Answer to Question #253549 in Java | JSP | JSF for pino

Question

Using a switch statement, write a program that prompts the user for a numeric code and two operands. The numeric codes of 1, 2, 3, and 4 represents addition, subtraction, multiplication, and division respectively. Before division, your program should check whether the second operand is not zero. If it is, it should display “Division by zero not allowed” to the screen.

                     

Answer 1

import java.util.Scanner;


public class App {


	public static void main(String[] args) {


		Scanner input = new Scanner(System.in);
		System.out.print("Code: ");
		int code = input.nextInt();
		System.out.print("Operand 1: ");
		int operand1 = input.nextInt();
		System.out.print("Operand 2: ");
		int operand2 = input.nextInt();
		double result;
		switch (code) {
		case 1:// addition
		{
			result = operand1 + operand2;
			System.out.println("Result = " + result);
		}
			break;
		case 2:// subtraction
		{
			result = operand1 - operand2;
			System.out.println("Result = " + result);
		}
			break;
		case 3:// multiplication
		{
			result = operand1 * operand2;
			System.out.println("Result = " + result);
		}
			break;
		case 4:// division
		{
			if (operand2 != 0) {
				result = operand1 / operand2;
				System.out.println("Result= " + result);
			} else {
				System.out.println("Division by zero not allowed");
			}
		}
			break;


		}


		input.close();
	}
}