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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. import java.text.SimpleDateFormat;
  7. import java.util.Date;
  8.  
  9. /* Name of the class has to be "Main" only if the class is public. */
  10. class Main {
  11. 	public static void main(String[] args) {
  12. 		String date = new SimpleDateFormat("yyMMdd").format( new Date());
  13. 		String chanlCustNo = "SZ32200009024371101";
  14. 		int len = 32 - date.length() - chanlCustNo.length();
  15. 		StringBuilder sb = new StringBuilder();
  16. 		for(int i = 0; i < len; i++) {
  17. 			sb.append( "0");
  18. 		}
  19. 		String key = sb.toString() + chanlCustNo + date;
  20. 		key = key.substring(0, 32);
  21. 		System.out.println(key);
  22.  
  23.  
  24. 		String text = key;
  25. 		byte[] hexbyte = text.getBytes();
  26. 		System.out.println(hexbyte);
  27. 		byte[] bitmap = new byte[hexbyte.length / 2];
  28. 		for (int i = 0; i < bitmap.length; i++) {
  29. 			hexbyte[i * 2] -= hexbyte[i * 2] > '9' ? 7 : 0;
  30. 			hexbyte[i * 2 + 1] -= hexbyte[i * 2 + 1] > '9' ? 7 : 0;
  31. 			bitmap[i] = (byte) ((hexbyte[i * 2] << 4 & 0xf0) | (hexbyte[i * 2 + 1] & 0x0f));
  32. 		}
  33. 		System.out.println(bitmap);
  34. 	}
  35. }
Success #stdin #stdout 0.21s 59048KB
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Standard input is empty
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0000000SZ32200009024371101251022
[B@7699a589
[B@58372a00
https://ideone.com/PnLEem
language:
Java (HotSpot 12)
created:
8 days ago
visibility:
public

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