Calculator using Java

Harsh Jaiswal posted an update — Feb 08, 2023 12:08 AM EST

import java.util.Scanner; class Main { public static void main(String[] args) { char operator; Double number1, number2, result; // create an object of Scanner class Scanner input = new Scanner(System.in); // ask users to enter operator System.out.println("Choose an operator: +, -, , or /"); operator = input.next().charAt(0); // ask users to enter numbers System.out.println("Enter first number"); number1 = input.nextDouble(); System.out.println("Enter second number"); number2 = input.nextDouble(); switch (operator) { // performs addition between numbers case '+': result = number1 + number2; System.out.println(number1 + " + " + number2 + " = " + result); break; // performs subtraction between numbers case '-': result = number1 - number2; System.out.println(number1 + " - " + number2 + " = " + result); break; // performs multiplication between numbers case '': result = number1 * number2; System.out.println(number1 + " * " + number2 + " = " + result); break; // performs division between numbers case '/': result = number1 / number2; System.out.println(number1 + " / " + number2 + " = " + result); break; default: System.out.println("Invalid operator!"); break; } input.close(); } }

Harsh Jaiswal started this project — Feb 08, 2023 12:04 AM EST

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