In Java, the Object class is like the parent of all other classes, forming the base for how classes inherit traits. Every Java class, whether directly or indirectly, is connected to the Object class, found in the java.lang package. This connection is crucial for Object class methods in Java, as it sets the foundation for how different classes share common behaviors.
Understanding the Object class methods in Java is essential for grasping how classes in Java inherit and share functionalities.
Object Class Methods in Java
In this article, we’ll explore the various methods of the Object class methods in Java and understand their purposes and functions.
toString() Method
This method gets the object’s String version, which you can change as needed. For instance, if there’s a class like “Office” and you want to show its branch head with location when using this method, you can do that. The representation is entirely up to the object and is handy during debugging. This is part of the Object class methods in Java.
hash code()
A hash code is a number created by a special method called a hashing algorithm. In Java, each object has its own unique hash code. This code is produced by applying the algorithm to the object’s internal address. Importantly, it’s not the actual memory address; instead, it’s a numeric representation of that address.
equals ()
This method compares two objects and returns whether they are equal or not. It is used to compare the value of the object on which the method is called and the object value which is passed as the parameter.
get()
Java’s get() function is object-related and is used to retrieve the value of a specific field that is represented by a Field object. If the field is of a primitive type, the procedure encapsulates the value in an object automatically. Moreover, the get() method is useful for retrieving the runtime class object and for gathering metadata about the field.
finalize()
The finalize() method is executed by the garbage collector when an object is deleted from memory, specifically when there are no remaining references to that object.
Clone()
In a subclass implementing the Cloneable Interface, the Object class’s clone() method should be overridden. This method is employed for cloning, creating a duplicate of the object along with values in its member variables, using the syntax aobj.clone(). If a class doesn’t implement the Cloneable interface, the process throws a CloneNotSupportedException.
wait()
This method places the current thread in a waiting state until another thread issues a notification. The duration for which the thread should remain in the waiting state needs to be specified in milliseconds within the function.
notify()
This method activates a single thread that is waiting for a specific item. It only delivers notifications to one thread at a time.
notifyAll()
This method awakens all threads currently waiting for an object, issuing notifications to all threads simultaneously.
Conclusion
In conclusion, understanding Object class methods in Java completely is essential for improving one’s programming abilities. These methods are essential for managing and interacting with objects, which helps build strong Java programs.
A key component of efficient Java programming is knowledge of object class methods, which provide important insights into object-oriented concepts. Enrolling in Java Training in Chennai may help you gain a deeper understanding and improve your ability to use Object class methods with skill.
