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Java Boolean Example

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  1. /*
  2.   Java Boolean Example
  3.   This example shows how object of Boolean can be declared and used.
  4.   Boolean is a wrapper class provided to wrap boolean primitive value.
  5.   It has a single field of type boolean.
  6. */
  7.  
  8. public class JavaBooleanExample {
  9.  
  10.   public static void main(String[] args) {
  11.     //Create an Boolean object using one the below given ways
  12.     //1. Create an Boolean object from boolean value
  13.     Boolean blnObj1 = new Boolean(true);
  14.    
  15.     /*
  16.     2. Create an Boolean object from String. It creates a Boolean object
  17.     representing true if the string is not null and equals to true. Otherwise
  18.     it creates Boolean object representing false.
  19.     */
  20.     Boolean blnObj2 = new Boolean("false");
  21.    
  22.     //print value of Boolean objects
  23.     System.out.println(blnObj1);
  24.     System.out.println(blnObj2);
  25.   }
  26. }
  27. /*
  28. Output of the program would be
  29. true
  30. false
  31. */