public
class Calculator
{
public static void main(String arg[])
{
int n1 =Integer.parseInt(arg[0]);
int n2 =Integer.parseInt(arg[1]);
int c =Integer.parseInt(arg[2]);
switch(c)
{
case 1:
System.out.println("Answer is: "+(n1+n2));
break;
case 2: System.out.println("Answer
is: "+(n1-n2));
break;
case 3:
System.out.println("Answer is: "+(n1*n2));
break;
case 4: if(n2==0)
{
System.out.println("This value is not
allowed.");
}
else
{
System.out.println("Answer is:
"+(n1/n2));
}
break;
default: {
System.out.println("Invalid
entry..");
}
}
}
}
