public static void main(String[] args) {
int i = 4;
double d = 4.0;
String s = "HackerRank ";
Scanner scan = new Scanner(System.in);
/* Declare second integer, double, and String variables. */
int j;
double e;
String t;
/* Read and save an integer, double, and String to your variables.*/
j = scan.nextInt();
e = scan.nextDouble();
scan.nextLine();
t = scan.nextLine();
/* Print the sum of both integer variables on a new line. */
System.out.println(i + j);
/* Print the sum of the double variables on a new line. */
System.out.println(d + e);
/* Concatenate and print the String variables on a new line;
the 's' variable above should be printed first. */
System.out.println(s + t);
scan.close();
}
public static void main(String[] args) {
/* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
Scanner sc = new Scanner(System.in);
int mapSize = Integer.parseInt(sc.nextLine());
char[][] map = new char[mapSize][];
for (int i = 0; i < mapSize; i++) {
String numbersString = sc.nextLine();
map[i] = numbersString.toCharArray();
}
printMapWithCavities(map, mapSize);
}
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int T = Integer.parseInt(in.nextLine());
for (int a = 0; a < T; a++) {
String PAN = in.nextLine();
System.out.println(isValidPAN(PAN));
}
in.close();
}
public static void main(String[] args) {
/* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
Scanner sc = new Scanner(System.in);
String[][] numArray = new String[6][];
int largestSum = 0;
for (int i = 0; i < 6; i++) {
numArray[i] = sc.nextLine().split(" ");
}
for (int i = 0; i <= 3; i++) {
for (int j = 0; j <= 3; j++) {
int sum =
Integer.parseInt(numArray[i][j])
+ Integer.parseInt(numArray[i][j + 1])
+ Integer.parseInt(numArray[i][j + 2])
+ Integer.parseInt(numArray[i + 1][j + 1])
+ Integer.parseInt(numArray[i + 2][j])
+ Integer.parseInt(numArray[i + 2][j + 1])
+ Integer.parseInt(numArray[i + 2][j + 2]);
// System.out.println(sum);
if (i == 0 && j == 0) {
largestSum = sum;
} else {
if (sum > largestSum) {
largestSum = sum;
}
}
}
}
System.out.println(largestSum);
}
private static void displayPhoneBooks(ArrayList<String> phoneBooks)
throws IOException, ParseException {
if (phoneBooks.size() == 0) {
System.out.println("\nNO PHONEBOOK AVAILABLE.CREATE A NEW PHONEBOOK.\n");
return;
} else {
System.out.println("FOLLOWING ARE THE AVAILABLE PHONEBOOKS.");
System.out.println("----------------------------------------\n");
Scanner sc = new Scanner(System.in);
for (int i = 0; i < phoneBooks.size(); i++) {
String s = phoneBooks.get(i);
System.out.println(s + "\t->PRESS " + (i + 1) + " LOAD THIS.");
}
System.out.println("TO GO BACK TO THE PREVIOUS MENU->PRESS " + (phoneBooks.size() + 1));
int ch = 0;
while (ch < 1 || ch > (phoneBooks.size() + 1)) {
while (!sc.hasNextInt()) {
System.out.println("\nONLY NUMBERS LISTED ABOVE SHOULD BE ENTERED..RETRY..");
sc.nextLine();
}
ch = sc.nextInt();
if (ch < 1 || ch > phoneBooks.size())
System.out.println("\nONLY NUMBERS LISTED ABOVE SHOULD BE ENTERED..RETRY..");
}
if (ch == (phoneBooks.size() + 1)) return;
contactBookOperations(phoneBooks.get(ch - 1) + ".txt");
}
}
/** @param args the command line arguments */
public static void main(String[] args) {
// Takes user input and converts into a character array
Scanner sc = new Scanner(System.in);
int n = Integer.parseInt(sc.nextLine());
String input = sc.nextLine();
String[] a = input.split(" ");
BigInteger[] storage = new BigInteger[n];
BigInteger sum = new BigInteger("0");
// Converts and Stores Big Integers
for (int i = 0; i < n; i++) storage[i] = new BigInteger(a[i]);
// Sums the BigIntegers in storage
for (int j = 0; j < n; j++) sum = sum.add(storage[j]);
// Outputs the sum of values in storage as a string
System.out.println(sum);
}
public static void main(String[] args) throws IOException {
Scanner in = new Scanner(System.in);
// final String fileName = System.getenv("OUTPUT_PATH");
// BufferedWriter bw = new BufferedWriter(new FileWriter(fileName));
int res;
int _arr_size = Integer.parseInt(in.nextLine());
int[] _arr = new int[_arr_size];
int _arr_item;
for (int _arr_i = 0; _arr_i < _arr_size; _arr_i++) {
_arr_item = Integer.parseInt(in.nextLine());
_arr[_arr_i] = _arr_item;
}
res = lonelyInteger(_arr);
System.out.println(res);
// bw.write(String.valueOf(res));
// bw.newLine();
// bw.close();
}
public static void main(String[] args) throws IOException {
Scanner scanner = new Scanner(new BufferedInputStream(System.in));
while (scanner.hasNextLine()) {
String str = scanner.nextLine();
if (str.equals("0")) break;
String s[] = str.split(" ");
int sum = 1;
for (int i = 0; i < s.length; i += 2)
sum = sum * (int) Math.pow(Integer.parseInt(s[i]), Integer.parseInt(s[i + 1]));
Factorization f = new Factorization();
System.out.println(f.answer(sum - 1));
}
}
public static void main(String[] args) {
/* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
Scanner in = new Scanner(System.in);
String input = "";
int n = 1;
String output = "";
while (in.hasNextLine()) {
if (in.hasNext()) {
output += n + " " + in.nextLine() + "\n";
n++;
}
}
System.out.println(output);
}
public static void main(String[] args) throws FileNotFoundException, IOException {
JOptionPane myWindow;
myWindow = new JOptionPane();
String fileName;
fileName = myWindow.showInputDialog("Enter External Text File to Open;");
Scanner scanner = new Scanner(new File(fileName));
JTextArea outputOriginalFile = new JTextArea();
outputOriginalFile.setText("The Original File was:\n");
JTextArea outputTextArea = new JTextArea();
while (scanner.hasNext()) {
String fullName = scanner.nextLine();
outputOriginalFile.append(fullName + "\n");
}
myWindow.showMessageDialog(
null, outputOriginalFile, "Opened file....", myWindow.INFORMATION_MESSAGE);
PrintWriter pw = new PrintWriter(new File("outputOfFile.txt"));
String firstName, middleName, lastName;
JTextArea outputTextArea1 = new JTextArea();
outputTextArea1.setText("The Modified Text File is:\n");
Scanner scanner2 = new Scanner(new File(fileName));
while (scanner2.hasNext()) {
String fullName = scanner2.nextLine();
StringTokenizer st = new StringTokenizer(fullName, " ");
firstName = st.nextToken();
middleName = st.nextToken();
lastName = st.nextToken();
pw.println(lastName + ", " + firstName + " " + middleName.substring(0, 1) + ".");
outputTextArea1.append(
lastName + ", " + firstName + " " + middleName.substring(0, 1) + "." + "\n");
}
myWindow.showMessageDialog(null, outputTextArea1, "Results....", myWindow.INFORMATION_MESSAGE);
scanner.close();
scanner2.close();
pw.close();
}
private String getFileWords(String s) {
String output = "";
try {
// THIS CODE SEGMENT WILL NOT RUN IN AN APPLET THAT IS NOT "SIGNED"
// By default applets cannot alter files on the hard drive of the user.
