Designing Caluclator using Java

Problem:
Design a caluclator using java

Code:

import java.lang.*;
import java.util.*;
classCaluclator
{
public static void main(String[] args)
{
int a,b,c,d;
System.out.println("Menu\n1.Addition\n2.Substraction\n3.Multiplication\n4.Division\n5.exit\nEnter your choice");
Scanner s=new Scanner(System.in);
c=Integer.parseInt(s.nextLine());
switch(c)
{
case 1:
System.out.println("\nEnter the value of 1st  number");
a=Integer.parseInt(s.nextLine());
printf("\nEnter the value of 2nd  number");
b=Integer.parseInt(s.nextLine());
d=a+b;
System.out.println("Reullt after Addition="+d);
break;
case 2:
System.out.println("\nEnter the value of 1st  number");
a=Integer.parseInt(s.nextLine());
System.out.println("\nEnter the value of 2nd  number");
b=Integer.parseInt(s.nextLine());
d=a-b;
System.out.println("Reullt after Substraction="+d);
break;
case 3:
System.out.println("\nEnter the value of 1st  number");
a=Integer.parseInt(s.nextLine());
System.out.println("\nEnter the value of 2nd  number");b=Integer.parseInt(s.nextLine());
d=a*b;System.out.println("Reullt after Multiplication="+d);
break;
case 4:
System.out.println("\nEnter the value of 1st  number");
a=Integer.parseInt(s.nextLine());
System.out.println("\nEnter the value of 2nd  number");b=Integer.parseInt(s.nextLine());
d=a/b;System.out.println("Reullt after Division="+d);
break;
case 5:
exit(1);
default:
System.out.println("\nWrong Choice");
}
}