JAVA #21 – Constructor Overloading in Java

Constructor-Overloading in Java

In some programming languages, constructor overloading is the ability to create multiple methods of the same name with different implementations in same class.

Syntax

public class DataArtist {
   ...
   DataArtist (String s) {
       ...
   }
   DataArtist (int i) {
       ...
   }
   DataArtist (double f) {
       ...
   }
   DataArtist (int i, double f) {
       ...
   }
}

// File name ContOverloading.java 
package contoverloading;
public class ContOverloading {
    public static void main(String[] args) {
        Addition objAdd = new Addition();
        Addition objAdd1 = new Addition(10);
        Addition objAdd2 = new Addition(10,35);
        Addition objAdd3 = new Addition(10,345,56);
    }  
}

// File name Addition.java must store in same package of above file.
package contoverloading;
public class Addition {
    Addition()// Default Consturtor
    {
        System.out.println("No Parameter Here");
    }
    Addition(int i)
    {
        System.out.println("The Value is :"+i);
    }
    Addition(int i, int j)
    {
        System.out.println("The Sum of Two variables is :"+(i+j));
    }
    Addition(int i, int j, int k)
    {
        System.out.println("The Sum of Three variables is :"+(i+j+k));
    }
}