Java Default Constructor Examples

• Default constructor refers to a constructor that is automatically created by compiler in the absence of explicit constructors.
• You can also call a constructor without parameters as default constructor because all of its class instance variables are set to default values.

Java Default Constructor Sample Code

package com.myjava.constructors;

public class MyDefaultConstructor {
    
    public MyDefaultConstructor(){
        System.out.println("I am inside default constructor...");
    }
    
    public static void main(String a[]){
        MyDefaultConstructor mdc = new MyDefaultConstructor();
    }
}

Example Output

I am inside default constructor...

Other Constructor Examples

• Parametarized Constructor Example
• Constructor Overloading Example
• Constructor Chaining Example
• SingleTon Example (Private Constructor)