java.lang
Class Boolean

java.lang.Object
  |
  +--java.lang.Boolean

public final class Boolean
extends Object

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

Field Summary
static Boolean FALSE
          The Boolean object corresponding to the primitive value false.
static Boolean TRUE
          The Boolean object corresponding to the primitive value true.
 
Constructor Summary
Boolean(boolean value)
          Allocates a Boolean object representing the value argument.
 
Method Summary
 boolean booleanValue()
          Returns the value of this Boolean object as a boolean primitive.
 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.
 int hashCode()
          Returns a hash code for this Boolean object.
 String toString()
          Returns a String object representing this Boolean's value.
 
Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait
 

Field Detail

FALSE

public static final Boolean FALSE
The Boolean object corresponding to the primitive value false.
Since:
JDE 4.0.0

TRUE

public static final Boolean TRUE
The Boolean object corresponding to the primitive value true.
Since:
JDE 4.0.0
Constructor Detail

Boolean

public Boolean(boolean value)
Allocates a Boolean object representing the value argument.
Parameters:
value - the value of the Boolean.
Method Detail

booleanValue

public boolean booleanValue()
Returns the value of this Boolean object as a boolean primitive.
Returns:
the primitive boolean value of this object.

equals

public 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.
Overrides:
equals in class Object
Parameters:
obj - the object to compare with.
Returns:
true if the Boolean objects represent the same value; false otherwise.

hashCode

public int hashCode()
Returns a hash code for this Boolean object.
Overrides:
hashCode in class Object
Returns:
the integer 1231 if this object represents true; returns the integer 1237 if this object represents false.

toString

public String toString()
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.



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