Inheritance, constructors and arguments : Inheritance « Class Definition « Java Tutorial

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Java Tutorial » Class Definition » Inheritance

5. 22. 10. Inheritance, constructors and arguments


class A {

  A(int i) {

    System.out.println("A constructor");

  }

}



class B extends A {

  B(int i) {

    super(i);

    System.out.println("B constructor");

  }

}



class C extends B {

  C() {

    super(11);

    System.out.println("C constructor");

  }

}



public class MainClass {

  public static void main(String[] args) {

    C x = new C();

  }

}

A constructor
B constructor
C constructor

5. 22. Inheritance
	5. 22. 1.	Inheritance
	5. 22. 2.	Accessibility
	5. 22. 3.	Method Overriding
	5. 22. 4.	The extends Keyword
	5. 22. 5.	Deriving a Class
	5. 22. 6.	The keyword super represents an instance of the direct superclass of the current object.
	5. 22. 7.	Derived Class Constructors: Calling the Base Class Constructor
	5. 22. 8.	Overriding a Base Class Method
	5. 22. 9.	Type Casting
	5. 22. 10.	Inheritance, constructors and arguments
	5. 22. 11.	Combining composition and inheritance
	5. 22. 12.	Inheritance and upcasting.
	5. 22. 13.	Overloading a base-class method name in a derived class does not hide the base-class versions.
	5. 22. 14.	Cleanup and inheritance
	5. 22. 15.	Creating a Multilevel Hierarchy
	5. 22. 16.	Demonstrate when constructors are called in a Multilevel Hierarchy

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