public static void main(String[] args) throws FileNotFoundException {
Scanner inFile = new Scanner(new FileReader("Lab3_input.txt"));
PrintWriter outFile = new PrintWriter("Lab3_Exercise_output.txt");
// Declare variables
String lastName, firstName;
double salary, pctRaise, salaryFinal;
// set up while loop
while (inFile.hasNext()) // condition checks to see if there is anything in the input file
{
// Read information from input file
lastName = inFile.next();
firstName = inFile.next();
salary = inFile.nextDouble();
pctRaise = inFile.nextDouble();
// Calculate final salary
salaryFinal = salary + (salary * pctRaise / 100);
// Write file
outFile.printf("%s %s %.2f%n", lastName, firstName, salaryFinal);
}
// Close input/output methods
outFile.close();
inFile.close();
}
public static void main(String[] args) {
Scanner scanRadius = new Scanner(System.in);
Scanner scanCenter = new Scanner(System.in);
Point2D centerA = new Point2D.Double();
Point2D centerB = new Point2D.Double();
double x, y, radiusA = 0, radiusB = 0;
for (char i = 'A'; i <= 'B'; i++) {
System.out.print("\nCircle " + i);
System.out.print("\nEnter center cordinates:" + "\n(x): ");
x = scanCenter.nextDouble();
System.out.print("(y): ");
y = scanCenter.nextDouble();
System.out.print("Enter radius: ");
if (i == 'A') {
radiusA = scanCenter.nextDouble();
centerA.setLocation(x, y);
} else if (i == 'B') {
radiusB = scanCenter.nextDouble();
centerB.setLocation(x, y);
}
}
scanRadius.close();
scanCenter.close();
double distance = distance(centerA, centerB);
if (distance == (radiusA + radiusB)) System.out.println("\nThe two circles are touching");
else if ((distance < Math.abs(radiusA - radiusB)))
System.out.println("\nOne circle encloses another");
else if (distance < (radiusA + radiusB)) System.out.println("\nThe two circles overlap");
else if (distance > (radiusA + radiusB)) System.out.println("\nThe two circles are separate");
}
/** @param args the command line arguments */
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
// Enter annual interest rate in percentage, e.g., 7.25%
System.out.print("Enter annual interest rate (e.g., 7.25%): ");
double annualInterestRate = sc.nextDouble();
// Obtain monthly interest rate
double monthlyInterestRate = computeMonthlyInterestRate(annualInterestRate);
// Enter number of years
System.out.print("Enter number of years as an integer (e.g., 5): ");
int numberOfYears = sc.nextInt();
// Enter loan amount
System.out.print("Enter loan amount (e.g., 120000.95): ");
double loanAmount = sc.nextDouble();
// Calculate monthly payment
double monthlyPayment = computeMonthlyPayment(loanAmount, monthlyInterestRate, numberOfYears);
double totalPayment = monthlyPayment * numberOfYears * 12;
// Display results
System.out.printf("The monthly payment: $%8.2f%n", (int) (monthlyPayment * 100) / 100.0);
System.out.printf("The total payment: $%8.2f%n", (int) (totalPayment * 100) / 100.0);
}
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
while (true) {
int n = sc.nextInt();
if (n < 0) return;
double pago = sc.nextDouble();
double inicial = sc.nextDouble();
int nval = sc.nextInt();
for (int i = 0; i <= n; i++) {
prc[i] = Double.POSITIVE_INFINITY;
}
for (int i = 0; i < nval; i++) {
int pos = sc.nextInt();
prc[pos] = sc.nextDouble();
}
double prcAnt = prc[0];
double deuda = inicial;
inicial += pago;
pago = deuda / n;
inicial = inicial - inicial * prcAnt;
int i;
for (i = 1; i <= n; i++) {
if (deuda < inicial) {
i = 0;
break;
}
deuda -= pago;
if (prc[i] != Double.POSITIVE_INFINITY) prcAnt = prc[i];
inicial = inicial - inicial * prcAnt;
if (deuda < inicial) break;
}
if (i == 1) System.out.println("1 month");
else System.out.println(i + " months");
}
}
public static void main(String[] args) {
// Draw the UML diagram for the class and then implement the class.
