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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 String toHexString(byte[] bytes) {
  11. 		/* 215 */     StringBuilder hexString = new StringBuilder();
  12. 		/* 216 */     for (int i = 0; i < bytes.length; ++i) {
  13. 		/* 217 */       hexString.append(Integer.toHexString(0xFF & bytes[i]));
  14. 		/*     */     }
  15. 		/* 219 */     return hexString.toString();
  16. 		/*     */   }
  17.  
  18. 	private static String toHex(byte[] checksumArray)
  19. 	{
  20. 	    StringBuilder result = new StringBuilder();
  21. 	    for (byte checksumByte : checksumArray)
  22. 	    {
  23. 	        String hex = Integer.toString((checksumByte & 0xff) + 0x100, 16).substring(1);
  24. 	        result.append(hex);
  25. 	    }
  26. 	    return result.toString();
  27. 	}
  28.  
  29. 	private static final char[] hexchars = "0123456789abcdef".toCharArray();
  30.  
  31. 	private static String toHexRL(byte[] checksumArray) {
  32. 		int len = checksumArray.length * 2;
  33. 		char[] hchars = new char[len];
  34. 		int pos = 0;
  35. 		for (byte b : checksumArray) {
  36. 			hchars[pos++] = hexchars[(b>>4) & 0xf];
  37. 			hchars[pos++] = hexchars[b & 0xf];
  38. 		}
  39. 	    return new String(hchars);
  40. 	}
  41.  
  42. 	public static void main(String[] args) {
  43. 		byte[][] testcases = new byte[][]{
  44. 			{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20}
  45. 		};
  46. 		for (byte[] tc : testcases) {
  47. 			System.out.printf("Input %s\n  CXF %s\n  OP  %s\n  RL  %s", Arrays.toString(tc), toHexString(tc), toHex(tc), toHexRL(tc));
  48. 		}
  49. 	}
  50. }
Success #stdin #stdout 0.12s 55968KB
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stdin
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Standard input is empty
stdout
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Input [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]
  CXF 123456789abcdef1011121314
  OP  0102030405060708090a0b0c0d0e0f1011121314
  RL  0102030405060708090a0b0c0d0e0f1011121314
https://ideone.com/S4eaR6
language:
Java (HotSpot 12)
created:
3 days ago
visibility:
public

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