Can an abstract class contain a constuctor?

[Tan Richards]

Hi,
I'm new to Java and in the procees of learning.Can u plz answer the question for me with some explanation if possible?

[A Kumar]

Hi,

Yes you can have constructors in abstract class..
but you cant instantiate the abstract class....

Ex: AbstractClassA ab=new AbstractClassA();

where AbstractClassA is an abstract class.

  
 
abstract class ABC{
    int i;
    ABC(){
        i=10;
        System.out.println("Abstract class");
    }
    void test(){};
    abstract void tt();
}
public class AbstractInstance extends ABC{
    
    void test(){
        System.out.println("Hai");
    }
    public static void main(String[] args) {
        ABC t=new AbstractInstance();
        t.test();
        System.out.println("i value is " + t.i);
        
    }
    void tt() {
 
        
    }
}
 
 
 

But you cant have constructor in interface..

hope you got it...
[ September 29, 2005: Message edited by: A Kumar ]

[Tan Richards]

Yeah, thank you