// If the panel is opened in a regular application the save button should work.
// This can be tested in HomeworkApplication.java through HomeworkRun.java only
File inputFile = new File(s);
Scanner inputScanner = new Scanner(inputFile);
while (inputScanner.hasNext()) {
output = output + inputScanner.nextLine() + "\n";
}
inputScanner.close();
String numWords = getWords(output);
return numWords;
} catch (IOException e) {
outputLabel.append(e + "");
}
return output;
}
public static void main(String[] args) {
Scanner sc = null;
Scanner stringReader = null;
try {
int ch = 0;
sc = new Scanner(System.in);
boolean validFile = false;
stringReader = new Scanner(System.in);
System.out.println("\n\t\t\tCONTACTS APP");
System.out.println(
"--------------------------------------------------------------------------------");
while (ch != 5) {
System.out.println("\nTO CREATE PHONEBOOK->PRESS 1");
System.out.println("TO LOAD A CREATED PHONEBOOK->PRESS 2");
System.out.println("TO DELETE CREATED PHONEBOOK->PRESS 3");
System.out.println("TO LIST ALL PHONEBOOKS->PRESS 4");
System.out.println("TO EXIT->PRESS 5");
while (!sc.hasNextInt()) {
System.out.println("\nONLY NUMBERS RANGED FROM 1 - 5 SHOULD BE ENTERED..RETRY");
sc.nextLine();
}
ch = sc.nextInt();
switch (ch) {
case 1:
System.out.println(
"\nENTER NAME OF PHONEBOOK(Ex MyPhoneBook).DONT GIVE ANY EXTENSION.");
validFile = false;
String contactBookName = "";
while (!validFile) {
contactBookName = stringReader.nextLine();
if (contactBookName.equals("")) {
System.out.println("\nPHONEBOOK NAME MUST NOT BE EMPTY");
System.out.println(
"\nENTER NAME OF PHONEBOOK(Ex MyPhoneBook).DONT GIVE ANY EXTENSION.");
continue;
}
if (!(contactBookName.contains("/")
|| contactBookName.contains("\\")
|| contactBookName.contains(":")
|| contactBookName.contains("*")
|| contactBookName.contains("?")
|| contactBookName.contains("/")
|| contactBookName.contains("\"")
|| contactBookName.contains("<")
|| contactBookName.contains(">")
|| contactBookName.contains("|"))) {
String extension[] = contactBookName.split(".");
contactBookName = contactBookName + ".txt";
File contactBook = new File(contactBookName);
if (!contactBook.exists()) {
System.out.println("\nNEW PHONEBOOK CREATED::" + contactBookName);
validFile = true;
} else {
System.out.println(
"\nTHIS PHONEBOOK NAMED "
+ contactBookName
+ " ALREADY EXISTS\nPLEASE ENTER A DIFFERENT NAME");
}
} else {
System.out.println("\nFILE NAME CANNOT CONTAIN : /,\\,\",*,?,<,>,|");
System.out.println(
"\nENTER NAME OF CONTACTS BOOK TO CREATE WITHOUT FILE EXTENSION ");
}
}
contactBookOperations(contactBookName);
break;
case 2:
contactBookName = "";
System.out.println(
"\nENTER NAME OF PHONEBOOK(Ex MyPhoneBook) TO LOAD.DONT GIVE ANY EXTENSION.");
contactBookName = stringReader.nextLine();
while (true) {
if (contactBookName.equals("")) {
System.out.println("\nPHONEBOOK NAME MUST NOT BE EMPTY ");
} else {
break;
}
}
contactBookName += ".txt";
File contactBook = new File(contactBookName);
if (!contactBook.exists()) {
System.out.println("\nA PHONEBOOK WITH NAME " + contactBookName + " DOES NOT EXIST");
} else {
contactBookOperations(contactBookName);
}
break;
case 3:
contactBookName = "";
System.out.println("\nENTER NAME OF PHONEBOOK WITHOUT EXTENSION TO DELETE");
contactBookName = stringReader.nextLine();
if (contactBookName.equals("")) {
System.out.println("\nPHONEBOOK NAME CANNOT BE EMPTY ");
}
contactBookName += ".txt";
contactBook = new File(contactBookName);
if (!contactBook.exists()) {
System.out.println("\nA PHONEBOOK WITH NAME " + contactBookName + " DOES NOT EXIST");
} else {
contactBook.delete();
System.out.println("\nA PHONEBOOK " + contactBookName + " DELETED");
}
break;
case 4:
String curDirectory = System.getProperty("user.dir");
listPhoneBooks(curDirectory);
break;
case 5:
System.out.println("\nSUCCESSFULLY EXITED");
break;
default:
System.out.println("\nENTER ONLY NUMBERS RANGED FROM 1 - 5");
break;
}
}
} catch (Exception e) {
System.out.println("AN ERROR OCCURED!!");
e.printStackTrace();
} finally {
if (sc != null) sc.close();
if (stringReader != null) stringReader.close();
}
}
public static void contactBookOperations(String contactBookName)
throws IOException, ParseException {
FileWriter fr = new FileWriter(contactBookName, true);
BufferedReader fileReader = new BufferedReader(new FileReader(contactBookName));
BufferedWriter fileWriter = new BufferedWriter(fr);
String address = "";
String name = "";
boolean validName = false;
String dateOfBirth = "";
boolean dateValid = false;
String petName = "";
int tag = 0;
String contactType = "";
boolean invalidTag = false;
boolean moreEmail = false;
String email = "";
String emailChoice = "";
boolean morePhone = true;
String phoneChoice = "";
String phoneList = "";
String contactAdded = "";
long phoneNum = 0;
int choice = 0;
ArrayList<String> nameList =
new ArrayList<String>(); // arrayList to hold names of contacts in the file...
