Boolean JDK 1.6)

Constructors

public Boolean (boolean value)

Allocates a Boolean object representing the value argument.

Note: It is rarely appropriate to use this constructor. Unless a new instance is required, the static factory Boolean.valueOf(boolean) is generally a better choice. It is likely to yield significantly better space and time performance.
Parameters:
- value - the value of the Boolean.

public Boolean (String s)

Allocates a Boolean object representing the value true if the string argument is not null and is equal, ignoring case, to the string "true".

Allocates a Boolean object representing the value true if the string argument is not null and is equal, ignoring case, to the string "true". Otherwise, allocate a Boolean object representing the value false. Examples:

new Boolean("True") produces a Boolean object that represents true.
new Boolean("yes") produces a Boolean object that represents false.
Parameters:
- s - the string to be converted to a Boolean.

Methods

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public boolean booleanValue ()

Returns the value of this Boolean object as a boolean primitive.

Returns the value of this Boolean object as a boolean
primitive.
Returns: the primitive boolean value of this object.

public int compareTo (Boolean b)

Compares this Boolean instance with another.

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.

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.
Returns: true if the Boolean objects represent the same value; false otherwise.
Parameters:
- obj - the object to compare with.

publicstatic 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".

Returns true if and only if the system property named by the argument exists and is equal to the string "true". (Beginning with version 1.0.2 of the Java^TM platform, the test of this string is case insensitive.) A system property is accessible through getProperty, a method defined by the System class.

If there is no property with the specified name, or if the specified name is empty or null, then false is returned.
Returns: the boolean value of the system property.
Parameters:
- name - the system property name.
See Also: System.getProperty(java.lang.String), System.getProperty(java.lang.String, java.lang.String),

public int hashCode ()

Returns a hash code for this Boolean object.

publicstatic boolean parseBoolean (String s)

Parses the string argument as a boolean.

Parses the string argument as a boolean. The boolean returned represents the value true if the string argument is not null and is equal, ignoring case, to the string "true".

Example: Boolean.parseBoolean("True") returns true.
Example: Boolean.parseBoolean("yes") returns false.
Returns: the boolean represented by the string argument
Parameters:
- s - the String containing the boolean representation to be parsed
Since: 1.5

public String toString ()

Returns a String object representing this Boolean's value.

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.
Returns: a string representation of this object.

publicstatic String toString (boolean b)

Returns a String object representing the specified boolean.

Returns a String object representing the specified
boolean. If the specified boolean is true, then
the string "true" will be returned, otherwise the
string "false" will be returned.
Returns: the string representation of the specified boolean
Parameters:
- b - the boolean to be converted
Since: 1.4

publicstatic Boolean valueOf (boolean b)

Returns a Boolean instance representing the specified boolean value.

publicstatic Boolean valueOf (String s)

Returns a Boolean with a value represented by the specified string.

Returns a Boolean with a value represented by the
specified string. The Boolean returned represents a
true value if the string argument is not null
and is equal, ignoring case, to the string "true".
Returns: the Boolean value represented by the string.
Parameters:
- s - a string.