Concept For Innerclass
Apr 3, 2014what does inner class do
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Sending Concept Including Another Concept As Content
Nov 23, 2012I use Jade an I'm able to send messages. Now I try to send a Message with not only integers or strings as content but with another concept as content. Here I want to send a Message of the Media, which contains any number of Trackdata.(I left out the import and other blabla stuff cause i is working)
add(new ConceptSchema(MEDIAINFO), Mediainfo.class);
add(new ConceptSchema(TRACKDATA), Trackdata.class);
//Mediainfo
cs = (ConceptSchema) getSchema(MEDIAINFO);
cs.add(CURRENTTRACK, (PrimitiveSchema) getSchema(BasicOntology.INTEGER), ObjectSchema.MANDATORY);
cs.add(TRACKINFOS, (ConceptSchema) getSchema(TRACKDATA), 1 , ObjectSchema.UNLIMITED);
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Concept Of Interface
Aug 22, 2014I am not getting the concept of interfaces.I know they are used to implement multiple inheritances.I also know the example that we create an interface car with certain methods so that a class like bmw which implements the car interface has to implement these methods.But I don't know how interfaces come handy?I don't know the meaning of a class calls a method using an interface?(i know that an interface can not be instantiated).
View Replies View RelatedInterface Concept In Java
Aug 23, 2014I am having a hard time trying to understand interface concept.
-what is an interface?
-What the use of an interface?
-what does implement or to implement means?
-What does implementation means?
Understanding Concept Of Static Method
Jun 13, 2014I know that static method cannot use non-static methods .Then how the following code works ,where main method is static and this main method calls go() method which is a non-static method .
import javax.swing.*;
import java.awt.event.*;
public class SimpleGuib implements ActionListener {
JButton button;
public static void main(String[] args) {
SimpleGuib gui = new SimpleGuib() ;
gui.go() ;
[code]....
Grasping Concept Of Throwing Own Exceptions
Dec 3, 2014I am having some difficulties grasping the concept of throwing your own exceptions. How do I get this to repeatedly ask the user to enter a valid value for hours. Also i am having difficulties in the method with using the throw new InvalidHrExcep("That value is invalid"); i cannot get this to work.
public class exceptionProgram {
static Scanner console = new Scanner(System.in);
public static void main(String[] args) throws InvalidHrExcep
{
int day=0;
int month = 0;
int year=0;
int hours=0;
int minutes=0;
int seconds=0;
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Servlets :: Unable To Understand JSP Session Concept
Mar 10, 2015Any brief introduction about session in java....
View Replies View RelatedWrite A Class Encapsulating Concept Of A Circle?
Mar 19, 2014Prompt: Write a class encapsulating the concept of a circle, assuming a circle has the following attributes: a Point representing the center of the circle, and the radius of the circle, and integer.
Include a constructor, the accessors and mutators, and methods toString and equals.
Also include methods returning the perimeter ( 2 x ๐ x ๐ ) and area ( ๐ x ๐^2) of the circle.
Write a client (application) class to test all the methods in your class. I started out trying to thing how to do this and I mapped out a certain idea but do not know how to incorporate the point represent the center of the circle. I am not sure how to proceed further..
import java.awt.*;
public class Circle {
ย public static void main(String[] args) {
ย
final double PI = 3.14;
int x,y, radius = 4;
double area;
double perimeter;
ย
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