public class Test{
    public static void main(String[] args) throws Exception{

        Thread t1 = new Thread(new ThreadTest(10));
        t1.start();    
        Thread t2 = new Thread(new ThreadTest(20));
        t2.start();
        Thread t3 = new Thread(new ThreadTest(30));
        t3.start();
        Thread t4 = new Thread(new ThreadTest(40));
        t4.start();
        Thread t5 = new Thread(new ThreadTest(50));
        t5.start();
    }
}
class ThreadTest implements Runnable{
    public static int i = 0;
    
    public ThreadTest(int i){
        ThreadTest.setI(i);
    }

    public void run(){
        System.out.println(ThreadTest.getI());
    }

    public static int getI() {
        return i;
    }

    public static void setI(int i) {
        ThreadTest.i = i;
    }
}