Constructor Chaining Java Example Program

Definition

Constructor chaining is calling a constructor from the another constructor of the same class.

Chaining Constructor Characteristics In Java

Call another constructor using this() keyword in the same class.
The class has two or more constructors.
Each constructor has various type of arguments.

Syntax

class ClassName{

    public ClassName() {
        //Do Something
    }

    public ClassName(String string) {
        //Calling the Constructor without any parameters - Chaining
        this();
        //Do something
    }
}

Constructor Chaining Example Program

public class ConstructorChaining {
    public static void main(String[] args) {
        ChainingClass object = new ChainingClass("This is the third ", "Chaining Constructor");
    }
}

class ChainingClass{

    public ChainingClass() {
        System.out.println("This is the first Chaining Constructor");
    }

    public ChainingClass(String string) {
        //Calling the Constructor without any parameters
        this();
        System.out.println(string);
    }
    
     public ChainingClass(String string1, String string2) {
         //Calling the constructor with one parameter - Chaining
         this("This is the second Chaining Constructor");
         System.out.println(string1+string2);
    }
}

Sample Output

This is the first Chaining Constructor
This is the second Chaining Constructor
This is the third Chaining Constructor

Constructor Chaining Java Example Program

Definition

Chaining Constructor Characteristics In Java

Syntax

Constructor Chaining Example Program

Sample Output

Basic Programs

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