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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. 	private static Map<Byte, OpCode> valueToOpCode = new HashMap<>();
  11.  
  12.     static OpCode getOpCode(byte value) {
  13.         return valueToOpCode.get(value);
  14.     }
  15.  
  16.     public static enum OpCode {
  17.         a((byte) 0x0),
  18.         b((byte)0x18),
  19.         c((byte)0x1A);
  20.  
  21.         private byte value;
  22.  
  23.         OpCode(byte value) {
  24.             this.value = value;
  25.             valueToOpCode.put(value, this);
  26.         }
  27.  
  28.         byte getValue() {
  29.             return value;
  30.         }
  31.  
  32.     }
  33.  
  34.     public static void main(String[] args) {
  35.         byte x = 0x18;
  36.         System.out.println(getOpCode(x)); // prints 'b'
  37.     }
  38. }
Success #stdin #stdout 0.04s 4386816KB
comments (?)
stdin 
Standard input is empty
stdout 
null
https://ideone.com/4N5pMA
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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