Object 源码

Oject 源码:

/*
 * @(#)Object.java	1.73 06/03/30
 *
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package java.lang;

public class Object {

    private static native void registerNatives();
    static {
        registerNatives();
    }

     public final native Class<?> getClass();

     public native int hashCode();

  
     public boolean equals(Object obj) {
	return (this == obj);
    }

     protected native Object clone() throws CloneNotSupportedException;

     public String toString() {
	return getClass().getName() + "@" + Integer.toHexString(hashCode());
    }

       public final native void notify();

      public final native void notifyAll();

      public final native void wait(long timeout) throws InterruptedException;

      public final void wait(long timeout, int nanos) throws InterruptedException {
        if (timeout < 0) {
            throw new IllegalArgumentException("timeout value is negative");
        }

        if (nanos < 0 || nanos > 999999) {
            throw new IllegalArgumentException(
				"nanosecond timeout value out of range");
        }

	if (nanos >= 500000 || (nanos != 0 && timeout == 0)) {
	    timeout++;
	}

	wait(timeout);
    }

    public final void wait() throws InterruptedException {
	wait(0);
    }

    protected void finalize() throws Throwable { }
}