Home Tutorialhelp Comment Inheritance

 
 

Comment

jayalal kk
Inheritance,
June 6, 2009 at 8:27 PM

Please deliver clarity on the below
how a base class can point to its derived class without knowing its existatnce in the class Heirarchy(Couse for the doubt, A base class reffernce can hold derived class object)

View All Comments | View Tutorial
Advertisement
Related Tutorial and Articles
Programming Tutorials

Inheritance,Inheritance in Java,Java Inheritance
kinds of inheritance are there in java.   Simple Inheritance  .... Java does not support multiple inheritance but the multiple inheritance can be achieved by using the interface. In Java Multiple Inheritance can be achieved 

Java Beginners

inheritance
inheritance  how does one implement inheritance in java 

Programming Tutorials

Java: Inheritance
Java: Inheritance More on virtual by default Nested Classes, Part 2 Copyleft 2004 Fred Swartz MIT License 

Java Beginners

inheritance
inheritance  hi.. pleaseeeeee i need a quick help(answer) in creating aprogrm in java by using inheritance for car in such away that .... Car is parent class and both of Private and Public Car extends it then both of Bus 

Core Java

Inheritance Example In Java
Inheritance Example In Java In this section we will read about the Inheritance... of Inheritance In the programming language there are various types of inheritance... the Inheritance in Java the Multiple inheritance is not supported. This reduces 

Java Beginners

What is Abstract classes in Java?
What is Abstract classes in Java?  What is Abstrack class in Java...,   Hi, In Java programming language we are used the Java Abstract.... That's why the Abstract class in Java programming language is used to provide 

Java Beginners

Inheritance in java - Java Beginners
Inheritance in java  I want a example program using the concept of (single and multiple) inheritance.  Hi Friend, Please visit the following link: http://www.roseindia.net/java/language/inheritance.shtml Thanks 

Java Beginners

java inheritance
java inheritance  ACME Bike shop has created a new scheme to reward...% and to the sales agents at a rate of 10%. Write a Java application... contain three classes, a SalesEmployee class, a SalesPerson class and a SalesAgent 

Java Beginners

multiple inheritance
multiple inheritance  why java doesn't support multiple inheritance? we can achieve this by using interface but not with classes? what is the main reason that java community implemented like 

Java Tips and Examples

Inheritance
kinds of inheritance are there in java.   Simple Inheritance  ... one base class into a single class is known as multiple inheritance. Java does... by using the interface. In Java Multiple Inheritance can be achieved through use 

Java Beginners

Multiple Inheritance
class so java any how do multiple inheritance? Can you please explain...Multiple Inheritance  All are saying java doesn't support multiple inheritance but by default Object class is super class for all the user defined 

Java Beginners

multiple inheritance - Java Beginners
)why java classes does not support Multiple Inheritance? JAVA CLASSES ONLY... Inheritance. Ans...>java classes doesn't support multiple inheritance,the practical...multiple inheritance  Why java does not support Multiple Inheritance 

Java Beginners

Multiple inheritance using interface - Java Beginners
visit the following link: http://www.roseindia.net/java/language...Multiple inheritance using interface  Hi, I understand.... But the use of the interface is when we use multiple inheritance with more than one 

Java-Tutorials

Concept of Inheritance in Java
Concept of Inheritance in Java Concept of Inheritance in Java is considered... class from parent class. Let's understand the concept of inheritance in Java... that is used for reusability purpose. There are three types of inheritance in java 

Java-Tutorials

Java classes
Java classes are like a group under which all objects and methods... examples that will help beginners in Java understand the definition of Java classes... of Java classes, object and its methods. Here in order to determine Area 

Java-Tutorials

Inheritance in Java
Inheritance in Java enhances the properties of the class, which means... of inheritance in Java: Simple Inheritance Multilevel Inheritance... of level. * Though Java does not support Multiple Inheritance it can be achieved 

General

Inheritance
kinds of inheritance are there in java.   Simple Inheritance  .... Java does not support multiple inheritance but the multiple inheritance can be achieved by using the interface. In Java Multiple Inheritance can be achieved 

