private static String checkString(Func function, Scanner input, boolean newAccount, UserID uid) {
String str = "";
boolean valid = false;
while (!valid) {
if (function == Func.USERNAME) {
if (newAccount) {
System.out.println("Please enter your new username: "******"Please enter your user name");
}
str = input.next();
valid = checkUserName(str, newAccount);
} else if (function == Func.PASSWORD) {
System.out.println("Please enter your password: "******"Please enter your first name: ");
str = input.next();
valid = str.length() > 2;
}
if (!valid && !newAccount) return null;
}
return !valid ? null : str;
}
/*
* Similar to makeSureValInRange function except it is meant to return
* more than one values of valid user input via LinkedList and it will
* not return unless all of the input is valid
* @param1 scanner object
* @param2 lowerbound int
* @param3 upperbound int
* @param4 String that represents the entity we are entering the values for
*/
public static LinkedList<Integer> makeSureValInRange2(
Scanner scan, int lowerbound, int upperbound, String inputFor) {
assert (lowerbound <= upperbound);
LinkedList<Integer> list = new LinkedList<Integer>();
System.out.println(
SearchCriteria.prioritySetUpString(
SearchCriteria.StringEnum.SELECT_CRITERIA, inputFor)); // prints the options to the user
int value = scan.nextInt();
if (valInRange(lowerbound, upperbound, value)) {
list.add(value); // If the first inputted is in range then we add more values
boolean done = false;
int i = lowerbound;
while (!done
&& i < upperbound) { // keep looking for input until user enters a duplicate value
// or the LinkedList of input is full
value = scan.nextInt();
if (!list.contains(value) && valInRange(lowerbound, upperbound, value)) list.add(value);
else done = true;
i++;
}
return list;
} else { // If the first value intered is not valid, then we return a null, which means that
// we use default values (all values within range)
System.out.println(
SearchCriteria.prioritySetUpString(SearchCriteria.StringEnum.DEFAULT, inputFor));
return null;
}
}
/*
* Making sure that the user input is in range
* @param1 Scanner object for input
* @param2 lowerbound integer
* @param3 upperbound integer
* @param4 String that specifies for which attribute/field input is for
* printing purposes
* @param5 ValType enum that specifies whether the primitive value is
* an int or double
* @param6 boolean that specifies whether the input is an Enum value
* @param7 boolean that specifies whether to return the value if out of
* range (false) or not (true)
*/
public static Number makeSureValInRange(
Scanner input,
int lowerbound,
int upperbound,
String inputFor,
ValType valType,
boolean enumeration,
boolean withinRange) {
boolean valid = !withinRange;
Number val = 0;
while (!valid) {
System.out.println(inputString(inputFor, null, StringOption.SELECT, enumeration));
val = valType == ValType.INTEGER ? input.nextInt() : input.nextDouble();
if (val.intValue() < lowerbound || val.intValue() > upperbound) {
System.out.println(inputString(inputFor, null, StringOption.INCORRECT, enumeration));
} else {
valid = true;
}
}
return val;
}
/** Display the file in the text area */
private void showFile() {
Scanner input = null;
try {
// Use a Scanner to read text from the file
input = new Scanner(new File(jtfFilename.getText().trim()));
// Read a line and append the line to the text area
while (input.hasNext()) jtaFile.append(input.nextLine() + '\n');
} catch (FileNotFoundException ex) {
System.out.println("File not found: " + jtfFilename.getText());
