Accessing a thread from a main class, please help!

Question

Hi, I have a thread, T1, that I need to access from my main class. I cannot use runnable, it's got to be done with extands thread. I can start it alright, but I cannot stop it;
MAIN CLASS
public class Uppgift1 {
public static void main(String args[]) throws InterruptedException {
// Start Thread 1
     Thread trad1 = new T1( );
     trad1.start( );
     //Wait for 5 seconds
     Thread.sleep(5000);
     //Stop the Thread
     trad1.stopIt();
public class T1 extends Thread {
     boolean go = true;
public void run ( ) {
while(go){
     System.out.println("T1: Trad 1");
try{
Thread.sleep(1000);
} catch( InterruptedException e ) {
public void stopIt(){
go = false;
Why can't I run stopIt from my main class?
Please help me.

Answer 1

manswide wrote:
The reason I have to use Thread is that it's for a school thing; I guess I gotta learn to do it the bad way in order to learn why to love the good way later on.Good plan. Making mistakes is a fantastic learning tool
How do I declare a reference to my own class?
T1 t1 = new T1();