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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. public static void main (String[] args) throws java.lang.Exception
  11. {
  12. java.lang.reflect.Field f = sun.misc.Unsafe.class.getDeclaredField("theUnsafe");
  13. f.setAccessible(true);
  14. sun.misc.Unsafe unsafe = (sun.misc.Unsafe) f.get(null);
  15. long memStart = unsafe.allocateMemory(4);
  16. int japka = unsafe.getInt(memStart);
  17. System.out.println(japka);
  18. }
  19. }
Success #stdin #stdout 0.1s 320576KB
stdin
Standard input is empty
stdout
156211104