JAVA中多线程的一种实现及应用

package thread;

/**
*
* @author Administrator
* JAVA中如果要同时执行两个方法则要用到多线程
* 本例中，要打印数字的同时也要打印字母，小例子
*/
public class TestThread {

public static void main(String[] args) {
// TODO Auto-generated method stub
Thread th1 = new PrintNum();
Thread th2 = new PrintChar();
th1.start();
th2.start();
}

}
//打印1-100的数字
class PrintNum extends Thread{
public void show(){
for (int i = 0; i <= 100; i++) {
System.out.print(i);
if(i%10 == 0)
System.out.println();
}
}

@Override
public void run() {
// TODO Auto-generated method stub
super.run();
show();
}

}

//打印a-z的字母
class PrintChar extends Thread{
public void show(){
for (int i = 65; i <= 90; i++) {
System.out.print((char)i);
}
}

@Override
public void run() {
// TODO Auto-generated method stub
super.run();
show();
}
}

例子二：泡茶例子，多线程主要是在烧水的同时可以洗杯子package thread;public class TestPaoCha {public static void main(String[] args) {// TODO Auto-generated method stubSystem.out.println("客人来了");Water water = new Water();water.start();Washcup washcup = new Washcup();washcup.start();System.out.println("请喝茶");}}//烧开水class Water extends Thread{public void burn(){for (int i = 0; i <= 10; i++) {System.out.println("正在烧水第" + i +"分钟");try {Thread.sleep(200);} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();}}System.out.println("水烧开了");}@Overridepublic void run() {// TODO Auto-generated method stubsuper.run();this.burn();}}//洗茶杯class Washcup extends Thread{public void wash(){for (int i = 0; i <= 10; i++) {System.out.println("正在洗第"+i+"个茶杯");try {Thread.sleep(100);} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();}}System.out.println("茶杯都洗好了");}@Overridepublic void run() {// TODO Auto-generated method stubsuper.run();this.wash();}}例子三：做饭，在炖汤的同时可以炒菜package thread;public class MakeFood {public static void main(String[] args) {// TODO Auto-generated method stubThread th1 = new MackeSoup();Thread th2 = new MakeDish();th1.start();th2.start();}}class MackeSoup extends Thread{public void mackEggsoup(){System.out.println("煮蛋蛋汤");for (int i = 1; i <= 10; i++) {try {Thread.sleep(1000);} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();}System.out.println("煮蛋蛋汤"+i+"分钟");}}@Overridepublic void run() {// TODO Auto-generated method stubsuper.run();this.mackEggsoup();}}class MakeDish extends Thread{public void makeDisk(){System.out.println("正在煮菜");for (int i = 1; i <= 4; i++) {try {Thread.sleep(300);} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();}System.out.println("正在煮第"+i+"个菜");}}@Overridepublic void run() {// TODO Auto-generated method stubsuper.run();this.makeDisk();}}