Java Beginners

Inheritance - Java Beginners
Inheritance  pls help me!!! Question: write an inheritance hierachy for classes Quadrilateral,Trapezoid,Parallelogram, Rectangle and Square. Use... of the Quadrilateral. Write a program that instantiates objects of the classes adn outputs each 

Java Beginners

Inheritance java Example
Inheritance java Example  How can we use inheritance in java program... of inheritance. Inheritance is a way of establishing a subtype from an existing object..., whose method eat() has been accessed by its sub classes Cat, Dog and Goat 

Java Beginners

Inheritance and Composition - Java Beginners
://www.roseindia.net/java/language/inheritance.shtml Thanks Amardeep...Inheritance and Composition  import java.util.*; public class... arrangement in the design of your solution. In an object-oriented design of a Java 

Java Beginners

Multilevel inheritance - Java Beginners
Multilevel inheritance  Dear Sir, I'm posting you another question for which I need a more explanatory java coding(A lengthy one with more classes if possible) "Write a java program to create simple student object and inherit 

Java Beginners

Does Java support multiple inheritance?
Does Java support multiple inheritance?  Hi, Does Java support multiple inheritance? thanks   hi, Please visit the following link: http://www.roseindia.net/java/language/inheritance.shtml Hope 

General

Java Language
programming language.    Java Classes... Java Language       Java Comments To comprehend any programming language 

Java Beginners

java language
java language  Define a class named Doctor whose objects are records... method as well. Further, define two classes: Patient and Billing, whose objects... a Patient object and a Doctor object. Give your classes a reasonable complement 

Java Tips and Examples

Inheritance
Classes in Java      ... other features like creation and implementation of the object, Inheritance etc...; by calling the different functions from the different classes through 

Java Beginners

Java inheritance
Java inheritance   can the child access protected content of the parent if the child is in a different project   If you have considered different project as different package then the child cannot access the content 

Java Beginners

Inheritance - Java Beginners
information: http://www.roseindia.net/java/language/inheritance.shtml Thanks 

Core Java

Multilevel Inheritance in java
Multilevel Inheritance in java We are going to discuss about multilevel inheritance in java. The Multilevel inheritance is inherit of classes more than two classes. We use multilevel inheritance to create one-to-one ladder. " 

Java-Tutorials

Java : Multilevel Inheritance
Java : Multilevel Inheritance This section contains concept of multilevel Inheritance in java. Multilevel Inheritance : In multilevel inheritance more than two classes take part in creation of application. Super class is inherited 

Java Beginners

Multiple Inheritance Problem - Java Beginners
Multiple Inheritance Problem  Hello Friend why Multiple Inheritance is not supported by java???? one of the answer i got that if there are three methods i. void show() in 3 super-classes named as A,B,C and if i extends A,B,C 

Hibernate Interview Questions

Hibernate Query Language
Hibernate Query Language   Explain Hibernate Query Language(HQL) of Hibernate?   Hi Samar, Hibernate Query Language is a library for mapping relational database to java classes. It is similar in visual aspect to SQL 

Core Java

Inheritance
Inheritance        OOPs.... Abstraction 4. Inheritance In OOPs, these concepts are implemented through a class... we will discuss Inheritance briefly:  -- Inheritance is the mechanism 

Java Beginners

multiple inheritance.
multiple inheritance.  hello, can java support multiple inheritance???   hi, java does not support multiple inheritance 

Java Beginners

java inheritance
java inheritance  problem with following code.... class Employee { int empno; String name; String edesig; Employee() { empno=0; } Employee(int eno,String ename,String ed) { empno=eno; name=ename 

Java Beginners

Inheritance in java - Java Beginners
Inheritance in java  I want a example program using the concept of (simple and multiple) inheritance 

JSP Tutorials

Inheritance in java with example
Inheritance in java with example          Inheritance is one of the concept of the Object- Oriented programming. The advantage of using the inheritance 

Java Interview Questions

Java FontMetrics classes
Java FontMetrics classes  What is the difference between the Font and FontMetrics classes?  The Font class provides mappings to fonts... the characters of the language to their respective 'glyphs'. The FontMetrics class 

Programming Tutorials

Classes in java
many other features like creation and implementation of the object, Inheritance etc. For more details click on the following link Classes in Java 

