Web Reference: When we create a Parent reference variable (parent) and assign it to hold a Child object, it's a form of polymorphism where the reference type is the parent class, and the object type is the child class. Nov 21, 2025 ยท Every class in Java either directly or indirectly extends Object. It provides essential methods like toString (), equals (), hashCode (), clone () and several others that support object comparison, hashing, debugging, cloning and synchronization. To inherit from a class, use the extends keyword. In the example below, the Car class (subclass) inherits the attributes and methods from the Vehicle class (superclass):
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Object Class In Java Parent Net Worth 2026: Salary, Income & Wealth Net Worth & Biography

Estimated Worth: $9M - $32M
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Last Updated: April 7, 2026
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