What is the difference between static and non-static methods (Core Java Interview Question #497)

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224 بار بازدید - 2 هفته پیش - In this session, I have
In this session, I have explained the various differences between static and non-static instance methods along with practical demonstration by writing the Java code. static methods have static keyword specified. Non-static methods doesn't have static keyword specified. static methods can access only static stuff directly. Indirectly can access, non-static stuff by creating an object. non-static methods can access both static and non-static stuff directly. No need to create an object. static methods belong to Class. Outside the class, we have to call static methods using Class name. instance methods belong to Object. Outside the class, we have to call instance methods using object reference. this keyword cannot be used inside static methods. this keyword can be used inside the instance methods. Static methods are loaded into memory when the class is loaded. i.e. Before object is created. When an object (instance) is created, the JVM allocates memory for the instance's variables (fields). After object is created. static methods cannot be overridden, but can be hidden. Compile time polymorphism. instance methods can be overridden. Can be overridden, allowing for runtime polymorphism. static methods are Useful for creating utility methods and common stuff. instance methods are used to perform operations on object.

What is the difference between static and non-static methods in Java (Core Java Interview Question #497)

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2 هفته پیش در تاریخ 1403/04/09 منتشر شده است.
224 بـار بازدید شده
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