线程创建方式

线程创建方式

​
package Thread;
​
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.FutureTask;
​
public class ThreadReview {
    public static void main(String[] args) {
     new Thread1().start();
     new Thread(new Thread2()).start();
        FutureTask<Integer> task= new FutureTask<Integer>(new Thread3());
        new Thread(task).start();
        Integer integer = null;
        try {
            integer = task.get();
        } catch (InterruptedException e) {
            e.printStackTrace();
        } catch (ExecutionException e) {
            e.printStackTrace();
        }
        System.out.println(integer);
    }
}
class Thread1 extends Thread{
​
    public void run() {
        System.out.println("创建线程一");
    }
​
}
class Thread2 implements Runnable{
​
    @Override
    public void run() {
        System.out.println("创建线程2");
    }
}
class Thread3 implements Callable<Integer>{
​
    @Override
    public Integer call() throws Exception {
        System.out.println("创建线程3");
        return 100;
    }
}