主线程和子线程

线程切换

//1、主线程新建子线程,子线程执行完后调用interface回调主线程,回调函数中代码跑在主线程还是子线程?
public class T803 {
public static void main(String[] args) {
//获得当前线程的名称 
        System.out.println("main:"+Thread.currentThread().getName()); 

        final TT tt=new TT(){
            @Override
public void finish() {
                System.out.println("finish:"+Thread.currentThread().getName());
            }

        };

new Thread(){
public void run() {
                System.out.println("new Thread run:"+Thread.currentThread().getName()); 
                tt.finish();
            };
        }.start();

    }
public interface TT{
void finish();
    }

}