Java Interview Questions

Java classes
Java classes  Which class is extended by all other classes 

General

Nested classes
Nested classes       Here is another advantage of the Java, an object-oriented programming language that allows us to define a class within another class, such classes 

Programming Tutorials

Classes and Objects
-oriented programming.  Nested Classes: One more advantage of Java... in September 2004  and added to the Java language through specification... Classes and Objects       Objects 

Java Interview Questions

java classes
java classes  Which class is the super class for all classes in java.lang package 

Java-Tutorials

Java Classes
Java Classes conducted online by Roseindia include an elite panel of some... that even a non-programmer can learn Java language within no time. The time behind... that if a beginner starts taking a Java classes online here, than he/she 

Java Beginners

inheritance - Java Beginners
inheritance  help me on inheritance concept in java specialy on overloading and overridding concept 

Java Interview Questions

Multiple Inheritance
Multiple Inheritance  Why Java Doesn't have Multiple Inheritance It is Advantage or Disadvantage.........   Hi Friend, When we extends... and inconsistencies Java does not support Multiple Inheritance. Thanks 

Java Technology Tutorials

Nested classes: Examples and tutorials
Nested classes: Examples and tutorials       Nested classes Here is another advantage of the Java, an object-oriented programming language that allows us to define a class 

Java Interview Questions

Java classes
Java classes  What is singleton pattern 

Java Interview Questions

java classes
java classes  What is the ResourceBundle class 

Java Interview Questions

Java classes
Java classes  What is the Properties class 

Java Interview Questions

Java classes
Java classes  Why default constructor of base class will be called first in java 

Core Java

Inner Classes In Java
Inner Classes In Java       There are 4 kind of classes that can be defined in a Java program, roughly... and powerful feature to the Java programming language.  -- These inner 

Java Beginners

( Inheritance,need help in Polymorphism, Overriding) - Java Beginners
( Inheritance,need help in Polymorphism, Overriding)  can any one please help me create this application,thank you Advanced Concepts with Classes( Inheritance, Polymorphism, Overriding) Employees in a company are divided 

Java Interview Questions

java classes
java classes  What is the difference between a static and a non-static inner class 

Java Beginners

Java Inheritance - Java Beginners
Java Inheritance  Since every object inherits from Object class, why the following statement is not true. Assuming the code tries to open a file then instead of using throws IOException why not use throws Object? import 

Java Interview Questions

Java Inheritance Concept.
Java Inheritance Concept.  Yesterday i got confused with following question in an aptitude exam. Question:Class A,B,C have method named doit(). Class B extends Class A,Class C extends Class B.How will you call method doit 

Java Beginners

how can i achieve multiple inheritance in java without using inheritance ?
how can i achieve multiple inheritance in java without using inheritance ?  how can i achieve multiple inheritance in java without using inheritance 

Java Beginners

Inheritance Overloading - Java Beginners
Inheritance Overloading  The problem is: I have this program: class Base{ int i = 1; int j = 2; Base(int i, int j){ i = i; j = j...://www.roseindia.net/java/beginners/constructoroverloading.shtml 

Programming Tutorials

An Overview of Java      Java is a programming language      Java is Object Oriented Programming
Methods and Classes     While going through the java language...; Java as a programming language Java is an Object oriented application programming language developed by Sun Microsystems. Java is a very 

Java Beginners

classes and data abstraction - Java Beginners
classes and data abstraction  Create a java program for a class named...://www.roseindia.net/java/language/inheritance.shtml Thanks... java code according to your requirement. Please implement following code 

Java Beginners

why java does not support multiple inheritance - Java Beginners
why java does not support multiple inheritance  hello friend, i knows that multiple inheritance is not supported in JAVA but this program looks ok then why we can not extends multiple classes in a single class, eventhough 

Java Beginners

Inheritance, abstract classes
Inheritance, abstract classes  Hi. I wish to thank you for answering... a little lost with child classes, but here goes and don't know what to call... field. I created two child classes of Account: Checking and Savings. Within 

