?
Solved

What does this class do in Java?

Posted on 2007-03-28
7
Medium Priority
?
183 Views
Last Modified: 2010-03-31
What does this class do in Java? What is an exception in Java?
package org.muos.management.managementSupport;

/**
 *      The wrapper exeption which wrap the underline exceptions.
 *
 */
public class ManagementSupportException extends Exception {
      private String message;

      public ManagementSupportException(String message) {
            this.message = message;
      }
}
0
Comment
Question by:yankeebushsoftware
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
7 Comments
 
LVL 8

Accepted Solution

by:
mnrz earned 1200 total points
ID: 18813943
it does nothing, it is just an Exception and can be thrown by code like this:

throw new ManagementSupportException();
0
 
LVL 8

Assisted Solution

by:mnrz
mnrz earned 1200 total points
ID: 18813947
Although you may use "throw new Exception()" but this is much clear and better to categorize your exceptions
0
 

Author Comment

by:yankeebushsoftware
ID: 18813950
What's an exception?
0
Optimize your web performance

What's in the eBook?
- Full list of reasons for poor performance
- Ultimate measures to speed things up
- Primary web monitoring types
- KPIs you should be monitoring in order to increase your ROI

 
LVL 10

Assisted Solution

by:Jaax
Jaax earned 400 total points
ID: 18813966
This class serves as your application specific exception extended from the java's Exception class
By using a customized exception class for your application, you can add more features to the class whilst benefitting from those already present in the exception class. This reduces coding and maintainability - the benefits of inheritance.
It is like buying a new car and modifying it to a certain extent to suit your taste and style while maintaing the engine and transimission in tact.

The Exception class serves to indicate any abnormality the program encounters during the course of its execution. By throwing an exception the cause and nature of the problem is reported to the calling methods. It helps to diagnose the problem. Different kinds of exception  can point to different kinds of exceptional conditions or abnormalities.
0
 
LVL 8

Assisted Solution

by:mnrz
mnrz earned 1200 total points
ID: 18813987
consider this code:

int i = 0;
int j = 10;

j = j / i; //(1)

(1) this line throws an exception (error) because no number can divided into 0.

the thrown exception has a message like "Divide by Zero"

so you can catch this error by a try/catch block and display the message of error:

try{
    j = j / i;
}catch(Exception x){
    System.out.println(x.getMessage());
}

but you can define a new exception , say, DivideByZeroException like the code you mentioned

now:

try{
    j = j / i;
}catch(DivideByZeroException x){
    System.out.println(x.getMessage());
}


this is much better than former code because any programmer by a quick look at the code will understand what error might happen during this code.
0
 
LVL 37

Assisted Solution

by:zzynx
zzynx earned 400 total points
ID: 18814118
0
 
LVL 37

Expert Comment

by:zzynx
ID: 18814604
Thanx 4 axxepting
0

Featured Post

On Demand Webinar - Networking for the Cloud Era

This webinar discusses:
-Common barriers companies experience when moving to the cloud
-How SD-WAN changes the way we look at networks
-Best practices customers should employ moving forward with cloud migration
-What happens behind the scenes of SteelConnect’s one-click button

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

When we want to run, execute or repeat a statement multiple times, a loop is necessary. This article covers the two types of loops in Python: the while loop and the for loop.
In this post we will learn how to connect and configure Android Device (Smartphone etc.) with Android Studio. After that we will run a simple Hello World Program.
The goal of the video will be to teach the user the concept of local variables and scope. An example of a locally defined variable will be given as well as an explanation of what scope is in C++. The local variable and concept of scope will be relat…
The viewer will be introduced to the technique of using vectors in C++. The video will cover how to define a vector, store values in the vector and retrieve data from the values stored in the vector.
Suggested Courses

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question