Java.lang.Boolean Class
Java Boolean Class
Java.lang package provides a Boolean class which wraps a value of the primitive type boolean in an object. An object of type Boolean contains a single field whose type is boolean.
In addition, 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.
Class declaration
The declaration of java.lang.Boolean class is:
public final class Boolean
extends Object
implements Serializable, Comparable<Boolean>
Fields
| S.N | Fields & Description |
|---|---|
| 1. |
static Boolean FALSE The Boolean object corresponding to the primitive value false. |
| 2. |
static Boolean TRUE The Boolean object corresponding to the primitive value true. |
| 3. |
static Class<Boolean> TYPE The Class object representing the primitive type boolean. |
java.lang.Boolean Methods
The java.lang.Boolean class has a number of methods which are listed below:
Member Methods
| S.N | Methods & Description |
|---|---|
| 1. |
boolean booleanValue() Returns the value of this Boolean object as a boolean primitive. |
| 2. |
static int compare(boolean x, boolean y) Compares two boolean values. |
| 3. |
int compareTo(Boolean b) Compares this Boolean instance with another. |
| 4. |
boolean equals(Object obj) Returns true if and only if the argument is not null and is a Boolean object that represents the same boolean value as this object. |
| 5. |
static boolean getBoolean(String name) Returns true if and only if the system property named by the argument exists and is equal to the string "true". |
| 6. |
int hashCode() Returns a hash code for this Boolean object. |
| 7. |
static int hashCode(boolean value) Returns a hash code for a boolean value; compatible with Boolean.hashCode(). |
| 8. |
static boolean logicalAnd(boolean a, boolean b) Returns the result of applying the logical AND operator to the specified boolean operands. |
| 9. |
static boolean logicalOr(boolean a, boolean b) Returns the result of applying the logical OR operator to the specified boolean operands. |
| 10. |
static boolean logicalXor(boolean a, boolean b) Returns the result of applying the logical XOR operator to the specified boolean operands. |
| 11. |
static boolean parseBoolean(String s) Parses the string argument as a boolean. |
| 12. |
String toString() Returns a String object representing this Boolean's value. |
| 13. |
static String toString(boolean b) Returns a String object representing the specified boolean. |
| 14. |
static Boolean valueOf(boolean b) Returns a Boolean instance representing the specified boolean value. |
| 15. |
static Boolean valueOf(String s) Returns a Boolean with a value represented by the specified string. |
Methods inherited
This class inherits the methods of following class:
- java.lang.Object
