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/*  Java Boolean Example  This example shows how object of Boolean can be declared and used.  Boolean is a wrapper class provided to wrap boolean primitive value.  It has a single field of type boolean.*/ public class JavaBooleanExample {   public static void main(String[] args) {    //Create an Boolean object using one the below given ways    //1. Create an Boolean object from boolean value    Boolean blnObj1 = new Boolean(true);       /*    2. Create an Boolean object from String. It creates a Boolean object    representing true if the string is not null and equals to true. Otherwise    it creates Boolean object representing false.    */    Boolean blnObj2 = new Boolean("false");       //print value of Boolean objects    System.out.println(blnObj1);    System.out.println(blnObj2);  }}/*Output of the program would betruefalse*/

原文：http://www.java-examples.com/java-boolean-example