Write a Program to Implement Multilevel Inheritance in Java

Multilevel Inheritance The class A serves as a base class for the derived class B, which in turn serves as a base class for the derived class C. The class B is known as intermediate base class since it provides a link for the inheritance between A and C.

Syntax

class A{
 //Do something
}
class B extends A{
 //Do something
}
class C extends B{
 //Do something
}

Multilevel Inheritance Example Program

class MultilevelInheritance{
 protected String str;
 MultilevelInheritance() {
  str = "This ";
 }
}
 
class ChildClass1 extends MultilevelInheritance {
 ChildClass1() {
  str = str.concat("is ");
 }
}
 
class ChildClass2 extends ChildClass1 {
 ChildClass2() {
  str = str.concat("Multilevel Inheritance ");
 }
}
 
class ChildClass3 extends ChildClass2 {
 ChildClass3() {
  str = str.concat("Example.");
 }
 void display() {
  System.out.println(str);
 }
}
 
class MultilevelInheritanceMain {
 public static void main(String args[]) {
  ChildClass3 obj = new ChildClass3();
  obj.display();
 }
}

Sample Output

Output is:
This is Multilevel Inheritance Example.