java - 使用测试类查看两个整数值是否适合参数

Question

如果两个值都设置为0到29之间的值，如果参数中提供的数字是这两个数字的和，并且参数号和实例号相同。

这是我到目前为止编写的代码:

public class TwoNumbers {
      private int firstnum = 0;
      private int secondnum = 0;

//Constructor that initialize the first and second number
//to a value of 0

    public TwoNumbers()
    {
            firstnum = 0;
            secondnum = 0;
    }

    public int getFirstNum(){
            return firstnum;
    }
    public int getSecondNum(){
            return secondnum;
    }


    public boolean setFirstNum (int firstnum){
            if (firstnum >= 0 && firstnum <=29){
                    return true;
            }
            else {
                    return false;
            }
    }
    public boolean setSecondNum (int secondnum)
    {

            if (secondnum >= 0 && secondnum <=29){
                    return true;
            }
            else {
                    return false;
            }
    }
    public boolean checkSum (int sum){
            if (sum == firstnum + secondnum){
                    return true;
            }
            else {
                    return false;
            }

    }
    public boolean equals (int numbers1) {
            if (firstnum == secondnum){
                    return true;
            }
            else{
                    return false;
            }
            }
    }

Answer 1

您的 setter 没有设置新值。

public boolean setFirstNum (int newValue){
            firstnum = newValue;
            if (firstnum >= 0 && firstnum <=29){

                return true;
        }
        else {
                return false;
        }
}
public boolean setSecondNum (int newValue)
{
        secondnum = newValue;
        if (secondnum >= 0 && secondnum <=29){
                return true;
        }
        else {
                return false;
        }

测试 14 和 15 不检查数字的值。
return numbers1.equals(numbers2); 应该改为
返回 numbers1.firstNumber == numbers2.firstNumber && numbers1.secondNumber == numbers2.secondNumber;