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The java.lang.Boolean class is a final class and it is a subclass of Object class. The Boolean class wraps the value of primitive datatype boolean into a Boolean object. An object of type Boolean contains a single field whose type is boolean. In other words, the wrapper classes create objects for primitive data types. This class provides many methods for converting a boolean to a String and a String to a boolean as well as other constants and methods useful when dealing with a boolean.
<strong>public final class Boolean extends Object implements Serializable, Comparable</strong>
public class BooleanTest { public static void main(String[] args) { Boolean b; b = new Boolean(true); boolean b1; b1 = b.booleanValue(); String data = "The Primitive value of Boolean object " + b + " is " + b1; System.out.println(data); } }
The Primitive value of Boolean object true is true
public class BooleanTest1 { public static void main(String args[]) { Boolean b1, b2; b1 = new Boolean(true); b2 = new Boolean("false"); System.out.println("b1 Value is : "+ b1.booleanValue()); System.out.println("b2 Value is : "+ b2.booleanValue()); System.out.println("b1 compareTo b2 : "+ b1.compareTo(b2)); System.out.println("b1 equals b2 : "+ b1.equals(b2)); } }
b1 Value is : true b2 Value is : false b1 compareTo b2 : 1 b1 equals b2 : false
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