Difference Between Method And Constructor In Java
Understanding the Distinction between Method and Constructor in Java
Difference Between Method And Constructor In Java
In Java, a method is a block of code that performs a specific task and can be called multiple times from different parts of a program. On the other hand, a constructor is a special type of method that is used to initialize objects when they are created. Constructors have the same name as the class and do not have a return type, while methods can have any name and optionally return a value. Additionally, constructors are automatically called when an object is instantiated, while methods need to be explicitly called by the program.
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1 - A method in Java is a set of statements grouped together to perform a specific task, while a constructor is a special type of method that is called when an object is created.
2) Methods have return types, while constructors do not have return types.
3) Methods can be called multiple times within a program, whereas constructors are only called once during the instantiation of an object.
4) Constructors have the same name as the class, while methods have unique names within a class.
5) Methods can have any access modifier (public, private, protected, default), while constructors are typically public for object instantiation.
6) Constructors are used to initialize the object's state, while methods are used to define behavior or perform actions.
7) Methods can accept parameters, while constructors can also accept parameters to initialize the object's state during object creation.
8) Constructors cannot be inherited or overridden, while methods can be inherited and overridden in subclasses.
9) When a new object is created, a constructor is automatically called to initialize the object, whereas methods need to be explicitly called to perform their tasks.
10) Constructors are essential for creating objects, while methods are used for performing specific actions or calculations on objects once they have been created.
11) In Java, if a class does not define any constructors, a default no argument constructor is provided by the compiler, whereas methods must be explicitly defined in the class.
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