Inheritance modifiers class Class Name extends Existing Class

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Inheritance ﺍﻟﻮﺭﺍﺛﺔ

Inheritance ﺍﻟﻮﺭﺍﺛﺔ

modifier(s) class Class. Name extends Existing. Class. Name modifier(s) { member. List }

modifier(s) class Class. Name extends Existing. Class. Name modifier(s) { member. List }

Inheritance: class Circle Derived from class Shape public class Circle extends Shape {. .

Inheritance: class Circle Derived from class Shape public class Circle extends Shape {. . . } Java Programming: From Problem Analysis to Program Design, Second Edition 5

public class Saving. Account extends Bank. Account // The Saving. Account constructor { public

public class Saving. Account extends Bank. Account // The Saving. Account constructor { public Saving. Account(double rate) { interest. Rate = rate; } // add. Interest method public void add. Interest() { double interest = get. Balance()*interest. Rate/100; deposit(interest); } // The Saving. Account instance variable private double interest. Rate; }

UML Class Diagram: class Rectangle Java Programming: From Problem Analysis to Program Design, Second

UML Class Diagram: class Rectangle Java Programming: From Problem Analysis to Program Design, Second Edition 20

UML Class Diagram: class Box Java Programming: From Problem Analysis to Program Design, Second

UML Class Diagram: class Box Java Programming: From Problem Analysis to Program Design, Second Edition 21

class Box public void print() { super. print(); System. out. print("; Height = "

class Box public void print() { super. print(); System. out. print("; Height = " + height); } public void set. Dimension(double l, double w, double h) { super. set. Dimension(l, w); if (h >= 0) height = h; else height = 0; } public double area() { return 2 * (get. Length() * get. Width() + get. Length() * height + get. Width() * height); Java Programming: From } Analysis to Program 23 Problem Design, Second Edition

Defining Constructors of the Subclass • Call to constructor of superclass: – Must be

Defining Constructors of the Subclass • Call to constructor of superclass: – Must be first statement. – Specified by super parameter list. public Box() { super(); height = 0; } public Box(double l, double w, double h) { super(l, w); height = h; } Java Programming: From Problem Analysis to Program Design, Second Edition 25

Objects my. Rectangle and my. Box Rectangle my. Rectangle = new Rectangle(5, 3); Box

Objects my. Rectangle and my. Box Rectangle my. Rectangle = new Rectangle(5, 3); Box my. Box = new Box(6, 5, 4); Java Programming: From Problem Analysis to Program Design, Second Edition 26

Modifiers Mrs Paige Misplaced Modifiers Misplaced Modifiers WhatModifiers Mrs Paige Misplaced Modifiers Misplaced Modifiers What
MODIFIERS Misplaced Modifiers Misplaced Modifiers A misplaced modifierMODIFIERS Misplaced Modifiers Misplaced Modifiers A misplaced modifier
DANGLING MODIFIERS DEFINITION OF DANGLING MODIFIERS Modifiers whenDANGLING MODIFIERS DEFINITION OF DANGLING MODIFIERS Modifiers when
GRAMMAR MISPLACED MODIFIERS DANGLING MODIFIERS WHAT ARE MODIFIERSGRAMMAR MISPLACED MODIFIERS DANGLING MODIFIERS WHAT ARE MODIFIERS
Misplaced and Dangling Modifiers Misplaced modifiers Modifiers needMisplaced and Dangling Modifiers Misplaced modifiers Modifiers need
MODIFIERS What are Modifiers Modifiers are words orMODIFIERS What are Modifiers Modifiers are words or
extends class Car extends Vehicle class contents Seeextends class Car extends Vehicle class contents See
extends extends java lang Enum java lang Enumextends extends java lang Enum java lang Enum
Blender Modifiers Modifiers NonDestructive they do not modifyBlender Modifiers Modifiers NonDestructive they do not modify
MODIFIERS Introduction to Modifiers Correct modifier use isMODIFIERS Introduction to Modifiers Correct modifier use is
Modifiers Used for Comparison Day 1 MODIFIERS USEDModifiers Used for Comparison Day 1 MODIFIERS USED
Understanding Comparison of Modifiers How are modifiers usedUnderstanding Comparison of Modifiers How are modifiers used
Understanding Comparison of Modifiers How are modifiers usedUnderstanding Comparison of Modifiers How are modifiers used
GRAMMAR MISPLACED MODIFIERS DANGLING MODIFIERS Components to coverGRAMMAR MISPLACED MODIFIERS DANGLING MODIFIERS Components to cover
Understanding Comparison of Modifiers How are modifiers usedUnderstanding Comparison of Modifiers How are modifiers used
Parallelism Misplaced Modifiers Dangling Modifiers Faulty Subordination andParallelism Misplaced Modifiers Dangling Modifiers Faulty Subordination and
Understanding Modifiers What are modifiers Adjectives and adverbsUnderstanding Modifiers What are modifiers Adjectives and adverbs
WRITTEN EXPRESSION DANGLING MODIFIERS MODIFIERS WHAT ARE THEYWRITTEN EXPRESSION DANGLING MODIFIERS MODIFIERS WHAT ARE THEY
Misplaced Modifiers Misplaced Modifiers Read the sentence LocateMisplaced Modifiers Misplaced Modifiers Read the sentence Locate
Modifiers Modifiers n A modifier is a wordModifiers Modifiers n A modifier is a word
DANGLING AND MISPLACED MODIFIERS DANGLING AND MISPLACED MODIFIERSDANGLING AND MISPLACED MODIFIERS DANGLING AND MISPLACED MODIFIERS
Correcting Misplaced Dangling Modifiers Part 1 Modifiers inCorrecting Misplaced Dangling Modifiers Part 1 Modifiers in
Misplaced and dangling modifiers Modifiers Adjectives and adjectiveMisplaced and dangling modifiers Modifiers Adjectives and adjective
Understanding Modifiers What are modifiers Adjectives Adverbs PhrasesUnderstanding Modifiers What are modifiers Adjectives Adverbs Phrases