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  1. public class TestThreadTwice1 extends Thread{  
  2.  public void run(){  
  3.    System.out.println("running...");  
  4.  }  
  5.  public static void main(String args[]){  
  6.   TestThreadTwice1 t1=new TestThreadTwice1();  
  7.   t1.start();  
  8.   t1.start();  
  9.  }  
  10. }
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
Main.java:1: error: class TestThreadTwice1 is public, should be declared in a file named TestThreadTwice1.java
public class TestThreadTwice1 extends Thread{  
       ^
1 error
stdout
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Standard output is empty
https://ideone.com/om08JS
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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