Java.lang.Boolean類

類聲明

如下是聲明java.lang.Boolean class:

public final class Boolean
   extends Object
      implements Serializable, Comparable<Boolean>

字段域

Following are the fields for java.lang.Boolean class:

• static Boolean FALSE -- This is the Boolean object corresponding to the primitive value false.

• static Boolean TRUE -- This is the Boolean object corresponding to the primitive value true.

• static Class<Boolean> TYPE -- This is the Class object representing the primitive type boolean.

類構造方法

S.N.	構造方法 & 詳細描述
1	Boolean(boolean value) This allocates a Boolean object representing the value argument.
2	Boolean(String s) This allocates a Boolean object representing the value true if the string argument is not null and is equal, ignoring case, to the string "true".

類方法

S.N.	方法 & 描述
1	boolean booleanValue()  This method returns the value of this Boolean object as a boolean primitive.
2	int compareTo(Boolean b)  This method compares this Boolean instance with another.
3	boolean equals(Object obj)  This method 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.
4	static boolean getBoolean(String name)  This method returns true if and only if the system property named by the argument exists and is equal to the string "true".
5	int hashCode()  This method returns a hash code for this Boolean object.
6	static boolean parseBoolean(String s)  This method parses the string argument as a boolean.
7	String toString()  This method returns a String object representing this Boolean's value.
8	static String toString(boolean b)  This method returns a String object representing the specified boolean.
9	static Boolean valueOf(boolean b)  This method returns a Boolean instance representing the specified boolean value.
10	static Boolean valueOf(String s)  This method returns a Boolean with a value represented by the specified string.

方法繼承

此類從如下類繼承了上面列出的方法

• java.lang.Object