java - 理解简单的计数器代码

Question

我正在大学学习 Java 初学者类(class)，我很困惑它是如何编译/执行的 以下是代码:

public class Counter {
    private int counter;
    private int end;

    public Counter(int start, int end) {
        this.counter = start;
        this.end = end;
    }

    public String toString() {
        return "[Counter counter=" + counter + " end=" + end + "]";
    }

    public int getCounter() {
        return counter;
    }

    public void count(int increment) {
        if (counter < end) {
            counter += increment;
        }
    }

    public void count() {
        count(1);
    }
}

其他类

public class CounterProgram {

    private Counter counter;

    public void init() {
        counter = new Counter(1, 3);
    }

    public void run() {
        System.out.println(counter);
        counter.count();
        System.out.println(counter);
        counter.count();
        System.out.println(counter);
        counter.count();
        System.out.println(counter);
    }

    public static void main(String[] args) {
        CounterProgram counterProgram = new CounterProgram();
        counterProgram.init();
        counterProgram.run();
    }
}

我不确定 count(1) 在方法 public void count 中的含义有人能解释一下吗？感谢您的宝贵时间!

Answer 1

count(1) 是对带有参数 1 (int) 的 count 方法的调用:

public void count(int increment)