Java adapter class

Java adapter class

What is adapter class?
View Answers

October 27, 2010 at 4:48 PM

Hi,

Here is the andwer,

In the following program code, the adapter class has been used. This class has been used as an anonymous inner class to draw a rectangle within an applet. This example demonstrates the functionality of the mouse press. That is on every click of the mouse from top left corner, we get a rectangle on the release of the bottom right.

The following program demonstrates the functionality of adapter class.

import java.applet.*;
import java.awt.*; 
import java.awt.event.*; 

public class AdapterDemo extends Applet{
  public void init(){
    addMouseListener(
    new MouseAdapter(){
      int topX, bottomY;
      public void mousePressed(MouseEvent me){
        topX = me.getX();
        bottomY = me.getY();
      }
      public void mouseReleased(MouseEvent me){
        Graphics g = AdapterDemo.this.getGraphics();
        g.drawRect(topX, bottomY, me.getX()-topX, me.getY()-bottomY);
      }
    });
  }
}

Thanks.









Related Tutorials/Questions & Answers:
Java adapter class
Java adapter class  What is adapter class
Adapter Class
Adapter Class  Hello Everybody, Can anybody help me to describe what is Adapter class and when to use this class and give a suitable example... visit the following links: What is Adapter Class Example of Adapter Class
Advertisements
Adapter class
Adapter class  here may I use paint metod?If not then whats the error comes here
java class
java class  write a java program to display a msg "window closing" when the user attempts to close the window.(a) create a window class (b) create frame within the window class (c) extends window adapter class to display the msg
Java Glossary : Adapter Classes
The developer can then further subclass the adapter class so that he can override to the methods he requires. Implementing an interface directly, requires to write all the dummy methods
Java class
Java class  What is the purpose of the Runtime class
java class
java class  please send me the answer of the question which i have send according of java class assoon as possible . Write a java program to display.... a. Create a window class. b. Create frame within the window class. c. Extend
Version of com.cookingfox>eventbus-adapter-java dependency
List of Version of com.cookingfox>eventbus-adapter-java dependency
Version of com.cookingfox>logging-adapter-java dependency
List of Version of com.cookingfox>logging-adapter-java dependency
Java inner class and static nested class
Java inner class and static nested class  Java inner class and static nested class
Java Class Size
Java Class Size  How to determine size of java class
Java inner class
Java inner class  What are inner class and anonymous class
Version of co.openfin>openfin-desktop-java-adapter dependency
List of Version of co.openfin>openfin-desktop-java-adapter dependency
class method in java
class method in java  How to write a class method in Java?   You must read Java - Class, Object and Methods in Java
Java dictionary class
Java dictionary class  What is the Dictionary class
Example of HashMap class in java
Example of HashMap class in java. The HashMap is a class in java collection framwork. It stores values in the form of key/value pair. It is not synchronized
Java class file
Java class file  How do i open a java class file using eclipse
java anonymous class
java anonymous class  Can an anonymous class be declared as implementing an interface and extending a class
Java nested class example
Java nested class example  Give me any example of Nested Class.   Nested Class: Class defined within another class is called nested class. Nested class is divided into two parts- 1.Static 2.Non-static Static
converting java class to java fx class
converting java class to java fx class   i am working on a java project which would convert text to speech and speech to text. i have developed a java file that would work for text to speech. it is working fine as a .java file
java object class methods
java object class methods  What are the methods in Object class?  There are lots of methods in object class. the list of some methods are as- clone equals wait finalize getClass hashCode notify notifyAll
Java System class
Java System class  What is the purpose of the System class
abstact class - Java Beginners
abstact class  write a java program to implement an animal abstact class
Java math class
Java math class  Can you instantiate the Math class
java Math class
java Math class  Why are the methods of the Math class static
Java file class
Java file class  What is the purpose of the File class
Java abstract class
Java abstract class  Can an abstract class be final
java class - Java Beginners
java class  How to run a java class(Mail.java) automatically in tomcat server for a particular time
