How to use junit for a java class in netbeans

hi friends,
im new to java(fresher) and i need step by step creation of junit class for a java class in net beans6.5.so anybody plz explain me in detail.......

Hi venkatakrishna.chaithanya,
With NetBeans :
- hit F1 to get the Help screen;
- select the Search tab;
- enter the word junit;
- in the left pane, select *7 Creating a JUnit Test*;
- read the intructions displayed in the right pane.

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How to use C-Structure in java applets

hi alls,
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class renk
int r;
int gr;
int b;
import java.awt.Graphics;
import java.awt.Color;
import java.awt.Event;
import java.applet.Applet;
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int x[] = new int[n];
int y[] = new int[n];
int count = 0;
renk clr[] = new renk[n];
public void init()
setBackground(Color.black);
public boolean mouseDown(Event yordam, int xyer, int yyer)
if (count<n)
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ekle(xyer,yyer);
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int r1 = (int)Math.floor(Math.random()*256);
int gr1 = (int)Math.floor(Math.random()*256);
int b1 = (int)Math.floor(Math.random()*256);
clr[count].r = r1;
clr[count].gr = gr1;
clr[count].b = b1;
x[count]=xyer;
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count++;
repaint();
public void paint(Graphics g)
it gives error message... how can � use struct model in java applets???
if you help me i will be greatfull....

� use import but it doesn't work.
i add: import renk; or import class renk;
how will � add import I assumed based on your initial post that the renk and benek classes were in the same file. Apparently you're saying they are not. So for another thing, make your renk class "public class renk", and add the "public" keyword to the 3 members of that class. Then if your code still doesn't see the "renk" class, it would just be that you don't have the directory that contains the compiled "renk.class" in your classpath.

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i have just begun to learned jsp and java recently, so have the question below:
Situation:
My boss asked me to do a project for doing online data mining.
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2. When the user click the buttom in the website, then the java class have to be invoked.
Questions:
1. ask i put the .java in the server, i can simply use cmd and type the following command:
java -Xmx800M P05context 1 1 3 6 F01xyz.txt F10xyz.txt
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but the tomcat server reply a internal error to me
how cani do ?
the jsp file-->
<jsp:useBean id="test" scope="session" class ="P05context" />
<html>
<head></head>
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</body>
</html>

I still don't see why the form (the origin of the request) has to be a JSP, As you say, it might be static but forms I've written have usually had some kind of menu framework arround them and other variables. Also if the input is invalid you usually want to re-present the form, with an error message and the fields pre-populated according to what the user put in before. That does require a JSP and you may as well use the same JSP for an empty, as for a rejected request.
the response to the form should be handled by a servlet. Both is HTML, but the
form is static, and the reply dynamic. Using the combination; a servlet to do the data processing and a JSP to format the results is more flexible in a number of ways. For example, suppose you find the need to present the data form in, say, Greek? You don't want the processing to be duplicated in English and Greek versions of the results JSP.
Suppose the boss wants to turn a graphics designer loose on your HTML. Don't want him mucking about with your processing code do you.
The servlet typically takes the function of controller in the model/view/controller paradigm.
Code in a servlet is cleaner, better formatted and easier to access with a debugger.

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Hi friends,
I have a question on how to use i for IF condition in a loop, in order to get an efficient programming and results. Here is outlined SQL:
cursor is
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open cursor
loop
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for i in 1..3 loop
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user508774 wrote:
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v_cmd := 'UPDATE parts_categ_counts SET w1='||v1||', w2='||v2||...||v9||' WHERE seq='||vseq||';
EXECUTE IMMEDIATE v_cmd;This code is also wrong. Besides the fact that there is no need for dynamic SQL, this approach creates a brand new SQL statement each loop iteration.
SQL is source code. It needs to be parsed (compiled). The end result is an executable program that is called a cursor. This cursor needs to be stored in server memory (the SQL Shared Pool in the SGA).
The problem with your code is that it is slow and expensive - it generates lots of unique SQL statements that need CPU for parsing and server memory for storage.
These add up to a very significant performance overhead. That is the wrong approach. The correct approach is the same one that you would use in any other programming language.
Let's say you need to use Java to process a bunch of CSV files - exact same CSV layout used by each file. A file needs to be read, processed, and a log file created.
Will you write a Java program that loops through the files, for each file found, write a Java program for processing that file, compile it, then execute it?
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The 2nd approach provides a program that can process any of those CSV files - one simply needs to pass the filename as an input parameter.
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The main reason for using PL/SQL it to provide processing flow control, conditional processing and error handling, for SQL code. As the SQL language does not have these features.

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http://wiki.eclipse.org/EclipseLink/Examples/JPA
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thank you
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http://www.eclipselink.org

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