// Write a test
// program that prompts the user to enter a, b, c, d, e, and f and
// displays the result.
// If ad - bc is 0, report that “The equation has no solution
// skener za unos varijabli
Scanner input = new Scanner(System.in);
System.out.println("Unesite vrijednosti za a,b,c,d,e,f");
double a = input.nextDouble();
double b = input.nextDouble();
double c = input.nextDouble();
double d = input.nextDouble();
double e = input.nextDouble();
double f = input.nextDouble();
// pravimo objekat nest sa konstruktorom kome prosljedjujemo varijable
LinearEquation nest = new LinearEquation(a, b, c, d, e, f);
// uslov
if (nest.isSolvable() == false) {
// ispis
System.out.println("The equation has no solution!");
} else {
// ispis
System.out.println("x = " + nest.getX() + " y = " + nest.getY());
}
// zatvaramo skener
input.close();
}
public static void main(String[] args) {
Scanner ulaz = new Scanner(System.in);
// pravimo matrice
double[][] matrix1 = new double[3][3];
double[][] matrix2 = new double[3][3];
try {
// unos prve matrice
System.out.println("Unesite elemente prve matrice:");
for (int a = 0; a < matrix1.length; a++) {
for (int b = 0; b < matrix1.length; b++) {
matrix1[a][b] = ulaz.nextDouble();
}
}
// unos druge matrice
System.out.println("Unesite elemente druge matrice:");
for (int a = 0; a < matrix2.length; a++) {
for (int b = 0; b < matrix2.length; b++) {
matrix2[a][b] = ulaz.nextDouble();
}
}
System.out.println();
množi(matrix1, matrix2);
} catch (InputMismatchException ex) {
System.out.println("GREŠKA: Neispravan unos podataka!");
ulaz.close();
}
}
public static void readParameters(String filename) throws IOException {
BufferedReader in = new BufferedReader(new FileReader(filename));
Scanner scanner = new Scanner(in);
scanner.useDelimiter("[ \t\n,;()]+");
su = scanner.nextInt();
sv = scanner.nextInt();
numImages = su * sv;
System.out.println(su + " x " + sv);
positions = new double[sv][su][2];
for (int i = 0; i != numImages; ++i) {
positions[i / su][i % su][0] = scanner.nextDouble();
positions[i / su][i % su][1] = scanner.nextDouble();
}
int numCoefs = scanner.nextInt();
coefs = new double[4][numCoefs];
for (int i = 0; i != 4; ++i) {
for (int j = 0; j != numCoefs; ++j) {
coefs[i][j] = scanner.nextDouble();
System.out.print(coefs[i][j] + ", ");
}
System.out.println();
}
System.out.println();
// optional?
perspectiveX = scanner.nextDouble();
perspectiveY = scanner.nextDouble();
}
public static void main(String[] args) {
// init object
Account account1 = new Account(50.00);
Account account2 = new Account(-7.53);
// print objects balance
System.out.printf("account1 balance: $%.2f\n", account1.getBalance());
System.out.printf("account2 balance: $%.2f\n", account2.getBalance());
// create scanner to read user input
Scanner input = new Scanner(System.in);
double depositAmount; // deposite amount read from user
System.out.print("Enter deposit amount for account 1: ");
depositAmount = input.nextDouble();
System.out.printf("\nadding %.2f to account1 balance\n\n", depositAmount);
account1.credit(depositAmount);
// display message
System.out.printf("account1 balance $%.2f\n", account1.getBalance());
System.out.printf("account2 balance $%.2f\n", account2.getBalance());
// prompt
System.out.print("Enter deposit amount for account2: ");
depositAmount = input.nextDouble();
System.out.printf("\nadding %.2f to account2 balance\n\n", depositAmount);
account2.credit(depositAmount);
// display balance
System.out.printf("account1 balance $%.2f\n", account1.getBalance());
System.out.printf("account2 balance $%.2f\n", account2.getBalance());
}
/** This method will get the information to create an instance of a MarshmallowMonster. */
private void MakeUserMonster() {
// Step one: Get variables
String userName;
int userEyes;
int userNoseCount;
double userHair;
double userLegs;
boolean userBellyButton;
// Step two: Define variables by using Scanner to get user input.
