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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.  
  11. 	private static final int MODE_SHIFT = 30;
  12.     private static final int MODE_MASK  = 0x3 << MODE_SHIFT;
  13.     public static final int UNSPECIFIED = 0 << MODE_SHIFT;
  14.     public static final int EXACTLY     = 1 << MODE_SHIFT;
  15.     public static final int AT_MOST     = 2 << MODE_SHIFT;
  16.  
  17. 	public static void main (String[] args) throws java.lang.Exception
  18. 	{
  19. 		int measureSpec = 0x7fffffff;
  20. 		int measureSpec2 = 0x40000100;
  21.  
  22. 		displayMeasureSpecInfos( measureSpec );
  23. 		displayMeasureSpecInfos( measureSpec2 );
  24.  
  25. 	}
  26.  
  27. 	private static void displayMeasureSpecInfos( int spec ) {
  28. 		System.out.println( Integer.toHexString(spec) );
  29. 		System.out.println("Spec is UNSPECIFIED "+ (getMode(spec) == UNSPECIFIED));
  30. 		System.out.println("Spec is EXACTLY "+ (getMode(spec) == EXACTLY));
  31. 		System.out.println("Spec is AT_MOST "+ (getMode(spec) == AT_MOST));
  32. 		System.out.println( "Measure is " + getSize(spec) );
  33. 		System.out.println( "-----" );
  34. 	}
  35.  
  36. 	public static int getMode(int measureSpec) {
  37.         return (measureSpec & MODE_MASK);
  38.     }
  39.  
  40.     public static int getSize(int measureSpec) {
  41.         return (measureSpec & ~MODE_MASK);
  42.     }
  43. }
Success #stdin #stdout 0.06s 380160KB
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stdin
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Standard input is empty
stdout
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7fffffff
Spec is UNSPECIFIED false
Spec is EXACTLY true
Spec is AT_MOST false
Measure is 1073741823
-----
40000100
Spec is UNSPECIFIED false
Spec is EXACTLY true
Spec is AT_MOST false
Measure is 256
-----
https://ideone.com/isPS9W
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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