подскажите, как решить?
package com.javarush.task.task06.task0612;
/*
Калькулятор
*/
public class Calculator {
public static int plus(int a, int b) {
int c = a + b;
return c;
}
public static int minus(int a, int b) {
int d = a - b;
return d;
}
public static int multiply(int a, int b) {
int e = a * b;
return e;
}
public static double division(int a, int b) {
double l = a / b;
return l;
}
public static double percent(int a, int b) {
double percent = (double)(a*b)/100;
return percent;
}
public static void main(String[] args) {
}
}