clock.java

《j2me开发精解〉（詹健飞）CD-rom附带源码。用netbeans

package com.j2medev.chapter5.utility;

public class Clock {
    long time;
    
    long pausedTime;
    
    long lastTime;
    
    boolean pauseFlag;
    
    public void restart() {
        resume();
        lastTime = System.currentTimeMillis();
        time = 0;
    }
    
    public void resume() {
        lastTime = System.currentTimeMillis();
        pauseFlag=false;
    }
    
    public void pause() {
        getTime();
        pauseFlag = true;
    }
    
    public long getTime() {
        if (!pauseFlag) {
            long now = System.currentTimeMillis();
            time += now - lastTime;
            lastTime = now;
        }
        return time;
    }
    
}