Output for a Jave prog

[Rajiv Chelsea]

   
public class Eight {
	
	public static void main(String[] args){
		new C("hello");
		new C(7);
	}

}

class A {
    public A() {
    	System.out.println("A1");
    }
    public A(int i) { this();
    System.out.println("A2");}
}
class B extends A {
    public boolean B(String msg) { 
    	System.out.println("B");
    	return false; }
}
class C extends B {
    private C() { super(); }
    public C(String msg) { this(); }
    public C(int i) {
    	System.out.println("C3");
    }
}

 

Hi , The above code produces the following output


A1
A1
C3

Please explain how the above ouput is printed..What is the use of this()

[Henry Wong]

QuoteYourSources

[Abimaran Kugathasan]

Rajiv Chelsea wrote:
What is the use of this()

OK, let's have a clue: this(args) call the overloaded constructor of the class. In your case this() calls the no-args constructor of the same class! Try it, you'll get it!

[Pramod P Deore]

this() is used call the another constructor (as per passed arguments) of the same class and super is used to call superclass constructor. What you have not understand in this?

[Rajiv Chelsea]

Thanks all!

[Jan Cumps]

QuoteYourSources

If you post questions on JavaRanch, You have to tell us where you get them from.

[Rajiv Chelsea]

I got these from a scjp test engine i downloaded

[Rob Spoor]

Which one?

[Rajiv Chelsea]

I downloaded it from Khalid Mughals webpage