Java Switch Statement with User Input

Switch with input in Java Program

import java.io.*;

class arun

{

public Static void main(String args[]) throws IOException

{

DataInputStream in = new DataInputStream(System.in);

{

int a;

System.out.println("Enter the value of a is:");

a=Integer.parseInt(in.readLine());

switch(a)

{

case 1:

{

int b,c,d;

System.out.println("Enter the value of b and c is:");

b=Integer.parseInt(in.readLine());

c=Integer.parseInt(in.readLine());

d=b+c;

System.out.println("The value of d is:"+d);

break;

}

case 2:

{

int b,c,d;

System.out.println("The enter value of b and c is:");

b=Integer.parseInt(in.readLine());

c=Integer.parseInt(in.readLine());

d=b-c;

System.out.println("The value of d is:"+d);

break;

}

case 3:

{

int b,c,d;

System.out.println("Enter the value of b and c is:");

b=Integer.parseInt(in.readLine());

c=Integer.parseInt(in.readLine());

d=b*c;

break;

System.out.println("The value of d is:"+d);

}

case 4:

{

int b,c,d;

System.out.println("Enter the value of b and c is");

b=Integer.parseInt(in.readLine());

c=Integer.parseInt(in.readLine());

d=b/c;

break;

System.out.println("The value of d is:"+d);

}

default:

{

System.out.println("You entered the wrong number");

break;

}

}

}

}

}