code block

public class Counter {
    // 定义一个私有变量来存储计数
    private int count;

    // 构造方法，初始化计数为0
    public Counter() {
        this.count = 0;
    }

    // 增加计数的方法
    public void increment() {
        this.count++;
    }

    // 获取当前计数的方法
    public int getCount() {
        return this.count;
    }

    // 主方法，用于测试计数器
    public static void main(String[] args) {
        // 创建一个Counter对象
        Counter counter = new Counter();

        // 增加计数并打印结果
        System.out.println("Initial count: " + counter.getCount());
        counter.increment();
        System.out.println("Count after one increment: " + counter.getCount());
        counter.increment();
        counter.increment();
        System.out.println("Count after three increments: " + counter.getCount());
    }
}