Scanner sc = new Scanner(System.in);
String searchString = "";
Scanner stringReader = new Scanner(System.in);
String line = "";
String totalDetails = "";
// System.out.println(fileReader);
while (choice != 6) {
System.out.println("\nTO ADD CONTACT->PRESS 1 ");
System.out.println("TO EDIT CONTACT->PRESS 2 ");
System.out.println("TO REMOVE CONTACT->PRESS 3 ");
System.out.println("TO LIST CONTACTS->PRESS 4 ");
System.out.println("TO SEARCH CONTACT->PRESS 5 ");
System.out.println("TO GO BACK TO PREVIOUS MENU->PRESS 6 ");
while (!sc.hasNextInt()) {
System.out.println("\nENTER ONLY NUMBERS RANGED FROM 0 - 6");
sc.next();
}
choice = sc.nextInt();
switch (choice) {
// ADD A NEW CONTACT........
case 1: // add contact option.............
// add name
dateValid = false;
invalidTag = true;
moreEmail = true;
morePhone = true;
email = "";
phoneList = "";
nameList.clear();
System.out.println("\nENTER NAME OF THE PERSON(Ex: Aditya Dey)");
validName = false;
fileReader = new BufferedReader(new FileReader(contactBookName));
while (!validName) {
name = stringReader.nextLine(); // read contact name from user
name = name.trim();
if (name.equals("")) {
System.out.println(
"\nNAME OF THE PERSON CANNOT BE BLANK\nENTER NAME OF THE PERSON(Ex: Aditya Dey)");
continue;
}
while (((line = fileReader.readLine()) != null)) // read till end of file
{
String s =
line.substring(0, line.indexOf('=')); // add each name that exists in the file
if (!nameList.contains(s)) {
nameList.add(s);
}
}
// System.out.println(nameList);
if (nameList.contains(name)) // if name already exists, print error message
{
System.out.println("\nA CONTACT NAMED " + name + " ALREADY EXISTS.");
System.out.println("\nPLEASE ADD ANOTHER NAME(Ex: Aditya Dey)");
} else {
validName = true;
nameList.add(name);
}
}
// date of birth
System.out.println(
"\nENTER DOB OF THE PERSON IN DD/MM/YYYY FORMAT Ex: 12/05/1992 OR PRESS ENTER TO SKIP");
while (!dateValid) {
dateOfBirth = stringReader.nextLine();
if (dateOfBirth.trim().compareTo("") == 0) dateValid = true;
else // doubt? next() skips next scan...
dateValid = isValidDate(dateOfBirth);
if (!dateValid) {
System.out.println(
"\nINVALID DATE...\nENTER DOB OF THE PERSON IN DD/MM/YYYY FORMAT Ex: 12/05/1992");
}
}
// System.out.println(dateOfBirth);
// add contact type
System.out.println("\nENTER PET NAME OF THE PERSON OR ENTER TO SKIP");
petName = stringReader.nextLine();
System.out.println("\nCHOOSE CONTACT TYPE...");
System.out.println("\nFOR FAMILY->PRESS 1 ");
System.out.println("FOR FRIENDS->PRESS 2 ");
System.out.println("FOR ASSOCIATES->PRESS 3 ");
System.out.println("FOR OTHERS->PRESS 4 ");
while (!sc.hasNextInt()) {
System.out.println("\nENTER ONLY NUMBERS RANGED FROM 1 - 4");
sc.nextLine();
}
tag = sc.nextInt();
while (invalidTag) {
switch (tag) {
case 1:
contactType = "Family";
invalidTag = false;
break;
case 2:
contactType = "Friend";
invalidTag = false;
break;
case 3:
contactType = "Associate";
invalidTag = false;
break;
case 4:
contactType = "Others";
invalidTag = false;
break;
default:
System.out.println("\nENTER ONLY NUMBERS RANGED FROM 1-4");
invalidTag = true;
break;
}
}
// System.out.println(contactType);
System.out.println("\nENTER ADDRESS IN ONE LINE OR PRESS ENTER TO SKIP");
address = stringReader.nextLine();
// System.out.println(address);
while (moreEmail) {
System.out.println("\nENTER EMAIL ADDRESS OR PRESS ENTER TO SKIP");
email = email + "," + stringReader.nextLine();
// System.out.println(email);
if (!(email.trim()).equals(",")) {
System.out.println(
"\nTO ADD EMAIL ADRESS->PRESS 'Y' OR 'y'..TO STOP ADDING EMAIL PRESS ANY OTHER KEY");
emailChoice = stringReader.nextLine();
if (emailChoice.equals("y") || emailChoice.equals("Y")) {
moreEmail = true;
} else {
moreEmail = false;
}
} else {
moreEmail = false;
}
}
email = email.substring(1, email.length());
// System.out.println(email);
while (morePhone) {
System.out.println("\nENTER CONTACT NUMBER");
while (!sc.hasNextLong()) {
System.out.println("\nINVALID CONTACT NUMBER.\nENTER A VALID CONTACT NUMBER");
sc.next();
}
phoneNum = sc.nextLong();
phoneList = phoneList + "," + phoneNum;
sc.nextLine(); // doubt? not included: doesnt read phonechoice.....