System.out.println("Type in your name for your monster.");
userName = monsterScanner.nextLine();
System.out.println("Type in the number of eyes for your monster");
userEyes = monsterScanner.nextInt();
System.out.println("Type in the number of noses for you monster");
userNoseCount = monsterScanner.nextInt();
System.out.println("How much hair does your monster have? Type in a floating point or decimal");
userHair = monsterScanner.nextDouble();
System.out.println("How many legs?");
userLegs = monsterScanner.nextDouble();
System.out.println("Does it have a belly button? Type true or false");
userBellyButton = monsterScanner.nextBoolean();
// Step three: make a monster - use the constructor.
userMonster =
new MarshmallowMonsters(
userName, userEyes, userNoseCount, userHair, userLegs, userBellyButton);
}
public static void main(String args[]) {
// квадратное уравнение
// a*x*x + b*x + c = 0
// дискриминант D= b2-4ac
Scanner s = new Scanner(System.in);
System.out.print("Ввидите А : ");
double a = s.nextDouble();
System.out.print("Ввидите В : ");
double b = s.nextDouble();
System.out.print("Ввидите С : ");
double c = s.nextDouble();
double d = b * b - 4 * a * c;
if (a == 0) { // если а=0, то уравнение решается линейно
System.out.println("x=" + (-c / b));
} else if (d < 0) {
System.out.println("Нет корней");
} else if (d == 0) {
System.out.println("x=" + (-b / 2 / a));
} else if (d > 0) {
// формула корней: x1,2=(-b+-sqrtd)/2a
System.out.println("x1=" + ((-b + Math.sqrt(d)) / 2 / a));
System.out.println("x1=" + ((-b - Math.sqrt(d)) / 2 / a));
// System.out.println(Math.pow(6,2));
// Math.pow - возводит число в степень
// Вданном случае возводит 6 во вторую степень
}
}
// Define main method for block program
public static void main(String args[]) {
// Define method to read keyboard input
Scanner input = new Scanner(System.in);
// Prompt user to input dimensions of block using Scanner. Saves dimensions
System.out.println("Enter length of the block: ");
double length = input.nextDouble();
System.out.println("Enter width of the block: ");
double width = input.nextDouble();
System.out.println("Enter height of the block: ");
double height = input.nextDouble();
// Calculates volume
double volume = length * width * height;
// Calculates Surface Area
double SA = 2 * (length * width + length * height + width * height);
// prints volume and surface area
System.out.println(
"The volume of the block is "
+ volume
+ " and the surface area of the block is "
+ SA
+ ".");
} // matches main method
public static void percents() {
Scanner sc = new Scanner(System.in);
System.out.print("Enter your bank deposit: ");
double x = sc.nextDouble();
double y = 0;
while (y <= x) { // inability to enter the smaller final result
System.out.print(
"Enter the desired result from the contribution of: "); // there must be progress, not
// regress;)
y = sc.nextInt();
}
System.out.print("Enter the interest rate: ");
double p = sc.nextDouble();
int years = 0;
double per = p / 100;
int nx = (int) x;
while (nx < y) {
double percent = nx * per;
x += percent;
years++;
nx = (int) x; // reject a penny, rounding to the smaller value. How does the bank;)
}
System.out.println("Salary of not less than " + y + " hryvnias through " + years + " years.");
System.out.println("In particular " + nx + " hryvnias");
}
public static void main(String[] args) {
double score;
double curvePercentage;
Scanner keyboard = new Scanner(System.in);
System.out.println("Enter the student's raw numeric score: ");
score = keyboard.nextDouble();
System.out.println("Enter the curve percentage: ");
curvePercentage = keyboard.nextDouble();
// Create a CurvedActivity object
CurvedActivity curvedExam = new CurvedActivity(curvePercentage);
// Set the exam score
curvedExam.setScore(score);
// Display the rawScore
System.out.println("The raw score is " + curvedExam.getRawScore() + " points");
// Display the curved score.