} catch (IOException ex) {
ex.printStackTrace();
} finally {
if (input != null) input.close();
}
}
public static void main(String args[]) throws IOException {
MissingValues mv = new MissingValues();
while (true) {
System.out.println(
"Menu : \t1. Global Constant\t2. AtrributeMean\n\t3. Specific AttributeMean\t4. Most ProbableValue\n\t\t\t0. Exit");
switch (in.nextInt()) {
case 1:
mv.globalConstant();
break;
case 2:
mv.attributeMean();
break;
case 3:
mv.specificAttributeMean();
break;
case 4:
mv.probableValue();
break;
case 0:
System.exit(0);
default:
System.out.println("Invalid Option..!");
}
}
}
protected static void removeContact(UserID user, Scanner scan) {
System.out.println("Please enter username of the user you want to remove: ");
String username = scan.next();
if (user.removeContact(username)) {
System.out.println("Remove was successful.");
} else {
System.out.println("Cannot remove contact, check make sure username is correct");
}
}
protected static void addContact(UserID user, Scanner scan) {
assert (user != null);
System.out.println("Please enter username of the user you want to add: ");
String username = scan.next();
UserID userAboutToAdd = registeredUsers.get(username);
if (userAboutToAdd != null) {
user.addContact(username);
System.out.println("Contact added.");
} else System.out.println("Contact cannot be added, check make sure username is correct");
}
public static void main(String[] args) throws Exception {
File f = new File(inputFile);
if (f.exists()) {
Scanner input = new Scanner(f);
String credentials = input.nextLine();
input.close();
String uname = credentials.split(",")[0].split("=")[1];
String pword = credentials.split(",")[1].split("=")[1];
con = connectToDb(uname, pword);
if (con != null) {
System.out.println("Connected to Database:" + con);
loadData(uname, pword);
task1();
task2();
task3();
task4();
con.close();
} else System.out.println("Connection Error");
} else System.out.println("Input file system.in not found");
}
public static void main(String args[]) throws IOException {
try {
Scanner in = args.length == 0 ? new Scanner(System.in) : new Scanner(Paths.get(args[0]));
try (Connection conn = getConnection()) {
Statement stat = conn.createStatement();
while (true) {
if (args.length == 0) System.out.println("Enter command or EXIT to exit:");
if (!in.hasNextLine()) return;
String line = in.nextLine();
if (line.equalsIgnoreCase("EXIT")) return;
if (line.trim().endsWith(";")) // remove trailing semicolon
{
line = line.trim();
line = line.substring(0, line.length() - 1);
}
try {
boolean isResult = stat.execute(line);
if (isResult) {
ResultSet rs = stat.getResultSet();
showResultSet(rs);
} else {
int updateCount = stat.getUpdateCount();
System.out.println(updateCount + " rows updated");
}
} catch (SQLException ex) {
for (Throwable e : ex) e.printStackTrace();
}
}
}
} catch (SQLException e) {
for (Throwable t : e) t.printStackTrace();
}
}
protected static void searchBasedOnCriteria(UserID user, Scanner scan) {
assert (user != null && scan != null);
SearchCriteria criteria = user.getUserCriteria();
if (criteria != null) { //
System.out.println("Current search criteria:\n" + criteria);
System.out.println(
"Press 1 if you would like to set up new search criteria or "
+ "anything else if you want to use current one");
String input = scan.next();
if (input.length() == 1 && input.charAt(0) == '1') user.setUpSearch(scan);
} else {
user.setUpSearch(scan);
}
Search search = new Search(user);
printUserList(search.findUsersBasedOnSearchCriteria());
}
/*
