多線程問題-新手求助關於Java多線程中啟動線程問題

新手求助關於Java多線程中啟動線程問題

public class Example15_1 {

/**
 * @param args
 */
public static void main(String[] args) {
    // TODO Auto-generated method stub
     SpeakHello speakHello;
     SpeakNinhao speakNinhao;
     speakHello = new SpeakHello();
     speakNinhao= new SpeakNinhao();
     speakHello.start();
     speakNinhao.start();
     for(int i=1;i<=5;i++){
      System.out.println("大家好"+i+"");
     }
     }

}
public class SpeakHello extends Thread {
public void run(){
for(int i=1;i<=7;i++){
System.out.println("hello"+i+"");
}
}
}
public class SpeakNinhao {
public void run(){
for(int i=1;i<=7;i++){
System.out.println("ninhao"+i+"");
}
}
}
speakNinhao.start();這個語句Myeclipse裡面報錯:The method start()is undefined for the type 'SpeakNinhao'.我發現即使在SpeakNinhao類裡面寫一個start()也不能通過編譯。誰知道如何改

最佳回答：

SpeakNinhao類沒有繼承Thread類