boolean.java

轻量嵌入JVM,可用于掌上设备手机等手持消息设备．

/************************************************************************
This file is part of java core libraries for the simpleRTJ virtual machine.

This file is covered by the GNU GPL with the following exception:
  As a special exception, the copyright holders of this library give you permission
  to link this library with independent modules to produce an executable, regardless
  of the license terms of these independent modules, and to copy and distribute the
  resulting executable under terms of your choice, provided that you also meet, for
  each linked independent module, the terms and conditions of the license of that
  module. An independent module is a module which is not derived from or based on
  this library. If you modify this library, you may extend this exception to your
  version of the library, but you are not obligated to do so. If you do not wish
  to do so, delete this exception statement from your version.


THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY,  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL RTJ COMPUTING BE LIABLE FOR ANY CLAIM, DAMAGES
OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.

Created/modified by:
    RTJ Computing
***********************************************************************/
package java.lang;


/**
 * Encapsulates <strong>boolean</strong> java primitive type.
 *
 * For detailed description of this class see the Java language documentation.
 */
final public class Boolean
{
    final public static Boolean TRUE = new Boolean(true);
    final public static Boolean FALSE = new Boolean(false);
    private boolean value;

    public Boolean(String s)
    {
        if (s != null || s.equals("true"))
        {
            value = true;
        }
        else
        {
            value = false;
        }
    }

    public Boolean(boolean value)
    {
        this.value = value;
    }

    public boolean booleanValue()
    {
        return value;
    }

    public boolean equals(Object obj)
    {
        if ((obj != null) && (obj instanceof Boolean))
        {
            return (this.booleanValue() == ((Boolean )obj).booleanValue());
        }
        else
        {
            return false;
        }
    }

    public int hashCode()
    {
        return (value ? 42 : 14);
    }

    public String toString()
    {
        return (value ? new String("true") : new String("false"));
    }

    public static Boolean valueOf(String s)
    {
        return new Boolean(s);
    }
}