System.out.println(
"\nTO ADD MORE PHONE NUMBERS->PRESS 'Y' OR 'y' \nOTHERWISE PRESS ANY OTHER KEY");
phoneChoice = sc.nextLine();
if (phoneChoice.equals("y") || phoneChoice.equals("Y")) {
morePhone = true;
} else {
morePhone = false;
}
}
phoneList = phoneList.substring(1, phoneList.length());
System.out.println("FOLLOWING DETAILS HAS BEEN SAVED IN THE PHONEBOOK");
System.out.println("---------------------------------------------------");
System.out.println(
"["
+ name
+ ","
+ petName
+ ","
+ contactType
+ ","
+ address
+ ","
+ dateOfBirth
+ ","
+ email
+ ","
+ phoneList
+ "]");
totalDetails =
name
+ "="
+ dateOfBirth
+ ":"
+ petName
+ ":"
+ contactType
+ ":"
+ address
+ ":"
+ email
+ ":"
+ phoneList
+ ":"
+ new Date();
fileWriter.write(totalDetails);
fileWriter.newLine();
fileWriter.flush();
break;
// EDITING A CONTACT
case 2:
String editName = "";
String details = "";
String line3 = "";
String[] detailParts;
String newDob = "";
String newPetName = "";
String newAddress = "";
String newContactType = "";
String newEmail = "";
String newPhone = "";
String newString = "";
String name3 = "";
choice = 0;
nameList.clear();
String[] parts;
fileReader = new BufferedReader(new FileReader(contactBookName));
while (((line = fileReader.readLine()) != null)) // read till end of file
{
String s =
line.substring(0, line.indexOf('=')); // add each name that exists in the file
if (!nameList.contains(s)) {
nameList.add(s);
}
}
BufferedReader editReader = new BufferedReader(new FileReader(contactBookName));
dateValid = false;
invalidTag = true;
String editContact = "";
System.out.println("\nENTER THE CONTACT TO BE EDITED");
editName = stringReader.nextLine();
if (!nameList.contains(editName)) {
System.out.println("\nA CONTACT NAMED " + editName + " DOES NOT EXIST");
} else {
while ((line3 = editReader.readLine()) != null) {
// System.out.println(line3);
name3 = line3.substring(0, line3.indexOf("="));
if (!name3.equals(editName)) {
newString = newString + line3 + System.getProperty("line.separator");
} else {
editContact = line3;
}
}
details = editContact.substring(editContact.indexOf("=") + 1, editContact.length());
detailParts = details.split(":");
newDob = detailParts[0];
newPetName = detailParts[1];
newContactType = detailParts[2];
newAddress = detailParts[3];
newEmail = detailParts[4];
newPhone = detailParts[5];
while (choice != 7) {
System.out.println("\nTO EDIT DATE OF BIRTH->PRESS 1");
System.out.println("TO EDIT PET NAME->PRESS 2 ");
System.out.println("TO EDIT CONTACT TYPE->PRESS 3 ");
System.out.println("TO EDIT ADDRESS->PRESS 4 ");
System.out.println("TO ADD EMAIL->PRESS 5 ");
System.out.println("TO ADD PHONE NUMBER->PRESS 6 ");
System.out.println("TO GO BACK TO THE PREVIOUS MENU->PRESS 7 ");
System.out.print("ENTER YOUR CHOICE::\t");
while (!sc.hasNextInt()) {
System.out.println("ENTER ONLY INTEGERS IN THE RANGE 1-7");
sc.nextLine();
}
choice = sc.nextInt();
switch (choice) {
case 1:
System.out.println(
"\nENTER DOB OF THE PERSON IN DD/MM/YYYY FORMAT EG: 12/05/1992");
while (!dateValid) {
newDob = stringReader.nextLine(); // doubt? next() skips next scan...
dateValid = isValidDate(newDob);
if (!dateValid) {
System.out.println(
"\nINVALID DATE...ENTER DOB OF THE PERSON IN DD/MM/YYYY FORMAT EG: 12/05/1992");
}
}
break;
case 2:
System.out.println("\nENTER NEW PET NAME OF THE PERSON OR ENTER TO SKIP");
newPetName = stringReader.nextLine();
break;
case 3:
System.out.println("\nCHOOSE CONTACT TYPE...");
System.out.println("\nFOR FAMILY->PRESS 1 ");
System.out.println("FOR FRIENDS->PRESS 2 ");
System.out.println("FOR ASSOCIATES->PRESS 3 ");
System.out.println("FOR OTHERS->PRESS 4 ");
while (!sc.hasNextInt()) {
System.out.println("\nENTER ONLY NUMBERS IN THE RANGE 1 - 3");
sc.nextLine();
}
tag = sc.nextInt();
while (invalidTag) {
switch (tag) {
case 1:
newContactType = "Family";
invalidTag = false;
break;
case 2:
newContactType = "Friend";
invalidTag = false;
break;
case 3:
newContactType = "Associate";
invalidTag = false;
break;
case 4:
newContactType = "Others";
invalidTag = false;
break;
default:
System.out.println("\nENTER ONLY NUMBERS RANGED FROM 1-4");
invalidTag = true;
break;
}
}
break;
case 4:
System.out.println("\nENTER NEW ADDRESS IN ONE LINE");
newAddress = stringReader.nextLine();
break;
case 5:
moreEmail = true;
while (moreEmail) {
System.out.println("\nENTER EMAIL ADDRESS OR PRESS ENTER TO SKIP");
newEmail = newEmail + "," + stringReader.nextLine();
// System.out.println(email);
if (!(newEmail.trim()).equals(",")) {
System.out.println(
"TO ADD EMAIL->PRESS 'Y' OR 'y'..TO STOP ADDING EMAIL PRESS ANY OTHER KEY");
emailChoice = stringReader.nextLine();
if (emailChoice.equals("y") || emailChoice.equals("Y")) {
moreEmail = true;
} else {
moreEmail = false;
}
} else {
moreEmail = false;
}
}
break;
case 6:
morePhone = true;
while (morePhone) {
System.out.println("\nENTER PHONE NUMBER");
while (!sc.hasNextLong()) {
System.out.println("\nONLY VALID PHONE NUMBERS ALLOWED");
sc.next();
}
phoneNum = sc.nextLong();
newPhone = phoneNum + ",";
sc.nextLine(); // doubt? not included: doesnt read phonechoice.....
