Définissez les classes Document, Livre et Dictionnaire Définnissez pour public class Dictionnaire extends Document { System out print(unDocument Figure a un attribut privé Vector référençant toutes les instances de sa classe et de
TD correction
public class DerivedClass extends BaseClass { public void class Rectangle extends Figure { Creates an array of Contact objects, sorts them, then prints
Chap v
public class B extends A { public void m() { private Dessinable[] figures; public void +, qui est souvent utilisé dans les instructions print Exemple
Heritage Ploymorphisme
Figure toString() equals() J Sopena (INRIA/UPMC) Le polymorphisme en Java public class Homme extends Mammifère { public void print (Object arg) {
Polymorphisme
public class HelloWorldCanvas extends Canvas{ /** for (int x:tab) System out print(x); Une figure est une abstraction d'un rectangle et d'une ellipse
toutjava
Les relations entre classes refl`etent la décomposition du programme public class Point 1 public void initialise ( int abs , int ord ) 1 class PointColore extends Point 1 public void Les noms des arguments muets doivent figurer dans la signature d'une System out p r i n t ( ” nouveau t i t r e : ( vide pour f i n i r ) ” ) ;
L METI POO
You specify the main() method's header as public static void main(String[] of nested for statements along with System out print() to output a 10-row Implementation inheritance is inheritance through class extension 2 a generic shape)
bbm A F
ainsi définie class A {void f (int n, float x) { } public void g (byte b) { } } - Soient ces Pour l'instant, la classe Point n'est dotée ni de méthodes d'accès aux champs x et y, Class PointA extends Point {void affiche() System out println("Le mot "+mot+" figure "+nombre+" fois"); System out print ("donnez un entier : ") ;
Cours Revisions
What is the output when you try to compile and run the following code? public class Switch { public static void main(String[] args) { int i = 1; switch
E KeyF
Figure 4 The ChoiceQuestion Class is a Subclass of the Question. Class. Page 15. Implementing Subclasses. The subclass inherits all public methods from the
One say that the sub class inherits all the characteristics of the base public void print() { ... Which classes are needed to represent the figures?
One say that the sub class inherits all the characteristics of the base public void print() { ... Which classes are needed to represent the figures?
You specify the main() method's header as public static void The answer is false: a class cannot inherit constructors. ... a generic shape).
Design a class Complex having a real part (x) and an imaginary part (y). Provide methods to public class Rectangle extends Shape {.
30 jan. 2016 11.1.1: Classes inheritance
//using method implemented in abstract class - inheritance employee. public abstract class ShapeAbs implements Shape { ... System.out.print("" + s.
Inheritance is a mechanism which allows a class A to inherit public class Circle extends Figure { ... Printing the enum value is actually readable.
5.1 Write a program to create a class named shape. In this class we have three 6.2 Write a program to give example for multiple inheritance in Java.
What is the output when you try to compile and run the following code? public class Switch { public static void main(String[] args) { int i = 1; switch
Chapter 9