public class MyThread extends Thread {
    public MyThread(){
        System.out.println("konstruqtori");
    }

    public void run(){
        System.out.println("bar");
    }

    public void run(String s){
        System.out.println("baz");
    }
}

public class rasdabechdavs {

    public static void main(String[] args){
        MyThread t = new MyThread(){
            public void run(){
                System.out.println("foo");
            }
        };
        t.start();
    }

}