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java书上所有代码 java代码长什么样

IT技术代码

java线程的经典代码package threadgroup;
class ThreadDemo3 extends Thread {
private String name;
private int delay;
public ThreadDemo3(String sname, int i_delay) {
name = sname;
delay = i_delay;
}
public void run() {
try {
sleep(delay);
} catch (InterruptedException e) {
}
System.out.println("多线程测试！\n" + name + "\n" + delay);
}
}
public class testMyThread {
public static void main(String[] args) {
ThreadDemo3 th1,th2,th3;
th1 = new ThreadDemo3("线程1", (int) (Math.random() * 900));
th2 = new ThreadDemo3("线程2", (int) (Math.random() * 900));
th3 = new ThreadDemo3("线程3", (int) (Math.random() * 900));
th1.start();
th2.start();
th3.start();
}
}
package threadgroup;
public class threadDemo {
public static void main(String[] args) {
Thread t = Thread.currentThread();
t.setName("你好吗？");
System.out.println("正在进行的Thread是：" + t);
try {
for (int i = 0; i5; i++) {
System.out.println("我不叫穆继超" + i);
Thread.sleep(3000);
}
} catch (Exception e) {
// TODO: handle exception
System.out.println("Thread has wrong" + e.getMessage());
}
}
}
package threadgroup;
public class threadDemo2 implements Runnable {
public threadDemo2() {
Thread t1 = Thread.currentThread();
t1.setName("第一个主进程");
System.out.println("正在运行" + t1);
Thread t2 = new Thread(this, "");
System.out.println("在创建一个进程");
t2.start();
try {
System.out.println("使他进入第一个睡眠状态");
Thread.sleep(2000);
} catch (InterruptedException e) {
System.out.println("Thread has wrong" + e.getMessage());
}
System.out.println("退出第一个进程");
}
public void run() {
try {
for (int i = 0; i5; i++) {
System.out.println("进程" + i);
Thread.sleep(3000);
}
} catch (InterruptedException e) {
// TODO: handle exception
【java书上所有代码 java代码长什么样】System.out.println("Thread has wrong" + e.getMessage());
}
System.out.println("退出第二个进程");
}
public static void main(String[] args) {
new threadDemo2();
}
}
java代码注释(所有代码)注释比较重点的也行多注java书上所有代码了些控制流程 ， 希望java书上所有代码我的注释能够对你有帮助java书上所有代码：
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class GoodLucky extends JFrame implements ActionListener{
JTextField tf = new JTextField(); //实例化一个文本域
//设置两个按钮
JButton b1 = new JButton("开始");
JButton b2 = new JButton("停止");
boolean isGo = false;
//构造函数
public GoodLucky(){
b1.setActionCommand("start");//在开始按钮上设置一个动作监听 start
JPanel p = new JPanel(); //实例化一个可视化容器
//将两个按钮添加到可视化容器上面，用add方法
p.add(b1);
p.add(b2);
//在两个按钮上增加监听的属性,自动调用下面的监听处理方法actionPerformed(ActionEvent e)，如果要代码有更好的可读性，可用内部类实现动作
//监听处理 。
b1.addActionListener(this);
b2.addActionListener(this);
//将停止按钮设置为不可编辑（即不可按的状态）
b2.setEnabled(false);
this.getContentPane().add(tf,"North"); //将上面的文本域放在面板的北方，也就是上面（上北下南左西右东）
this.getContentPane().add(p,"South"); //将可视化容器pannel放在南边，也就是下面

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