System.out.println(
"\nTO ADD MORE PHONE NUMBERS->PRESS 'y' or 'Y'\nOTHERWISE PRESS ANY OTHER KEY");
phoneChoice = sc.nextLine();
if (phoneChoice.equals("y") || phoneChoice.equals("Y")) {
morePhone = true;
} else {
morePhone = false;
}
}
phoneList = newPhone;
phoneList = phoneList.substring(1, phoneList.length());
break;
case 7:
System.out.println(
"["
+ editName
+ ","
+ newPetName
+ ","
+ newContactType
+ ","
+ newAddress
+ ","
+ newDob
+ ","
+ newEmail
+ ","
+ newPhone
+ "]");
String newDetails =
editName
+ "="
+ newDob
+ ":"
+ newPetName
+ ":"
+ newContactType
+ ":"
+ newAddress
+ ":"
+ newEmail
+ ":"
+ newPhone
+ ":"
+ new Date();
newString = newString + newDetails + System.getProperty("line.separator");
BufferedWriter editWriter = new BufferedWriter(new FileWriter(contactBookName));
editWriter.write(newString);
editWriter.close();
break;
default:
System.out.println("\nENTER ONLY NUMBERS RANGED FROM 1-7");
break;
}
}
}
// dob:petname:tag:address:email1,email2,email3..:ph1,ph2,...:crtdate
break;
case 3: // REMOVING A CONTACT
BufferedReader removalReader = new BufferedReader(new FileReader(contactBookName));
String name2 = "";
String line2 = "";
String nameRemoved = "";
String finalString = "";
System.out.println("\nENTER THE NAME TO BE REMOVED");
nameRemoved = stringReader.nextLine();
if (!nameList.contains(nameRemoved)) {
System.out.println("\nA CONTACT WITH NAME " + nameRemoved + " DOES NOT EXIST\n");
} else {
while ((line2 = removalReader.readLine()) != null) {
name2 = line2.substring(0, line2.indexOf("="));
if (!name2.equals(nameRemoved)) {
finalString = finalString + line2 + System.getProperty("line.separator");
}
}
BufferedWriter removalWriter = new BufferedWriter(new FileWriter(contactBookName));
removalWriter.write(finalString);
removalWriter.close();
System.out.println("CONTACT " + nameRemoved + " REMOVED ");
}
break;
// LISTING ELEMENTS
case 4:
int listChoice = 0;
BufferedReader listReader = new BufferedReader(new FileReader(contactBookName));
parts = null;
TreeMap<String, String> nameDetailMap = new TreeMap<String, String>();
String line4 = "";
while (listChoice != 4) {
System.out.println("\nTO DISPLAY CONTACTS BY ALPHABETICAL ORDERING OF NAMES->PRESS 1 ");
System.out.println("TO DISPLAY CONTACTS BY CREATED DATE->PRESS 2 ");
System.out.println("TO DISPLAY CONTACTS BY TAG->PRESS 3 ");
System.out.println("TO GO BACK TO PREVIOUS MENU->PRESS 4 ");
System.out.print("ENTER CHOICE::\t");
while (!sc.hasNextInt()) {
System.out.println("ENTER ONLY INTEGERS IN THE RANGE 1-4");
sc.next();
}
listChoice = sc.nextInt();
switch (listChoice) {
// ORDERING CONTACTS BY ALPHABETICAL ORDERING OF NAMES..............
case 1:
listReader = new BufferedReader(new FileReader(contactBookName));
line4 = "";
parts = null;
while ((line4 = listReader.readLine()) != null) {
parts = line4.split("=");
nameDetailMap.put(parts[0], parts[1]);
}
Collection<String> c = nameDetailMap.keySet();
Iterator<String> it = c.iterator();
if (it.hasNext()) {
System.out.println(
"\nCONTACTS BELOW ARE LISTED IN ALPHABETICAL ORDERING OF NAMES");
System.out.println("-----------------------------------------------------------");
} else {
System.out.println("NO CONTACTS AVAILABLE");
}
while (it.hasNext()) {
String s = (String) it.next();
System.out.println("\n\n" + s);
System.out.println("---------------------------------");
String[] contactDetail = nameDetailMap.get(s).split(":");
for (int i = 0; i < contactDetail.length; i++) {
if (contactDetail[i].trim().compareTo("") == 0) {
contactDetail[i] = "Unavailable";
}
}
System.out.println("Date of Birth::\t" + contactDetail[0]);
System.out.println("Pet name::\t" + contactDetail[1]);
System.out.println("Contact Type::\t" + contactDetail[2]);
System.out.println("Address::\t" + contactDetail[3]);
System.out.println("Email Address::\t" + contactDetail[4]);
System.out.println("Phone No::\t" + contactDetail[5]);
System.out.println("Contact added::\t" + contactDetail[6]);
}
break;
// ORDERING CONTACTS BY CREATED DATE..............
