Common Root Class
All Java classes are derived from this common root class, that defines common behaviors.
Common behaviors include multi-threading and garbage collector etc.
protected Object clone() throws CloneNotSupportedException
Creates and returns a copy of this object.
public boolean equals(Object obj)
Indicates whether some other object is “equal to” this one.
protected void finalize() throws Throwable
Called by the garbage collector on an object when garbage collection determines that there are no more references to the object
public final Class getClass()
Returns the runtime class of an object.
public int hashCode()
Returns a hash code value for the object.
public String toString()
Returns a string representation of the object.
The notify, notifyAll, and wait methods of Object all play a part in synchronizing the activities of independently running threads in a program.
public final void notify() public final void notifyAll() public final void wait() public final void wait(long timeout) public final void wait(long timeout, int nanos)