System.out.println("The curved scored is " + curvedExam.getScore());
// Display the exam grade.
System.out.println("The exam grade is " + curvedExam.getGrade());
}
public String handle(File directory) {
File averageRMS = new File(directory, MAX_FIELD_TXT);
if (!averageRMS.exists()) return null;
try {
List<String> lines = FileUtils.readLines(averageRMS);
int count = 0;
double rmsSum = 0.0;
for (String line : lines) {
if (!line.startsWith("%")) {
Scanner scanner = new Scanner(line);
scanner.nextDouble();
rmsSum += scanner.nextDouble();
count++;
}
}
return "" + (rmsSum /= count);
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
while (in.hasNextDouble()) {
double totalCable = in.nextDouble();
int n = in.nextInt();
// Get vertices
Map<String, Integer> map = new HashMap<String, Integer>();
for (int i = 0; i < n; i++) {
map.put(in.next(), i);
}
// Get edges
Edge[] edges = new Edge[in.nextInt()];
for (int i = 0; i < edges.length; i++) {
Edge e = new Edge(map.get(in.next()), map.get(in.next()), in.nextDouble());
edges[i] = e;
}
// Get MST length
double cableLen = 0;
for (Edge e : kruskals(n, edges)) {
cableLen += e.weight;
}
if (Double.compare(totalCable, cableLen) < 0) {
System.out.println("Not enough cable");
} else {
System.out.printf("Need %.1f miles of cable\n", cableLen);
}
}
}
/*
* El ordenador de nuestro coche calcula los kilómetros que nos quedan antes de repostar. Crea un programa que pida:
* tamaño del depósito (en litros), porcentaje del depósito que está lleno y litros de consumo por 100kms.
* El programa mostrará los kilómetros que quedan de autonomía. Si quedan menos de 30 kilómetros mostrará un aviso
* de que hay que repostar porque estamos usando la reserva.
*/
public static void main(String[] args) {
Scanner teclado = new Scanner(System.in);
double autonomia = 0;
double litros = 0;
System.out.println("Por favor introduzca la capacidad en LITROS de su depósito.");
double depositoLitros = teclado.nextDouble();
System.out.println(
"Por favor introduzca (como NÚMERO REAL) el porcentaje del depósito ocupada por combustible");
double depositoPorcentaje = teclado.nextDouble();
System.out.println(
"Por favor introduzca el consumo medio EN LITROS de combustible cada 100 Km");
double consumoMedio = teclado.nextDouble();
teclado.close();
litros = depositoLitros * (depositoPorcentaje * 1 / 100);
autonomia = (litros * 100) / consumoMedio;
System.out.printf("La autonomia de su vehículo es de: %.2f Kilómetros %n%n", autonomia);
if (autonomia < 30) {
System.out.println("------------AVISO DE REPOSTAJE------------");
System.out.println("Su autonomía es inferior a 30 Kilómetros");
}
}
public void exec() throws Exception {
DoubleObj a = new DoubleObj(), b = new DoubleObj(), c = new DoubleObj(), d = new DoubleObj();
DoubleObj score = new DoubleObj();
CharObj grade = new CharObj();
output +=
(String.format(
"Enter thresholds for A, B, C, D\nin that order, decreasing percentages > "));
a.value = scanner.nextDouble();
b.value = scanner.nextDouble();
c.value = scanner.nextDouble();
d.value = scanner.nextDouble();
output += (String.format("Thank you. Now enter student score (percent) >"));
score.value = scanner.nextDouble();
if (score.value >= a.value) {
grade.value = 'A';
} else if (score.value >= b.value) {
grade.value = 'B';
} else if (score.value >= c.value) {
grade.value = 'C';
} else if (score.value >= d.value) {
grade.value = 'D';
} else {
grade.value = 'F';
}
if (grade.value != 'F') {
output += (String.format("Student has an %c grade\n", grade.value));
} else {
output += (String.format("Student has failed the course\n"));
}
if (true) return;
;
}
public void action() {
System.out.println("Enter first number");
Scanner sc = new Scanner(System.in);
double firstNumber = sc.nextDouble();
System.out.println("Enter second number");
double secondNumber = sc.nextDouble();
System.out.println("Enter action symbol");
char action = sc.next().charAt(0);