Hibernate Tutorial Example

Hibernate Query Language
for the names of the Java Classes and properties. Hibernate Query Language is used.... Hibernate Query Language uses Classes and properties instead of tables and columns... Query Language uses Classes and properties instead of tables and columns 

Hibernate-Tutorials

Introduction To Hibernate Query Language (HQL)
Introduction To Hibernate Query Language (HQL) In this tutorial you will learn about Hibernate Query Language. HQL is an abbreviation of Hibernate Query Language. It is a powerful query language, inspired by SQL that the Hibernate uses 

Java Beginners

Inheritance and Composition - Java Beginners
Inheritance and Composition  import java.util.*; public class TestPet { public static void main(String[]kevs) { Scanner console=new Scanner(System.in); String type, name, home; int weight, years; char gender 

Java Beginners

Inheritance problem - Java Beginners
Inheritance problem  hello friend can u please help me that why this program is printing show method of Base_Class b=5 even though i am assigning the Base_Class object into the Super_Class reference i.e Super_Class bc=new 

Java Beginners

Inheritance and Composition - Java Beginners
Inheritance and Composition  CAN YOU FIND THE ERROR OF MY CODE JAVA.THIS IS A TEST CLASS.I CANT FIND THE ERROR,CAN YOU FIX IT FRIEND.THANK YOU SO MUCH. import java.util.*; public class TestPet { public static void main 

Java Technology Tutorials

Video Tutorial - Classes and Objects in Java
in Java programming language and how to declare these objects and classes in your... on object's internal state. Classes in Java In java programming language...Video Tutorial on Classes and Objects in Java teaches you with example code 

Java Tips and Examples

Abstract methods and classes
(); Abstract Class In java programming language, abstract classes...;  While going through the java language programming you have learned so many times the word abstract. In java programming language the word abstract 

Java Beginners

Inheritance - Java Beginners
of Inheritance within the java programming. class Points{ private double x... and set the center of thye base. THANKS SO MUCH. I am really a java beginner 

Java Beginners

Inheritance and Composition - Java Beginners
Inheritance and Composition  HELLO FRIEND THIS IS THE CODE,CAN YOU FIND WHAT IS THE ERROR AND IF ITS OK CAN YOU FIX IT .THANK YOU. public class Pet extends Animal { private String home, bite; //private Boolean bites 

Java Beginners

Java code to implement MULTIPATH INHERITANCE
Java code to implement MULTIPATH INHERITANCE  HI, I am new to java programming. I want to implement multipath inheritance in one java program...(Hierarchical and Multiple inheritance) Thanks in advance 

Programming Tutorials

Classes in Java
Classes in Java      ... java have mechanisms for handling exceptions. This is known as catching exception in Java. The exceptions that occur in the program can be caught using try 

Java Beginners

Inheritance and Composition - Java Beginners
Inheritance and Composition  HELLO FRIEND THIS IS THE CODE,CAN YOU FIND WHAT IS THE ERROR AND IF ITS OK CAN YOU FIX IT .THANK YOU.10000X THANK YOU.HOPE YOU HELP ME. public class Animal { private int lifeExpectancy, weight 

Java Beginners

Inheritance and Composition - Java Beginners
Inheritance and Composition  HELLO FRIEND THIS IS THE CODE,CAN YOU FIND WHAT IS THE ERROR AND IF ITS OK CAN YOU FIX IT .THANK YOU. THANK YOU.HOPE YOU HELP ME.i think theres one error can u fix the error friend .thank u public 

Java Beginners

java classes. - Java Beginners
java classes.  I con not understand the behavior of anonymous inner classes?   Hi friend, I am sending you a link. This link will help you. Please for more information. http://www.roseindia.net 

Java Beginners

doubt in inheritance program - Java Beginners
doubt in inheritance program  how will we get the result 6 2 5 in the inheritance program in the given example i got 6 &2 but i am confused about 5 

Java-Tutorials

Inheritance in Java 7
This tutorial describe concept of Inheritance. It is one of OOPs concept 

Java Beginners

JAVA CLASS INHERITANCE
JAVA CLASS INHERITANCE  Someone please help me write this program. Create a class called Accounts that has the following members: i)An instance integer variable called acc_no. ii) An instance string variable called acc_name. ii 

