class InnerThread1{
    private int countDown=5;
    private Inner inner;
    private class Inner extends Thread{
        Inner(String name) {
            super(name);
start();
}

        @Override
public void run() {
            while(true){
                try {
                    System.out.println(this
 
);
                    if(--countDown==0)
                        return;
TimeUnit.MILLISECONDS.sleep(10);
} catch (InterruptedException e) {
                    System.out.println("interrupted");
}
            }
        }
        public String toString(){
            return getName()+":"+countDown;
}
    }
    public 
 
InnerThread1(String name){
        inner=new Inner(name);
}
}
class InnerThread2{
    private int countDown=5;
    private Thread t;
    public InnerThread2(String name){
        t=new Thread(name){
            @Override
public void run() {
                while(true){
                    try {
                        System.out
 
.println(this);
                        if(--countDown==0)
                            return;
TimeUnit.MILLISECONDS.sleep(10);
} catch (InterruptedException e) {
                        System.out.println("sleep() interrupted");
}
                }
            }
            public String toString(){
                return getName()+":"+countDown;
}
        };
t.start();
}
}
class InnerRunnable1{
    private int countDown=5;
    private Inner inner;
    private class Inner implements Runnable{
        Thread t;
Inner(String name){
            t=new Thread(this,name);
t.start();
}
        @Override
public void run() {
                try {
                    while(true) {
                        System.out.println(this);
                        if (--countDown == 0)
                            return;
TimeUnit.MILLISECONDS.sleep(10);
}
                } catch (InterruptedException e) {
                    System.out.println("sleep() interrupted");
}
        }
        public String toString(){
            return t.getName()+": "+countDown;
}
    }
    public InnerRunnable1(String name){
        inner=new Inner(name);
}
}
class InnerRunnable2{
    private int countDown=5;
    private Thread t;
    public InnerRunnable2(String name){
        t=new Thread(new Runnable() {
            @Override
public void run() {
                while(true){
                    System.out.println(this);
                    if(--countDown==0)
                        return;
                    try {
                        TimeUnit.MILLISECONDS.sleep(10);
} catch (InterruptedException e) {
                        System.out.println("sleep() interrupted");
}
                }
            }
            public String toString(){
                return Thread.currentThread().getName()+": "+countDown;
}
        },name);
}
}
class ThreadMethod{
    private int countDown=5;
    private Thread t;
    private String name;
    public ThreadMethod(String name){
        this.name=name;
}
    public void runTask(){
        if(t==null){
            t=new Thread(name){
                @Override
public void run() {
                    while(true){
                        System.out.println(this);
                        if(--countDown==0)
                            return;
                        try {
                            TimeUnit.MILLISECONDS.sleep(10);
} catch (InterruptedException e) {
                            System.out.println("sleep() interrupted");
}
                    }
                }
                public String toString(){
                    return getName()+": "+countDown;
}
            };
t.start();
}
    }
}
public class ThreadVariations {
    public static void main(String[] args){
        new InnerThread1("InnerThread1");
        new InnerThread2("InnerThread2");
        new InnerRunnable1("InnerRunnable1");
        new InnerRunnable2("InnerRunnable2");
        new ThreadMethod("ThreadMethod").runTask();
}
}