if (action == '/') {
quotient = firstNumber / secondNumber;
System.out.println(firstNumber / secondNumber);
}
if (action == '+') {
sum = firstNumber + secondNumber;
System.out.println(firstNumber + secondNumber);
}
if (action == '-') {
difference = firstNumber - secondNumber;
System.out.println(firstNumber - secondNumber);
}
if (action == '*') {
product = firstNumber * secondNumber;
System.out.println(firstNumber * secondNumber);
}
}
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("Insert your weight in pounds:");
double weightPounds = input.nextDouble();
System.out.println("Instert feet:");
double heightFeet = input.nextDouble();
System.out.println("Insert inches:");
double heightInches = input.nextDouble();
double weightKg = weightPounds * 0.45359237;
double heightM = heightInches * 0.0254 + heightFeet * 0.3048;
double bmi = weightKg / Math.pow(heightM, 2);
System.out.println("Your BMI is " + bmi + ".");
if (bmi >= 30.0) System.out.println("You're obese");
else if (bmi > 25.0) System.out.println("You're overweight.");
else if (bmi >= 18.5) System.out.println("Your weight is normal.");
else System.out.println("You're underweight.");
}
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("Enter your first name");
String fname = input.next();
System.out.println("Enter your last Name");
String lname = input.next();
System.out.println("Enter your gender ");
String gender = input.next();
System.out.println("Enter your month of birth");
int month = input.nextInt();
System.out.println("Enter your day of birth");
int day = input.nextInt();
System.out.println("Enter your year of birth");
int year = input.nextInt();
System.out.println("Enter your weight in kgs?");
double weight = input.nextDouble();
System.out.println("Enter your height metres");
double height = input.nextDouble();
HealthProfile prof = new HealthProfile(fname, lname, gender, month, day, year, weight, height);
prof.bmi();
prof.age();
prof.mhr();
prof.thr();
}
public static void main(String[] args) {
Scanner myScanner;
myScanner = new Scanner(System.in);
// Prompt the user for input
System.out.print("Enter the original cost of the check in the form xx.xx: ");
double checkCost = myScanner.nextDouble();
System.out.print(
"Enter the percentage tip that you wish to pay as a whole number (in the form xx): ");
double tipPercent = myScanner.nextDouble();
tipPercent /= 100;
System.out.print("Enter the number of people who went out to dinner: ");
int numPeople = myScanner.nextInt();
double totalCost;
double costPerPerson;
int dollars, // whole dollar amount of cost
dimes,
pennies; // for storing digits
// to the right of the decimal point
// for the cost$
totalCost = checkCost * (1 + tipPercent);
costPerPerson = totalCost / numPeople;
// get the whole amount, dropping decimal fraction
dollars = (int) costPerPerson;
// get dimes amount, e.g.,
// (int)(6.73 * 10) % 10 -> 67 % 10 -> 7
// where the % (mod) operator returns the remainder
// after the division: 583%100 -> 83, 27%5 -> 2
dimes = (int) (costPerPerson * 10) % 10;
pennies = (int) (costPerPerson * 100) % 10;
System.out.println("Each person in the group owes $" + dollars + "." + dimes + pennies);
}
public void bankAccount() {
// declare variables
double balance, deposit, withdrawal;
int months;
// prompt for starting balance
System.out.print("Starting Balance: ");
balance = sc.nextDouble();
// loop through months
months = 1;
do {
// input deposit and withdrawal
System.out.format("\nMonth #%-5dDeposits: ", months);
deposit = sc.nextDouble();
if (deposit != -1) {
System.out.format("%12sWithdrawals: ", " ");
withdrawal = sc.nextDouble();
// calculate new balance
balance += deposit;
balance -= withdrawal;
months++;
}
} while (balance >= 0 && deposit != -1);
// output final balance
System.out.format("\nYou have $%.2f left.", balance);
// catch extra return
sc.nextLine();
}
public TrainingData(String filePath) throws IOException {
