Pass parameter from default constructor to Custom constructor.

ParameterConstructor.java

import java.util.Random;

public class Main {
    public static void main(String[] args){
        B b = new B();
        System.out.println("-----");
        B bB = new B(12);
    }
}

class B{
    public B (){
        this(new Random().nextInt());
        System.out.println("This is a default constructor passed the parameter ");
    }

    public B (int i){
        System.out.println("This is a Custom constructor accepted the parameter = " + i);

    }
}