constructor in java

constructor is a special memory member of a class that is used to initialize object data members.

characteristics of the constructor:

• it has the same name as its class
• it does not have any explicit return type
• it is implicitly invoked (call) just after an object is created.

syntax:

class class_name

{

    #constructor

    class_name()

    {    

    

    }

}

example:

class A

{

int a=10;

    A()

    {    

        System.out.println("this is constructor");

    }    

}

class Cons

{

    public static void main(String ad[])

    {

    A o=new A();

    }

}