case 2:
BufferedReader br = new BufferedReader(new FileReader(contactBookName));
line4 = "";
String date = "";
String[] part;
TreeMap<Date, String> tm = new TreeMap<Date, String>();
while ((line4 = br.readLine()) != null) {
part = line4.split(":");
SimpleDateFormat formatter = new SimpleDateFormat("E MMM dd H:m");
String h = (part[6] + ":" + part[7]);
Date d = formatter.parse(h);
tm.put(d, line4);
}
Collection<Date> c1 = tm.keySet();
// System.out.println(c1);
Iterator<Date> it1 = c1.iterator();
if (it1.hasNext()) {
System.out.println("\nCONTACTS BELOW ARE LISTED IN ORDER OF CREATED DATES");
System.out.println("--------------------------------------------------------");
} else {
System.out.println("NO CONTACTS AVAILABLE");
}
while (it1.hasNext()) {
String s = it1.next().toString() + "";
// System.out.println(s);
System.out.println("\n\n" + s);
SimpleDateFormat formatter = new SimpleDateFormat("E MMM dd H:m");
Date d = formatter.parse(s);
System.out.println("---------------------------------");
String[] nameContact = tm.get(d).split("=");
System.out.println(nameContact[0]);
String[] contactDetail = nameContact[1].split(":");
for (int i = 0; i < contactDetail.length; i++) {
if (contactDetail[i].trim().compareTo("") == 0) {
contactDetail[i] = "Unavailable";
}
}
System.out.println("Date of Birth::\t" + contactDetail[0]);
System.out.println("Pet name::\t" + contactDetail[1]);
System.out.println("Contact Type::\t" + contactDetail[2]);
System.out.println("Address::\t" + contactDetail[3]);
System.out.println("Email Address::\t" + contactDetail[4]);
System.out.println("Phone No::\t" + contactDetail[5]);
}
break;
//// ORDERING CONTACTS BY TAG..............
// dob:petname:tag:address:email1,email2,email3..:ph1,ph2,...:crtdate
case 3:
ArrayList<String> familyList = new ArrayList<String>();
ArrayList<String> friendsList = new ArrayList<String>();
ArrayList<String> colleaguesList = new ArrayList<String>();
ArrayList<String> othersList = new ArrayList<String>();
line4 = "";
parts = null;
br = new BufferedReader(new FileReader(contactBookName));
while ((line4 = br.readLine()) != null) {
parts = line4.split(":");
String relation = parts[2];
if (relation.equals("Family")) {
familyList.add(line4);
} else if (relation.equals("Friend")) {
friendsList.add(line4);
} else if (relation.equals("Associate")) {
colleaguesList.add(line4);
} else {
othersList.add(line4);
}
}
if (familyList.isEmpty()
&& friendsList.isEmpty()
&& colleaguesList.isEmpty()
&& othersList.isEmpty()) {
System.out.println("NO CONTACTS AVAILABLE.");
} else {
System.out.println("\nCONTACTS BELOW ARE LISTED ACCORDING TO TAGS");
System.out.println("--------------------------------------------------------");
}
if (!familyList.isEmpty()) {
System.out.println("\nFAMILY CONTACTS\n----------------------------");
for (Object s : familyList) {
String[] nameContact = s.toString().split("=");
System.out.println(nameContact[0] + "\n");
String[] contactDetail = nameContact[1].split(":");
for (int i = 0; i < contactDetail.length; i++) {
if (contactDetail[i].trim().compareTo("") == 0) {
contactDetail[i] = "Unavailable";
}
}
System.out.println(" Date of Birth::\t" + contactDetail[0]);
System.out.println(" Pet name::\t\t" + contactDetail[1]);
System.out.println(" Address::\t\t" + contactDetail[3]);
System.out.println(" Email Address::\t" + contactDetail[4]);
System.out.println(" Phone No::\t\t" + contactDetail[5]);
System.out.println(" Contact added::\t" + contactDetail[6]);
}
}
if (!friendsList.isEmpty()) {
System.out.println("\nFRIEND CONTACTS\n----------------------------");
for (Object s : friendsList) {
String[] nameContact = s.toString().split("=");
System.out.println(nameContact[0] + "\n");
String[] contactDetail = nameContact[1].split(":");
for (int i = 0; i < contactDetail.length; i++) {
if (contactDetail[i].trim().compareTo("") == 0) {
contactDetail[i] = "Unavailable";
}
}
System.out.println(" Date of Birth::\t" + contactDetail[0]);
System.out.println(" Pet name::\t\t" + contactDetail[1]);
System.out.println(" Address::\t\t" + contactDetail[3]);
System.out.println(" Email Address::\t" + contactDetail[4]);
System.out.println(" Phone No::\t\t" + contactDetail[5]);
System.out.println(" Contact added::\t" + contactDetail[6]);
}
}
if (!colleaguesList.isEmpty()) {
System.out.println("\nASSOCIATE CONTACTS\n----------------------------");
for (Object s : colleaguesList) {
String[] nameContact = s.toString().split("=");
System.out.println(nameContact[0] + "\n");
String[] contactDetail = nameContact[1].split(":");
for (int i = 0; i < contactDetail.length; i++) {
if (contactDetail[i].trim().compareTo("") == 0) {
contactDetail[i] = "Unavailable";
}
}
System.out.println(" Date of Birth::\t" + contactDetail[0]);
System.out.println(" Pet name::\t\t" + contactDetail[1]);
System.out.println(" Address::\t\t" + contactDetail[3]);
System.out.println(" Email Address::\t" + contactDetail[4]);
System.out.println(" Phone No::\t\t" + contactDetail[5]);
System.out.println(" Contact added::\t" + contactDetail[6]);
}
}
if (!othersList.isEmpty()) {
System.out.println("\nOTHER CONTACTS\n----------------------------");
for (Object s : othersList) {
String[] nameContact = s.toString().split("=");
System.out.println(nameContact[0] + "\n");
String[] contactDetail = nameContact[1].split(":");
for (int i = 0; i < contactDetail.length; i++) {
if (contactDetail[i].trim().compareTo("") == 0) {
contactDetail[i] = "Unavailable";
}
}
System.out.println(" Date of Birth::\t" + contactDetail[0]);
System.out.println(" Pet name::\t\t" + contactDetail[1]);
System.out.println(" Address::\t\t" + contactDetail[3]);
System.out.println(" Email Address::\t" + contactDetail[4]);
System.out.println(" Phone No::\t\t" + contactDetail[5]);
System.out.println(" Contact added::\t" + contactDetail[6]);
}
}
break;
case 4:
break;
default:
System.out.println("\nENTER ONLY INTEGERS IN THE RANGE 1-5");
break;
}
}
break;
// SEARCH CONTACTS BOOK...
