How many types of constructors are used in Java?
380
29-Apr-2023
Aryan Kumar
01-May-2023There are three types of constructors in Java:
Here are examples of each type of constructor:
Krishnapriya Rajeev
29-Apr-2023Java has the following types of constructors:
1. Default constructor: This constructor is provided by Java if there isn't a constructor explicitly defined in a class. It has no parameters and does not perform any sort of initialization. The main purpose of this constructor is to ensure that an object of the class can be created.
2. Parameterized constructor: This constructor can be defined with one or more parameters, used to initialize the instance variables of the class. When creating an object using a parameterized constructor, the constructor is called with the specified arguments, and the instance variables are initialized with the values passed as arguments.
3. Copy constructor: This constructor is used to create a new object that is a copy of an existing object. However, copy constructors are not provided as default by Java and must be explicitly defined by the programmer.