What is Calendar class in Java?
What is Calendar class in Java?  Hi, What is Calendar class in Java? I want to learn about this class to make use of it in Java programs. Thanks   Hi, java.util.Calendar is an abstract class in Java and its static
The nested class - Java Beginners
The nested class  Hi, What is nested class in Java? What is the benefits of nested class? Write examples of nested class. Thanks   .../java/n/java-nested-class.shtml Thanks
to create a java class and methods
to create a java class and methods  How to create a java class without using the library class to represent linked lists of integers and also provide it with methods that can be used to reverse a list & append two lists.Also
Abstract class and interface in Java
Abstract class and interface in Java  What is the difference between abstract class and interfaces in Java?   Differences between an interface and an abstract class: At the same time multiple interfaces can
How to create a class in java
How to create a class in java  I am a beginner in programming and tried to learn how to do programming in Java. Friends please explain how can I create a class in Java
Class and method question, Java?
Class and method question, Java?  Consider a Java class that you could use to get an acceptable integer value from the user. An object of this class.... implement the class in Java c. Write some Java statements that test the class
abstract class - Java Beginners
abstract class  what exactly is abstract class and in which cases its... and if possible send simple java programs showing its use.  Hi friend, In java programming language, abstract classes are those that works only
with out class - Java Beginners
with out class  can we write a program with out a class in core java?if yes,give example
Java component class
Java component class  Which method of the Component class is used to set the position and size of a component
Abstract class - Java Beginners
Abstract class  Why can use abstract class in java.?when abstract class use in java.plz Explain with program.   abstract class abs{ public void display(){ } public abstract void display1(); } public class win
compile a java class
compile a java class  Hi, Am having a class ExampleOne.java in the location C:\learn\ExampleOne.java I want the class file to be present in C:\. I don't want to add any package details in the code. Is is possible to get
compile a java class
compile a java class  Hi, Am having a class ExampleOne.java in the location C:\learn\ExampleOne.java I want the class file to be present in C:\. I don't want to add any package details in the code. Is is possible to get
class - Java Beginners
Class java.lang.nullpointerexception  When the class java.lang.nullpointerexception occurs
Java Nested Class
Java Nested Class         In Java programming language, when a class is defined within another... you execute a class with the Java interpreter, the runtime system starts
java class - Java Beginners
java class  Define a class product with the following data members 1.Product number int(Auto generated) 2.Product name char [20] 3.Price float... program to execute the above class ad functions for 5 products
Example of HashSet class in java
Example of HashSet class in java. In this part of tutorial, we will introduce you to about the HashSet class.  It is collection. It stores only unique. You can not store duplicate value. Java hashset example. How
Java KeyAdapter
Java KeyAdapter       This is an abstract adapter class used to receive keyboard events. This is the class is used to receive the keyboard events. It creates the keyListener objects
class Calendar - Java Beginners
class Calendar  Design the class Calender so that the program can... add the appropriate number of days to Monday, January1, 1500. for the class... the problem visit to : http://www.roseindia.net/java/java-get-example
class static - Java Beginners
class static  When do we declare a member of a class static?  Hi friend, public class HowToAccessStaticMethod{ int i; static int j... information on Static in Java visit to : http://www.roseindia.net/java/beginners
what is the size of java class
what is the size of java class  Could anyone tell me how to find the size of the class given below. public class Sample { private int x; private int y; private char ch; public static void main(String[] args) { Sample
java-wrapper class
java-wrapper class  dear people, may i know how to convert primitive data type into corresponding object using wrapper class with example please!!!   public class IntToIntegerExample { public static void
Java Class Diagram
Java Class Diagram  How to create a class diagram for the process of buying glasses from the viewpoint of the patient. The first step is to see an eye doctor who will give the patient a prescription. Once the patient has

Ads