INHERITANCE IN JAVA

MULTIPLE INHERITANCE IS NOT ALLOWED. THEREFORE JAVA USES INTERFACE TO SUPPORT MULTIPLE INHERITANCE...
LETS SOLVE THIS QUERRY BY A PROGRAM..

PROGRAM:-
class X
{
void show()
{
System.out.println("Hello,Java I am inherited");
}
}
class Y extends X
{
}
class Demo
{
public static void main(String args[])
{
Y a=new Y();
a.show();
}
}

Output:-
Hello,Java I am inherited.

Note :- X is a super class and Y is a child class and extends is a keyword.

• Super Keyword :- used inside the child class to access the super class instance variable.

          There is some restrictions which I have mentioned below..

      Restriction:- The first statement inside the child class constructor must be super, otherwise it will give a compile time error.

Program:-

class X

{

voud show()

{

System.out.println("Hello");

}

}

class Y extends X

{

}

Class Z extends Y

{

z()

{

super.show();

}

}

Public class Demo extends Z

{

public static void main(String args[])

{

Z obj=new z();

}

}

Output:-

Hello