case 5:
String[] details1 = null;
line4 = "";
searchString = "";
parts = null;
String addedDetails = "";
fileReader = new BufferedReader(new FileReader(contactBookName));
System.out.println("ENTER THE STRING TO BE SERCHED FOR IN THE CONTACTS BOOK");
searchString = stringReader.nextLine();
ArrayList<String> nameMatchList = new ArrayList<String>();
ArrayList<String> emailMatchList = new ArrayList<String>();
ArrayList<String> tagMatchList = new ArrayList<String>();
ArrayList<String> addressMatchList = new ArrayList<String>();
ArrayList<String> dobMatchList = new ArrayList<String>();
ArrayList<String> phoneMatchList = new ArrayList<String>();
ArrayList<String> petNameMatchList = new ArrayList<String>();
String addedString = "";
while ((line4 = fileReader.readLine()) != null) {
parts = line4.split("=");
name = parts[0];
details1 = parts[1].split(":");
dateOfBirth = details1[0];
petName = details1[1];
contactType = details1[2];
address = details1[3];
email = details1[4];
phoneList = details1[5];
contactAdded = details1[6];
addedString = "";
// System.out.println("name = "+name+" dateOfbirth = "+dateOfBirth+" petName
// ="+petName+" contactType ="+contactType+"address ="+address+"email
// ="+email+"phoneList ="+phoneList);
if (name.contains(searchString)) {
addedString =
name
+ "="
+ dateOfBirth
+ ":"
+ petName
+ ":"
+ contactType
+ ":"
+ address
+ ":"
+ email
+ ":"
+ phoneList
+ ":"
+ contactAdded;
nameMatchList.add(addedString);
}
if (dateOfBirth.contains(searchString)) {
addedString =
name
+ "="
+ dateOfBirth
+ ":"
+ petName
+ ":"
+ contactType
+ ":"
+ address
+ ":"
+ email
+ ":"
+ phoneList
+ ":"
+ contactAdded;
dobMatchList.add(addedString);
}
if (petName.contains(searchString)) {
addedString =
name
+ "="
+ dateOfBirth
+ ":"
+ petName
+ ":"
+ contactType
+ ":"
+ address
+ ":"
+ email
+ ":"
+ phoneList
+ ":"
+ contactAdded;
petNameMatchList.add(addedString);
}
if (contactType.contains(searchString)) {
addedString =
name
+ "="
+ dateOfBirth
+ ":"
+ petName
+ ":"
+ contactType
+ ":"
+ address
+ ":"
+ email
+ ":"
+ phoneList
+ ":"
+ contactAdded;
tagMatchList.add(addedString);
}
if (address.contains(searchString)) {
addedString =
name
+ "="
+ dateOfBirth
+ ":"
+ petName
+ ":"
+ contactType
+ ":"
+ address
+ ":"
+ email
+ ":"
+ phoneList
+ ":"
+ contactAdded;
addressMatchList.add(addedString);
}
if (email.contains(searchString)) {
addedString =
name
+ "="
+ dateOfBirth
+ ":"
+ petName
+ ":"
+ contactType
+ ":"
+ address
+ ":"
+ email
+ ":"
+ phoneList
+ ":"
+ contactAdded;
emailMatchList.add(addedString);
}
if (phoneList.contains(searchString)) {
addedString =
name
+ "="
+ dateOfBirth
+ ":"
+ petName
+ ":"
+ contactType
+ ":"
+ address
+ ":"
+ email
+ ":"
+ phoneList
+ ":"
+ contactAdded;
phoneMatchList.add(addedString);
}
}
System.out.println(
"\nTOTAL NUMBER OF MATCHES = "
+ (nameMatchList.size()
+ dobMatchList.size()
+ petNameMatchList.size()
+ tagMatchList.size()
+ addressMatchList.size()
+ emailMatchList.size()
+ phoneMatchList.size()));
if (!nameMatchList.isEmpty()) {
System.out.println(
"\nTOTAL " + nameMatchList.size() + " NAMES MATCH WITh " + searchString + "\n");
System.out.println(
"\nTHE NAMES OF THE FOLLOWING CONTACTS MATCHES WITH THE SEARCH STRING ");
System.out.println(
"--------------------------------------------------------------------------------\n");
for (Object s : nameMatchList) {
showContactByType(s, 2);
}
}
if (!dobMatchList.isEmpty()) {
System.out.println(
"\nTOTAL " + dobMatchList.size() + " DOBS' MATCH WITH " + searchString + "\n");
System.out.println(
"\nTHE DOB'S OF THE FOLLOWING CONTACTS MATCHES WITH THE SEARCH STRING ");
System.out.println(
"--------------------------------------------------------------------------------\n");
for (Object s : dobMatchList) {
showContactByType(s, 2);
}
}
if (!petNameMatchList.isEmpty()) {
System.out.println(
"\nTOTAL "
+ petNameMatchList.size()
+ " PET NAMES MATCH WITH "
+ searchString
+ "\n");
System.out.println(
"\nTHE PET NAMES OF THE FOLLOWING CONTACTS MATCHES WITH THE SEARCH STRING ");
System.out.println(
"--------------------------------------------------------------------------------\n");
for (Object s : petNameMatchList) {
showContactByType(s, 2);
}
}
if (!tagMatchList.isEmpty()) {
System.out.println(
"\nTOTAL "
+ tagMatchList.size()
+ " CONTACT TYPES MATCH WITH THE "
+ searchString
+ "\n");
System.out.println(
"\nTHE TAGS OF THE FOLLOWING CONTACTS MATCHES WITH THE SEARCH STRING ");
System.out.println(
"--------------------------------------------------------------------------------\n");
for (Object s : tagMatchList) {
showContactByType(s, 2);
}
}
if (!addressMatchList.isEmpty()) {
