Java 
Object Class is the root of the class hierarchy. Every class has Object as a superclass. All objects, including arrays, implement the methods of this class.Constructor :-
public Object()
Methods :-
| Methods | Discription | 
|---|---|
| protected Object clone() | Creates and returns a copy of this object. | 
| boolean equals(Object obj) | Indicates whether some other object is "equal to" this one. | 
| protected void finalize() | Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. | 
| Class getClass() | Returns the runtime class of this Object. | 
| int hashCode() | Returns a hash code value for the object | 
| void notify() | Wakes up a single thread that is waiting on this object's monitor. | 
| void notifyAll() | Wakes up all threads that are waiting on this object's monitor. | 
| String toString() | Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method. | 
| void wait() | Causes the current thread to wait until another thread invokes the notify() method or the notifyAll() method for this object. | 
| void wait(long timeout) | Causes the current thread to wait until either another thread invokes the notify() method or the notifyAll() method for this object, or a specified amount of time has elapsed. | 
| void wait(long timeout, int nanos) | Causes the current thread to wait until another thread invokes the notify() method or the notifyAll() method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed. | 
 
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