Compute interface and its implementation in java

1. Description of the problem

(1) Define the interface Compute.
The interface methods are: int sum( ), to find the sum of two integers; int max( ), to find the larger number among the two integers.
(2) Define the ComputeClass class.
The ComputeClass class is required to implement the Compute interface; two private properties a and b with int type provide a parameterized construction method ComputeClass (int a, int b). The sum() method returns the sum of attributes a and b, and max returns the larger of attributes a and b.

import java.util.Scanner;

public class ComputeTester {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        ComputeClass cc = new ComputeClass(a,b);
        System.out.println("两数之和为：" + cc.sum());
        System.out.println("较大值为：" + cc.max());
    }
}

/* 定义接口Compute */
interface Compute{
    int sum();
    int max();
}
/* 定义Compute接口的实现类ComputeClass */
class ComputeClass implements Compute {
    private int a;
    private int b;

    public ComputeClass(int a, int b) {
        this.a = a;
        this.b = b;
    }

    @Override
    public int sum() {
        return a + b;
    }

    @Override
    public int max() {
        return a > b ? a : b;
    }
}