No enclosing instance of type E is accessible. Must qualify the allocation with an enclosing

package com.thread;

public class Thread01 {
    public class Thread1 extends Thread{
        private String name;
        public Thread1(String name){
            this.name = name;
        } 
        public void run() {
            for (int i = 0; i < 5; i++) {
                System.out.println(name+"运行:"+i);
                try {
                    sleep((int) Math.random()*10);
                } catch (InterruptedException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        }
        
    }
    
    public static void main(String[] args){
        Thread1 thread02 = new Thread1("A");
        Thread1 thread02 = new Thread1("B");
        
    }
}