Calculator

public class calculator{
public static void main(String [] args){
float x=0,k=0,r=0;
char l;
SimpleInput y;
y=new SimpleInput();
x=y.getFloat("Enter Number");
l=y.getChar("To add='a',To subtract='s',To multiply='m',To divide='d'");
k=y.getFloat("Enter Number");
if(l=='a'){
r=x+k;
}
else if(l=='s'){
r=x-k;}
else if(l=='m'){
r=x*k;}
else if(l=='d'){
r=x/k;}
System.out.println(r);
}
}