* method used to input values for search criteria ranges (Age, Weight, Height)
* User can enter -1 to input default values (lowerbound, upperbound) or the function
* won't terminate until proper input is entered for the range
* @param5 Enum specifies type of val we are entering input for; either an integer or double
*/
public static Number[] makeSureValInRangeRange(
Scanner scan, int lowerbound, int upperbound, String className, ValType type) {
System.out.println(
"Press and enter any value on keyboard to enter values for "
+ className
+ " range or enter -1 to use default values for the range");
Number[] range = new Number[2];
if (scan.nextInt() == -1) {
System.out.println("You had selected default values");
range[0] = lowerbound;
range[1] = upperbound;
return range;
} else {
range[0] = makeSureValInRange(scan, lowerbound, upperbound, "lowerbound", type, false, true);
range[1] = makeSureValInRange(scan, lowerbound, upperbound, "upperbound", type, false, true);
return range;
}
}
public static void main(String[] args) {
//////////////////////////
// The values in following 4 lines should be user input
int startPos = 200;
int endPos = 1000;
int totalNumPixel = 1044;
double threshhold = 0.0001;
/////////////////////////
int numPixel = endPos - startPos;
double wavelength[] = new double[totalNumPixel];
double photonCount[] = new double[totalNumPixel];
double SpecNoBk[] = new double[numPixel];
double ThisSpectrum[] = new double[numPixel];
double ThisXaxis[] = new double[numPixel];
double Po[] = new double[numPixel];
double Re[] = new double[numPixel];
double P[] = new double[6];
double Re2[] = new double[numPixel - 1];
double mySUM[] = new double[numPixel];
int ind[];
double DEV;
double prevDEV;
Connection connection = null;
Statement stmt = null;
String pattern = "##.##";
try {
Scanner in = new Scanner(new FileReader(args[0]));
int i = 0;
while (in.hasNextDouble()) {
wavelength[i] = in.nextDouble();
photonCount[i] = in.nextDouble();
++i;
}
} catch (FileNotFoundException e) {
e.printStackTrace();
}
ThisSpectrum = Arrays.copyOfRange(photonCount, startPos, endPos);
ThisXaxis = Arrays.copyOfRange(wavelength, startPos, endPos);
final WeightedObservedPoints obs = new WeightedObservedPoints();
for (int i = 0; i < numPixel; i++) {
obs.add(ThisXaxis[i], ThisSpectrum[i]);
}
final PolynomialCurveFitter fitter = PolynomialCurveFitter.create(5);
P = fitter.fit(obs.toList());
Polyval pVal = new Polyval(P, ThisXaxis, numPixel);
Po = pVal.evl();
for (int i = 0; i < numPixel; i++) {
Re[i] = ThisSpectrum[i] - Po[i];
}
for (int i = 0; i < numPixel - 1; i++) {
Re2[i] = Re[i + 1] - Re[i];
}
DEV = Math.sqrt(StatUtils.populationVariance(Re2, 0, Re2.length));
for (int i = 0; i < numPixel; i++) {
mySUM[i] = Po[i] + DEV;
}
int jj = 0; // jj is the length of points to be removed
for (int i = 0; i < numPixel; i++) {
if (ThisSpectrum[i] > mySUM[i]) {
jj++;
;
}
}
ind = new int[jj];
int jjj = 0;
for (int i = 0; i < numPixel; i++) {
if (ThisSpectrum[i] > mySUM[i]) {
ind[jjj] = i;
jjj++;
}
}
int indKeepLength = numPixel - ind.length;
int indKeep[] = new int[indKeepLength];
int k = 0;
for (int i = 0; i < numPixel; i++) {
if (!ArrayUtils.contains(ind, i)) {
indKeep[k] = i;
k++;
}
}
double ThisSpectrumKeep[] = new double[indKeepLength];
double ThisXaxisKeep[] = new double[indKeepLength];
double PoKeep[] = new double[indKeepLength];
double ReKeep[] = new double[indKeepLength];
double Re2Keep[] = new double[indKeepLength - 1];
double mySUMKeep[] = new double[indKeepLength];
for (int i = 0; i < indKeepLength; i++) {
