if(条件){System.out.println("hello")}else{System.out.println("wrold")}同时输出hello wrold

package com.thread;

public class second extends Thread{
    public static void main(String[] args) {
        /**
         * if(条件){
         *     System.out.println("hello");
         * }else{
         *     System.out.println("wrold");
         * }
         * 输出：hello wrold
         */
        //方法一
//        if(System.out.printf("hello").equals("")){
//            System.out.println("hello");
//        }else{
//            System.out.println(" world");
//        }
        
        //方法二:用多线程
        if(new Thread(){
            {
                this.start();  //在一个静态块中启动一个线程
            }
            @Override
            public void run() {
                System.out.println(" wrold");
            }
        }.isAlive()){
            System.out.print("hello");
        }else{
            System.out.println("wrold");
        }
    }
}