Java Beginners

Java code to implement MULTIPATH INHERITANCE
Java code to implement MULTIPATH INHERITANCE  Hi, I am new to java .so please write code for this inheritance example... Student | ----------- | | Test Sports 

Java Beginners

Java list of uninstantiated classes
Java list of uninstantiated classes  Java list of uninstantiated classes 

Development process Questions

Interfaces and Abstract Classes - Development process
Interface and Abstract Classes?  Hi Friend, Interface: Java does not support Multiple Inheritance but the multiple inheritance can be achieved by using the interface. Interfaces are useful when you do not want classes 

Java Beginners

Helper classes in java
Helper classes in java  helper classes 

Java Beginners

inheritance - Java Beginners
 

Java Beginners

Inheritance - Java Beginners
 

Java Beginners

multiple inheritance - Java Beginners
 

Java Tips and Examples

Java as an Object Oriented Language
Java as an Object Oriented Language   ... language because object is at the outer most level of data structure in java. No stand... will discuss the OOPs concepts along with their role in developing the java 

Java Beginners

GWT supported java classes
GWT supported java classes  What are the methods and classes in Java which are supported and unsupported by GWT 

Java Tips and Examples

Inheritance in Java with example
Here we are going to discuss Inheritance in Java with a simple example... for inheritance in Java. Inheritance is used in java for the reusability of code... of java.lang.Object.java. Java supports three types of inheritance, they are: Simple 

Java Beginners

fully object oriented language - Java Beginners
fully object oriented language  Is java is a fully object oriented language?if no,why?  Hi Friend, Java is not a fully object oriented language because of the following reasons: 1)It uses primitive data type like 

Hibernate Questions

Hibernate Query Language (HQL)
Hibernate Query Language (HQL)  What is Hibernate Query Language (HQL)?   HQL is much like SQL and are case-insensitive, except for the names of the Java Classes and properties. Hibernate Query Language is used 

General

Basic Java Language Elements
Basic Java Language Elements      ... in the program.   Java Comments To comprehend any programming language... is what you get.     Java Classes 

Java-Tutorials

Inheritance program in java
In this tutorial we will discuss examples of Simple Inheritance in Java and Multilevel Inheritance in Java. Inheritance is an OOPS (Object Oriented... in Java. The concept of inheritance is used to make the things from general to more 

Java Beginners

Collection classes in java
is the reason using java collection classes saved/stored the data/content.I don't understand, what is the idea using java collection classes in project. Or the data is stored in both database and java collection classes 

Java Beginners

Collection classes in java
is the reason using java collection classes saved/stored the data/content.I don't understand, what is the idea using java collection classes in project. Or the data is stored in both database and java collection classes 

Java Beginners

( Inheritance, Polymorphism, Overriding)i need help - Java Beginners
( Inheritance, Polymorphism, Overriding)i need help  Advanced Concepts with Classes( Inheritance, Polymorphism, Overriding) i need help to create this application,than you Employees in a company are divided into the classes 

Java Beginners

wrapper classes
of the primitive wrapper classes in Java are immutable i.e. once assigned a value...wrapper classes  Explain wrapper classes and their use?   Java Wrapper Class Wrapper class is a wrapper around a primitive data type 

Java Technology Tutorials

Java as an Internet Language
Java as an Internet Language       Java is an object oriented language and a very simple language... (JRE). Support to Internet Protocols: Java has a rich variety of classes 

Java Beginners

Java application that uses the classes and
Java application that uses the classes and   i have this class diagram with three classes: Curriculum, Course, and Lecture. Your class diagram...) I wish Write a Java application that uses the classes and methods above 

Java Beginners

inheritance code program - Java Beginners
inheritance code program  class Point { private int x ; private... QUADRANT IF ITS 1,2,3,4 QUADRANT. EXAMPLE OUTPUT: Using inheritance example...: http://www.roseindia.net/java/master-java/interface.shtml Thanks. Amardeep 

Java Beginners

Inner classes
Inner classes   Hi I am bharat . I am student learning java course . I have one question about inner classes . question is how to access the instance method of Non-static classes which is defined in the outer 

Advertisements Advertisements
 

 

 

DMCA.com