java.lang Boolean

java.lang
Boolean

Declaration
public final class Boolean
java.lang.Object
|
+--java.lang.Boolean
Description
The Boolean class wraps a value of the primitive type boolean in an object. An object of type Boolean
contains a single field whose type is boolean.
Since: JDK1.0, CLDC 1.0

Member Summary
Fields
static Boolean FALSE
static Boolean TRUE
Constructors
Boolean(boolean value)
Methods
boolean booleanValue()
boolean equals(Object obj)
int hashCode()
String toString()


Methods inherited from class Object
getClass(), notify(), notifyAll(), wait(), wait(), wait()


Fields
TRUE
Declaration:
public static final java.lang.Boolean TRUE
Description:
The Boolean object corresponding to the primitive value true.


FALSE
Declaration:
public static final java.lang.Boolean FALSE
Description:
The Boolean object corresponding to the primitive value false.
Constructors
Boolean(boolean)
Declaration:
public Boolean(boolean value)
Description:
Allocates a Boolean object representing the value argument.
Parameters:
value - the value of the Boolean.
Methods
booleanValue()
Declaration:
public boolean booleanValue()
Description:
Returns the value of this Boolean object as a boolean primitive.
Returns: the primitive boolean value of this object.
toString()
Declaration:
public java.lang.String toString()
Description:
Returns a String object representing this Boolean’s value. If this object represents the value true, a string
equal to “true” is returned. Otherwise, a string equal to “false” is returned.
Overrides: toString in class Object
Returns: a string representation of this object.
hashCode()
Declaration:
public int hashCode()
Description:
Returns a hash code for this Boolean object.
Overrides: hashCode in class Object


equals(Object)
98
Returns: the integer 1231 if this object represents true; returns the integer 1237 if this object
represents false.
equals(Object)
Declaration:
public boolean equals(java.lang.Object obj)
Description:
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.
Overrides: equals in class Object
Parameters:
obj - the object to compare with.
Returns: true if the Boolean objects represent the same value; false otherwise.