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java.lang.Object | +----java.lang.Boolean
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.
Boolean object corresponding to the primitive
value false.
Boolean object corresponding to the primitive
value true.
Boolean object representing the
value argument.
Boolean object representing the value
true if the string argument is not null
and is equal, ignoring case, to the string "true".
true if and only if the argument is not
null and is a Boolean object that
contains the same boolean value as this object.
true if and only if the system property
named by the argument exists and is equal to the string
"true".
public final static Boolean TRUE
Boolean object corresponding to the primitive
value true.
public final static Boolean FALSE
Boolean object corresponding to the primitive
value false.
public final static Class TYPE
public Boolean(boolean value)
Boolean object representing the
value argument.
Boolean.
public Boolean(String s)
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.
Boolean.
public boolean booleanValue()
boolean value of this object.
public static Boolean valueOf(String s)
Boolean object is constructed. This
Boolean contains the value true if the
string argument is not null and is equal, ignoring
case, to the string "true".
Boolean value represented by the string.
public String toString()
true, a string equal
to "true" is returned. Otherwise, a string equal to
"false" is returned.
public int hashCode()
public boolean equals(Object obj)
true if and only if the argument is not
null and is a Boolean object that
contains the same boolean value as this object.
true if the objects are the same;
false otherwise.
public static boolean getBoolean(String name)
true if and only if the system property
named by the argument exists and is equal to the string
"true". (Beginning with Java 1.0.2, the test of
this string is case insensitive.) A system property is accessible
through getProperty, a method defined by the
System class.
boolean value of the system property.
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