System.out.println(
"\nTOTAL "
+ addressMatchList.size()
+ " ADDRESSES MATCH WITH "
+ searchString
+ "\n");
System.out.println(
"\nTHE ADDRESSES OF THE FOLLOWING CONTACTS MATCHES WITH THE SEARCH STRING ");
System.out.println(
"--------------------------------------------------------------------------------\n");
for (Object s : addressMatchList) {
showContactByType(s, 2);
}
}
if (!emailMatchList.isEmpty()) {
System.out.println(
"\nTOTAL " + emailMatchList.size() + " EMAILS MATCH WITH " + searchString + "\n");
System.out.println(
"\nTHE EMAIL'S OF THE FOLLOWING CONTACTS MATCHES WITH THE SEARCH STRING ");
System.out.println(
"--------------------------------------------------------------------------------\n");
for (Object s : emailMatchList) {
showContactByType(s, 2);
}
}
if (!phoneMatchList.isEmpty()) {
System.out.println(
"\nTOTAL "
+ phoneMatchList.size()
+ " CONTACT NUMBERS MATCH WITH "
+ searchString
+ "\n");
System.out.println(
"\nTHE PHONE NUMBERS OF THE FOLLOWING CONTACTS MATCHES WITH THE SEARCH STRING ");
System.out.println(
"--------------------------------------------------------------------------------\n");
for (Object s : phoneMatchList) {
showContactByType(s, 2);
}
}
break;
case 6:
break;
default:
System.out.println("\nENTER ONLY NUMBERS RANGED FROM 1-6");
break;
}
}
// fileReader.close();
// fileWriter.close();
// stringReader.close();
// sc.close();
}
public static void main(String[] args) {
int months[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12};
System.out.println("What is your birthday? (MM/dd/yyyy)");
Scanner scanner = new Scanner(System.in);
String birthDay = scanner.nextLine();
System.out.println("What is your name?");
String name = scanner.nextLine();
String[] parts = birthDay.split("/");
Calendar time = Calendar.getInstance();
int ageMillenniums = 0;
int ageCenturies = 0;
int ageDecades = 0;
String stringMillenniums = "";
String stringCenturies = "";
String stringDecades = "";
String stringYears = "";
String stringMonths = "";
String stringDays = "";
String stringHours = "";
String stringMinutes = "";
String stringSeconds = "";
int day = (time.get(Calendar.DATE));
int month = (months[time.get(Calendar.MONTH)]);
int year = (time.get(Calendar.YEAR));
int hour = (time.get(Calendar.HOUR));
int minute = (time.get(Calendar.MINUTE));
int second = (time.get(Calendar.SECOND));
int ageDays = day - Integer.parseInt(parts[1]);
int ageMonths = month - Integer.parseInt(parts[0]);
int ageYears = year - Integer.parseInt(parts[2]);
if (ageDays < 0) {
if (month == 2
|| month == 4
|| month == 6
|| month == 8
|| month == 9
|| month == 11
|| month == 1) {
ageMonths--;
ageDays += 31;
} else if (month == 5 || month == 7 || month == 10 || month == 12) {
ageMonths--;
ageDays += 30;
} else {
ageMonths--;
ageDays += 28;
}
}
if (ageMonths < 0) {
ageYears--;
ageMonths += 12;
}
while (ageYears > 1000) {
ageYears -= 1000;
ageMillenniums++;
}
while (ageYears > 100) {
ageYears -= 100;
ageCenturies++;
}
while (ageYears > 10) {
ageYears -= 10;
ageDecades++;
}
if (ageMillenniums == 0) {
stringMillenniums = "";
} else if (ageMillenniums == 1) {
stringMillenniums = ageMillenniums + " millennium, ";
} else {
stringMillenniums = ageMillenniums + " millenniums, ";
}
if (ageCenturies == 0) {
stringCenturies = "";
} else if (ageCenturies == 1) {
stringCenturies = ageCenturies + " century, ";
} else {
stringCenturies = ageCenturies + " centuries, ";
}
if (ageDecades == 0) {
stringDecades = "";
} else if (ageDecades == 1) {
stringDecades = ageDecades + " decade, ";
} else {
stringDecades = ageDecades + " decades, ";
}
if (ageYears == 0) {
stringYears = "";
} else if (ageYears == 1) {
stringYears = ageYears + " year, ";
} else {
stringYears = ageYears + " years, ";
}
if (ageMonths == 0) {
stringMonths = "";
} else if (ageMonths == 1) {
stringMonths = ageMonths + " month, ";
} else {
stringMonths = ageMonths + " months, ";
}
if (ageDays == 0) {
stringDays = "";
} else if (ageDays == 1) {
stringDays = ageDays + " day, ";
} else {
stringDays = ageDays + " days, ";
}
if (hour == 0) {
stringHours = "";
} else if (hour == 1) {
stringHours = hour + " hour, ";
} else {
stringHours = hour + " hours, ";
}
if (minute == 0) {
stringMinutes = "";
} else if (minute == 1) {
stringMinutes = minute + " minute, ";
} else {
stringMinutes = minute + " minutes, ";
}
if (second == 0) {
stringSeconds = "";
} else if (second == 1) {
stringSeconds = second + " second ";
} else {
stringSeconds = second + " seconds ";
}
System.out.println(
name
+ " is "
+ stringMillenniums
+ stringCenturies
+ stringDecades
+ stringYears
+ stringMonths
+ stringDays
+ stringHours
+ stringMinutes
+ stringSeconds
+ "old");
}