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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.reflect.*;
  5. import java.lang.*;
  6. import java.io.*;
  7.  
  8. /* Name of the class has to be "Main" only if the class is public. */
  9. class Ideone
  10. {
  11. 	public static class ThreadA extends Thread {
  12. 		public void run() {}
  13. 	}
  14. 	public static class ThreadB extends Thread {
  15. 		public void run() {}
  16. 	}
  17. 	public static <T extends Thread> T[] makeArray(Class<T> clazz, int n) throws Exception {
  18. 		T[] res = (T[]) Array.newInstance(clazz, n);
  19.         for (int i = 0 ; i < n ; i++) {
  20.             res[i] = clazz.newInstance();
  21.             res[i].start();
  22.         }
  23.         return res;
  24.     }
  25. 	public static void main (String[] args) throws java.lang.Exception
  26. 	{
  27. 		ThreadA[] aa = makeArray(ThreadA.class, 3);
  28. 		ThreadB[] bb = makeArray(ThreadB.class, 2);
  29. 	}
  30. }
Success #stdin #stdout 0.07s 381824KB
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stdout 
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https://ideone.com/ErXIvr
language:
Java (HotSpot 12)
created:
11 years ago
visibility:
public

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