counter.java

来自「jsp 应用开发技术光盘 是《jsp应用开发技术》这本书的源代码」· Java 代码 · 共 24 行

package util;

public class Counter {
    private int counter;

    public Counter() {
        counter = 0;
    }

    public synchronized int getCounter() {
        return counter;
    }

    public synchronized int setCounter(int c) {
        counter = c;

        return counter;
    }

    public synchronized int incCounter() {
        return (++counter);
    }
}