What are the differences between constructor and method of a class in Java?

 In Java, a constructor is a special method that is used to create and initialize an object of a class. Constructors have the same name as the class in which they are defined and do not have a return type.

Here are some key differences between constructors and methods in Java:

  1. Purpose: The main purpose of a constructor is to create and initialize an object of a class, while the main purpose of a method is to perform a specific task.

  2. Invocation: A constructor is invoked automatically when an object is created, while a method must be explicitly invoked by the program.

  3. Overloading: Constructors can be overloaded, which means that a class can have multiple constructors with different parameter lists. Methods can also be overloaded, but the overloading is based on the number and types of the method's arguments.

  4. Inheritance: Constructors are not inherited, which means that a subclass does not inherit the constructors of its superclass. Methods are inherited, which means that a subclass can override or extend the methods of its superclass.

  5. Return type: Constructors do not have a return type, not even void, while methods can have a return type or void.

  6. Access modifiers: Constructors can have access modifiers, such as public or private, to control the visibility and accessibility of the object they create. Methods can also have access modifiers to control their visibility and accessibility.

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