Jun 16, 2023 · Java supports Constructor Overloading in addition to overloading methods. In Java, overloaded constructor is called based on the parameters specified when a new is executed. When do we need Constructor Overloading?

Yes, only by its amount of parameters. It's called "overloading" of functions. You can overload a function by providing the same signature with different parameters (according to their type and order). The JVM will then decide which method to use in a certain situation.

Sep 11, 2022 · Lets see how to overload a constructor with the help of following java program. Here we are creating two objects of class StudentData. One is with default constructor and another one using parameterized constructor.

Constructor Overloading: Constructor can be overloaded in the same way as you can overload methods. Constructor overloading allows a class to have more than one constructor that have same name as that of the class but differs only in terms of number of parameters or parameter’s data type or both. By overloading a constructor for a class, we ...

In this article, we will learn what is constructor overloading with example and how to use this keyword to call one constructor from another constructor of the same class. In addition to overloading normal methods, you can also overload constructor methods.

Apr 13, 2025 · Let’s take a very simple example program to demonstrate constructor overloading in Java. Example 1: package constructorOverloadingPrograms; public class Person { // Constructor overloading begins from here.

Nov 16, 2021 · Constructor overloading in Java can be defined as a way of having more than one constructor in a class. We can create many constructors with different parameters. This help us initialize the object in a number of different ways. Le us look at the below class for example ( read the comments ). private int age; private String firstName;

Mar 12, 2015 · Constructor overloading is like method overloading. Constructors can be overloaded to create objects in different ways. The compiler differentiates constructors based on how many arguments are present in the constructor and other parameters like the order in which the arguments are passed.

Mar 30, 2025 · Consider the following Java program, in which we have used different constructors in the class. In the above example, the Student class constructor is overloaded with two different constructors, I.e., default and parameterized. Here, we need to understand the purpose of constructor overloading.

Apr 18, 2022 · Below is a sample program to demonstrate the occurrence of an error as the FirstCode object cannot be created with a default constructor as it does not have one. FirstCode fc = new FirstCode(); // here, a constructor FirstCode cannot be created.