ThisSpectrumKeep[i] = ThisSpectrum[indKeep[i]];
ThisXaxisKeep[i] = ThisXaxis[indKeep[i]];
}
prevDEV = DEV;
// at the point, ThisSpectrum and ThisXaxis should have reduced size
final WeightedObservedPoints obs1 = new WeightedObservedPoints();
for (int i = 0; i < indKeepLength; i++) {
obs1.add(ThisXaxisKeep[i], ThisSpectrumKeep[i]);
}
while (true) {
final PolynomialCurveFitter fitter1 = PolynomialCurveFitter.create(5);
P = fitter1.fit(obs1.toList());
Polyval pVal1 = new Polyval(P, ThisXaxisKeep, indKeepLength);
PoKeep = pVal1.evl();
for (int i = 0; i < indKeepLength; i++) {
ReKeep[i] = ThisSpectrumKeep[i] - PoKeep[i];
}
for (int i = 0; i < indKeepLength - 1; i++) {
Re2Keep[i] = ReKeep[i + 1] - ReKeep[i];
}
DEV = Math.sqrt(StatUtils.populationVariance(Re2Keep, 0, Re2Keep.length));
for (int i = 0; i < indKeepLength; i++) {
mySUMKeep[i] = PoKeep[i] + DEV;
}
for (int i = 0; i < indKeepLength; i++) {
if (ThisSpectrumKeep[i] > mySUMKeep[i]) ThisSpectrumKeep[i] = mySUMKeep[i];
}
if ((Math.abs(DEV - prevDEV) / DEV) < threshhold) break;
prevDEV = DEV;
obs1.clear();
for (int i = 0; i < indKeepLength; i++) {
obs1.add(ThisXaxisKeep[i], ThisSpectrumKeep[i]);
}
}
Polyval pVal2 = new Polyval(P, ThisXaxis, numPixel);
double FLbk[] = pVal2.evl();
for (int i = 0; i < ThisXaxis.length; i++) {
SpecNoBk[i] = ThisSpectrum[i] - FLbk[i];
}
// the write-to-file part is only for testing purpose, ThisXaxis and SpecNoBk are two outputs
try {
FileWriter fr = new FileWriter(args[1]);
BufferedWriter br = new BufferedWriter(fr);
PrintWriter out = new PrintWriter(br);
DecimalFormat df = new DecimalFormat(pattern);
for (int j = 0; j < ThisXaxis.length; j++) {
if (Double.toString(wavelength[j]) != null) out.write(ThisXaxis[j] + "\t" + SpecNoBk[j]);
out.write("\r\n");
}
out.close();
} catch (IOException e) {
System.out.println(e);
}
}
private void insertRows(Connection connection) {
// Build the SQL INSERT statement
String sqlInsert = "insert into " + jtfTableName.getText() + " values (";
// Use a Scanner to read text from the file
Scanner input = null;
// Get file name from the text field
String filename = jtfFilename.getText().trim();
try {
// Create a scanner
input = new Scanner(new File(filename));
// Create a statement
Statement statement = connection.createStatement();
System.out.println(
"Driver major version? " + connection.getMetaData().getDriverMajorVersion());
// Determine if batchUpdatesSupported is supported
boolean batchUpdatesSupported = false;
try {
if (connection.getMetaData().supportsBatchUpdates()) {
batchUpdatesSupported = true;
System.out.println("batch updates supported");
} else {
System.out.println(
"The driver is of JDBC 2 type, but " + "does not support batch updates");
}
} catch (UnsupportedOperationException ex) {
System.out.println("The driver does not support JDBC 2");
}
// Determine if the driver is capable of batch updates
if (batchUpdatesSupported) {
// Read a line and add the insert table command to the batch
while (input.hasNext()) {
statement.addBatch(sqlInsert + input.nextLine() + ")");
}
statement.executeBatch();
jlblStatus.setText("Batch updates completed");
} else {
// Read a line and execute insert table command
while (input.hasNext()) {
statement.executeUpdate(sqlInsert + input.nextLine() + ")");
}
jlblStatus.setText("Single row update completed");
}
} catch (SQLException ex) {
System.out.println(ex);
} catch (FileNotFoundException ex) {
System.out.println("File not found: " + filename);
} catch (IOException ex) {
ex.printStackTrace();
} finally {
if (input != null) input.close();
}
}