Question

switchcase programs in java

Answer 1

Syntax : Switch Case in Java Programming. It is alternative to else-if ladder. Switch Case Syntax is similar to – C/C++ Switch. Switch allows you to choose a block of statements to run from a selection of code, based on the return value of an expression.

Answer 2

Answer:

Switch case statement program in Java

Explanation:

import java.util.Scanner;

public class Calculator {

public static void main(String[] args) {

Scanner reader = new Scanner(System.in);

System.out.print("Enter two numbers: ");

double first = reader.nextDouble();

double second = reader.nextDouble();

System.out.print("Enter an operator (+, -, *, /): ");

char operator = reader.next().charAt(0);

double result;

switch(operator)

{

case '+':

result = first + second;

break;

case '-':

result = first - second;

break;

case '*':

result = first * second;

break;

case '/':

result = first / second;

break;

default:

System.out.printf("Error! operator is not correct");

return;

}

System.out.printf("%.1f %c %.1f = %.1f", first, operator, second, result);

}

}