runtimeexception.java

来自「This is a resource based on j2me embedde」· Java 代码 · 共 99 行

/*
 * @(#)RuntimeException.java	1.17 06/10/13
 *
 * Copyright  1990-2008 Sun Microsystems, Inc. All Rights Reserved.  
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER  
 *   
 * This program is free software; you can redistribute it and/or  
 * modify it under the terms of the GNU General Public License version  
 * 2 only, as published by the Free Software Foundation.   
 *   
 * This program is distributed in the hope that it will be useful, but  
 * WITHOUT ANY WARRANTY; without even the implied warranty of  
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU  
 * General Public License version 2 for more details (a copy is  
 * included at /legal/license.txt).   
 *   
 * You should have received a copy of the GNU General Public License  
 * version 2 along with this work; if not, write to the Free Software  
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  
 * 02110-1301 USA   
 *   
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa  
 * Clara, CA 95054 or visit www.sun.com if you need additional  
 * information or have any questions. 
 *
 */

package java.lang;

/**
 * <code>RuntimeException</code> is the superclass of those 
 * exceptions that can be thrown during the normal operation of the 
 * Java Virtual Machine. 
 * <p>
 * A method is not required to declare in its <code>throws</code> 
 * clause any subclasses of <code>RuntimeException</code> that might 
 * be thrown during the execution of the method but not caught. 
 *
 *
 * @version 1.9, 02/02/00
 * @since   JDK1.0
 */
public class RuntimeException extends Exception {
    static final long serialVersionUID = -7034897190745766939L;

    /** Constructs a new runtime exception with <code>null</code> as its
     * detail message.  The cause is not initialized, and may subsequently be
     * initialized by a call to {@link #initCause}.
     */
    public RuntimeException() {
	super();
    }

    /** Constructs a new runtime exception with the specified detail message.
     * The cause is not initialized, and may subsequently be initialized by a
     * call to {@link #initCause}.
     *
     * @param   message   the detail message. The detail message is saved for 
     *          later retrieval by the {@link #getMessage()} method.
     */
    public RuntimeException(String message) {
	super(message);
    }

    /**
     * Constructs a new runtime exception with the specified detail message and
     * cause.  <p>Note that the detail message associated with
     * <code>cause</code> is <i>not</i> automatically incorporated in
     * this runtime exception's detail message.
     *
     * @param  message the detail message (which is saved for later retrieval
     *         by the {@link #getMessage()} method).
     * @param  cause the cause (which is saved for later retrieval by the
     *         {@link #getCause()} method).  (A <tt>null</tt> value is
     *         permitted, and indicates that the cause is nonexistent or
     *         unknown.)
     * @since  1.4
     */
    public RuntimeException(String message, Throwable cause) {
        super(message, cause);
    }

    /** Constructs a new runtime exception with the specified cause and a
     * detail message of <tt>(cause==null ? null : cause.toString())</tt>
     * (which typically contains the class and detail message of
     * <tt>cause</tt>).  This constructor is useful for runtime exceptions
     * that are little more than wrappers for other throwables.
     *
     * @param  cause the cause (which is saved for later retrieval by the
     *         {@link #getCause()} method).  (A <tt>null</tt> value is
     *         permitted, and indicates that the cause is nonexistent or
     *         unknown.)
     * @since  1.4
     */
    public RuntimeException(Throwable cause) {
        super(cause);
    }
}