System.out.println("Starting Reading Data");
Scanner st = new Scanner(new BufferedReader(new FileReader(filePath)));
this.numberOfSamples = st.nextInt();
int originalFeatures = st.nextInt();
int extraFeatures = (originalFeatures * (originalFeatures - 1)) / 2;
this.numberOfFeatures = originalFeatures + extraFeatures;
X = new double[numberOfSamples][1 + numberOfFeatures];
y = new double[numberOfSamples];
average = new double[1 + numberOfFeatures];
range = new double[1 + numberOfFeatures];
for (int i = 0; i < numberOfSamples; i++) {
X[i][0] = 1;
double numberOfFollowers = st.nextDouble();
X[i][1] = numberOfFollowers;
int j = 2;
for (; j < 1 + numberOfFeatures - extraFeatures; j++) {
X[i][j] = st.nextDouble();
}
for (int k = 1; k <= originalFeatures; k++) {
for (int l = k + 1; l <= originalFeatures; l++) {
X[i][j++] = X[i][k] * X[i][l];
}
}
y[i] = st.nextDouble();
}
System.out.println("Done Reading Data");
System.out.println("Starting Normalization");
normalizeFeatures();
System.out.println("Done Normalizing Data");
}
public void parseExpression(String expression) {
this.expression = expression;
input = new Scanner(this.expression);
var1 = input.nextDouble();
operation = input.next();
var2 = input.nextDouble();
}
public static void main(String[] args) {
Scanner input = new Scanner(System.in); // Creates a scanner
double numb1; // First Number input
double numb2; // Second Number input
double numb3; // Third Number input
double sum; // Sum of numb1, numb2 and numb3
double avg; // Final Average
System.out.print("Enter the first integer:"); // Asks user for first number
numb1 = input.nextDouble(); // Reads the fist number from the user
System.out.print("Enter the second integer:"); // Asks user for the second number
numb2 = input.nextDouble(); // Reads the second number from the user
System.out.print("Enter the third integer:"); // Asks user for the third number
numb3 = input.nextDouble(); // Reads the third number from the user
sum = numb1 + numb2 + numb3; // adds all the numbers and is stored in sum
avg = sum / 3; // Takes the average of all three numbers and stores in avg
System.out.printf("The final average of the integers is %g\n", avg); // displays the average
} // end method main
public static void main(String[] args) {
// initial values
double accountBalance = 2555.75;
double accountDeposit;
double accountWithdrawal;
int userChoice;
// Scanner object for user input
Scanner scnr = new Scanner(System.in);
// Prompt user to enter transaction type of Balance, Deposit, or Withdrawal
System.out.println("Welcome to Bank of Belgrade");
System.out.println("Your initial account balance is " + accountBalance);
System.out.println("Enter your choice of transaction: ");
System.out.println("1. Withdraw Funds");
System.out.println("2. Deposit Funds");
System.out.println("3. Account Balance");
userChoice = scnr.nextInt();
// Few options to choose
switch (userChoice) {
// case for withdrawing amounts
case 1:
System.out.println("Enter amount for withdrawal: ");
accountWithdrawal = scnr.nextDouble();
if (accountWithdrawal > accountBalance) {
System.out.println("Insufficient funds");
} else {
accountBalance = accountBalance - accountWithdrawal;
System.out.println("Your current balance is " + accountBalance);
}
break;
// case for depositing amounts
case 2:
System.out.println("Enter amount that you want to deposit ");
accountDeposit = scnr.nextDouble();
if (accountDeposit <= 0) {
System.out.println("You must deposit an amount greater than 0");
} else {
accountBalance = accountBalance + accountDeposit;
System.out.println("Your current balance is " + accountBalance);
}
break;
// case for checking your balance
case 3:
System.out.println("Your balance is " + accountBalance);
break;
// default for preventing endless looping
default:
System.out.println("Incorrect Choice Human, Goodbye");
break;
}
}
public static void main(String[] args) {
// Create scanner object.
