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  1.  
  2. /* Name of the class has to be "Main" only if the class is public. */
  3. class Ideone
  4. {
  5. 	public static void main (String[] args) throws java.lang.Exception
  6. 	{
  7. 		byte[] arr = {5, 10, 100, -10};
  8. 		revers(arr);
  9.  
  10. 	}
  11.  
  12. 	public static void revers (byte[] args)
  13. 	{
  14. 		for(int i=0; i<args.length; i++) {
  15. 			int tmp = (int)args[i];
  16. 			tmp = ((tmp & 0x55) << 1) | ((tmp >> 1) & 0x55);
  17. 			tmp = ((tmp & 0x33) << 2) | ((tmp >> 2) & 0x33);
  18. 			tmp = ((tmp & 0x0F) << 4) | ((tmp >> 4) & 0x0F);
  19. 			System.out.format("# %d Byte revers to %d\n",args[i],(byte)tmp);
  20.             		args[i] = (byte)tmp;
  21.             	}	
  22. 	}	
  23.  
  24. }
Success #stdin #stdout 0.04s 4386816KB
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stdin
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Standard input is empty
stdout
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# 5 Byte revers to -96
# 10 Byte revers to 80
# 100 Byte revers to 38
# -10 Byte revers to 111
https://ideone.com/0kW2qo
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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