62 lines
1.9 KiB
Java
62 lines
1.9 KiB
Java
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import java.util.InputMismatchException;
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import java.util.Scanner;
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import java.util.Objects;
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public class Calculator {
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public static void main(String[] args) {
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try {
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while (true) {
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int number1, number2;
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int result = 0;
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String operator;
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System.out.println("Operations are: “add”, “sub”, “mul”, “div”");
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System.out.println("Enter first number:");
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Scanner scanner = new Scanner(System.in);
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if (scanner.hasNextInt()) {
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number1 = scanner.nextInt();
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System.out.println("Enter second number:");
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number2 = scanner.nextInt();
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System.out.println("Enter an operation:");
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operator = scanner.next();
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switch (operator) {
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case "add":
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result = number1 + number2;
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break;
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case "sub":
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result = number1 - number2;
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break;
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case "mul":
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result = number1 * number2;
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break;
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case "div":
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result = number1 / number2;
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break;
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default:
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System.out.println("wrong input");
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break;
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}
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System.out.println("Result: " + result);
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} else if (Objects.equals(scanner.next(), "q")) {
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break;
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} else {
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System.out.println("You're input is invalid. Chose a number.");
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}
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}
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} catch (InputMismatchException e) {
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System.err.println(e);
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}
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}
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}
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