Scanner input = new Scanner(System.in);
// Input
System.out.print(
"Please enter one side of your right triangle that is not " + "the hypotenuse: ");
double number1 = input.nextDouble();
System.out.print(
"Please enter the other side of your right triangle that " + "is not the hypotenuse: ");
double number2 = input.nextDouble();
// Calculation.
double calc1 = (number1 * number1) + (number2 * number2);
double hypotenuse = Math.sqrt(calc1);
// Output
System.out.println(
"The square of "
+ number1
+ " + the square of "
+ number2
+ " equals "
+ calc1
+ " which is the square of "
+ hypotenuse
+ ", which is the hypotenuse.");
}
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter the sides of Triangle: ");
double a = sc.nextDouble();
double b = sc.nextDouble();
double c = sc.nextDouble();
Triangle tri1 = new Triangle(a, b, c);
double res = tri1.area();
if (a + b > c && b + c > a && c + a > b) {
System.out.println("The area of triangle is: " + res);
} else {
System.out.println("This is not Triangle!");
}
System.out.println("Enter the sides of another Triangle: ");
double e = sc.nextDouble();
double f = sc.nextDouble();
double g = sc.nextDouble();
Triangle tri2 = new Triangle(e, f, g);
res = tri2.area();
if (a + b > c && b + c > a && c + a > b) {
System.out.println("The area of another triangle is: " + res);
} else {
System.out.println("This is not Triangle!");
}
sc.close();
}
public static void main(String[] args) throws IOException {
System.out.println("Программа \"Консольный калькулятор\"");
System.out.println(
"Поддерживаемые операции: сложение (+), вычитание (-), умножение (*) и деление (/)");
Scanner scanner = new Scanner(System.in);
System.out.print("Введите знак операции: ");
String operation = scanner.nextLine();
System.out.print("Введите первое число: ");
double valueOne = scanner.nextDouble();
System.out.print("Введите второе число: ");
double valueTwo = scanner.nextDouble();
if (operation.equals("+")) {
System.out.println("Результат операции сложение: " + (valueOne + valueTwo));
} else if (operation.equals("-")) {
System.out.println("Результат операции вычитание: " + (valueOne - valueTwo));
} else if (operation.equals("*")) {
System.out.println("Результат операции умножение: " + (valueOne * valueTwo));
} else if (operation.equals("/")) {
System.out.println("Результат операции деление: " + (valueOne / valueTwo));
} else {
System.out.println("Извините, но операция \"" + operation + "\" не поддерживается.");
}
}
public static void decideOnShape(String shape) {
Scanner myScanner = new Scanner(System.in);
double area = 0;
if (shape.equals("rectangle")) {
// ask important things, then run correct calc.
System.out.println("What is the width?");
double width = myScanner.nextDouble();
System.out.println("What is the hight?");
double hight = myScanner.nextDouble();
area = rectArea(width, hight);
} else if (shape.equals("triangle")) {
// ask important things, then run correct calc.
System.out.println("What is the bade length?");
double width = myScanner.nextDouble();
System.out.println("What is the hight?");
double hight = myScanner.nextDouble();
area = triArea(width, hight);
} else {
// ask important things, then run correct calc.
System.out.println("What is the radius?");
double radius = myScanner.nextDouble();
area = cirArea(radius);
}
System.out.println("The area is " + area);
}