java创建线程的三种方式简要。

1.继承Thread类。重写里面的run()方法。
2.实现Runnable接口，重写run()方法。
3.实现Callable()接口，重写call()方法。
package edu.sdut.thread;import java.util.concurrent.Callable;import java.util.concurrent.FutureTask;class Thread1 implements Callable<String>{@Overridepublic String call() throws Exception {for(int i=0;i<10;i++){System.out.println(Thread.currentThread().getName()+" "+i);}return null;}}public class ThreadDemo01 {public static void main(String[] args) {FutureTask<String> f1 = new FutureTask<>(new Thread1());FutureTask<String> f2 = new FutureTask<>(new Thread1());FutureTask<String> f3 = new FutureTask<>(new Thread1());Thread t1 = new Thread(f1);Thread t2 = new Thread(f2);Thread t3= new Thread(f3);t1.start();t2.start();t3.start();}