The naming conventions for coding Java applications are clear to me. I'm wondering what the best practices are for naming Java projects e.g. when creating a new project in NetBeans IDE or in BitBucket?
View RepliesBelow I've attached a screenshot of how I've been naming my various java projects as I go through my current textbook. I'm not sure if I'm naming them correctly. I'm on chapter 5 of Introduction to Java Programming by Y. Daniel Liang and he is currently discussing methods and classes. I'm not sure what my projects would be considered (methods, classes, or something arbitrary like projects). Further, if I wrote a program, like loanCalculator215 for example, how could i call that in a different program, like primeNumbers?
View Replies View RelatedI'm currently reading Head First Java and want to use the topics shown in the book while I read it to master them. What are some good projects that can be used to practice all the skills taught in the Head First Java book while I read it?
View Replies View Relatedmy course material is due for term 1 of my cert 4 programming course, but My lecture will not pass my java projects because there is no source files generated for them in the net beans project structure, tried building, cleaning and building, all i can think of?, tried IDE's 7.4 and 8.0 .
View Replies View Related1) I have a file .java with some great functions, this functions i need use in all projects, then what is the easy by moment i start a project, and copy this file to project.. is possible have only 1 file with these utilities functions? (if yes how to declare or use in all projects?)
Note these utilities file i want use on JAVA desktop(swinf and javafx), on JSP webpages and in the futhurer on the mobile.
2) I have a JSP project in 1 .JSP file i have 8 Tabs (CSS tabs) when user click on tab1 i execute some jsp java code. and if user click on tab2 i execute a different JSP code, but my problem is, the JSP file is large large large, 1500 lines, my question is: is possible (similar in PHP) do an include?
<%
include tab1.jsp
%>
I want to know if a java class name can be declared as "pack1.ClassName". I know the naming conventions rules. I know that this kind of names are not supposed to be used. But I am just curious of whether Java accepts such kind of names also i want to know if $ClassName, _ClassName are valid for classname and are the being used anywhere in the application development.
View Replies View RelatedSo I'm not entirely sure what to name my packages. Sometimes I have to many and it becomes overwhelming. Sometimes I don't have enough and I cannot keep my files organized. What is a good naming convention for Java packages?
View Replies View RelatedWhy is this not valid in java:
Both uses public with the same class/interface name.
Test.java:
public class Test implements Test{
/// Some codes
}
public interface Test {
///Some methods
}
I'm finishing my data structures class and looking for internships and trying to prepare myself for real world application of things I've learned. I'm trying to figure out what sort of project I can start or start over winter break that would use the new data structures I've learned (BSTs, Heaps, Hash Tables, etc). We have been implementing these from scratch but would I be using a library for these on the job? If so, should I implement them that way instead? I have a registrar project from my first data structures class where I used a linked list and then an array list to take care of the different students, classes, and instructors. Maybe I should clean that up and just use that?
how these data structures can be used in non-trivial situations and why I should use one over another. I just don't know a good place to start.
I'm making a program in which I'm required to create objects that represent employees. My instructions for the driver say to "Create a new Person [] called staff initialized to the following object - fred, barney, wilma, betty, wilma2." The information such as name, year hired, ID number, etc. is given.I couldn't figure out the syntax to give each employee a specific name, so I just wrote what I knew.
Person[] staff = new Person [5];
staff[0] = new FullTime ("Flintstone, Fred", 2005, "BR-1", 65000.12);
staff[1] = new Adjunct ("Rubble, Barney", 2006, "BR-2", 320, 48.55);
staff[2] = new FullTime ();
staff[3] = new Employee ("Rubble, Betty", 2011, "BR-4");
staff[4] = new FullTime ("Slate, Wilma", 2009, "BR-3", 48123.25);
It works for my methods to calculate things such as number of years of employment and print a paragraph about each employee. The problem is that giving each object a name is actually necessary, since I have to update the default [2] to have information given not in the Person type levels (It goes Person→Employee→Fulltime and Adjunct) but in the driver itself and then compare it to [4]. Wilma is supposed to be [2], and Wilma2 is supposed to be [4]. how to format these objects to have the distinct names (for the objects themselves, not just the string name) of the people?
I have an application separated into three different projects - core, command line version and Web UI version.
Core contains all the business logic in several services classes. Command line version and Web UI version both uses the core project services.
Command line have main class which call services from core. Web UI version is Spring base application using same services from core.
Java Code:
CoreProject
- src
- Service Classes (code here use thirdParty jars and core_file.txt)
- lib
- thirdParty.jar
- core_file.txt mh_sh_highlight_all('java');
[Code] ....
Now I want to give two separate versions to client.
Command line version to run as service in Windows andUI version to deploy in their server.
With above structure I create the cmdline.jar but when I am trying to run with
Java Code: java -jar cmdline.jar mh_sh_highlight_all('java');
I am getting java.lang.NoClassDefFoundError exception for the service classes in core. So my question is how to pack/generate jar for this kind of distribution?
I know the normal way of naming objects is
Pipe pipe1 = new Pipe
but I want the objects to be made inside a loop and named after how many times the loop have been gone through so I tried
Pipe pipe(numberOfTimes) = new Pipe
where numberOfTimes was a variable counting the loops. This is not working.I need the naming to be pipe1, pipe2, pipe3 etc depending on how many times the loop have been pased
Scanner keyboard = new Scanner (System.in);
String morePipes = ("yes");
int dimRor;
int numberOfPipes = -1;
[code]....
Which is considered clearer and better for naming?
class SpeedAnimation {
//rate to increment frames at 0 speed
public float baseIncrementRate;
//additional rate to increment frames at, scaled by the speed
public float speedIncrementMultiplier;
//current fractional frame index
public float currentFrameIndex;
//give the upper and lower index bounds to animate between
public int startingIndex;
public int endingIndex;
}
vs.
class SpeedAnimation {
//rate to increment frames at 0 speed
public float base;
//additional rate to increment frames at, scaled by the speed
public float multiplier;
//current fractional frame index
public float index;
//give the upper and lower index bounds to animate between
public int start;
public int end;
}
I've always been really elaborate with my names, because I thought that being more descriptive is more precise and lowers the chance that names might clash with each other, but then I noticed that a lot of my code becomes really lengthy and tiring to read, ie.:
float speed = body.getVelocity().len();
float positionIncrement = (baseIncrementRate + speedIncrementMultiplier * speed) * deltaTime;
currentFrameIndex += positionIncrement;
currentFrameIndex = currentFrameIndex % (startingIndex+endingIndex-1) + startingIndex;
If this is the C Programming codes for disabling the USB port:
system("reg add HKEY_LOCAL_MACHINESYSTEMCurrentControlSetSer vicesUSBSTOR /v Start /t REG_DWORD /d 4 /f");
How can I use the codes below in Java using Netbeans?
Create a Java Application in NetBeans with the following two classes.
1. A Java class College
o Use the following data fields:
College Name
College City
Number of Tracks
Number of Students
Number of Faculty
Number of Staff
o Implement an empty constructor
o Implement a full constructor
o Implement Setters and Getters (Mutators and Accessors)
o Implement SetAll() method with all data members as parameters
2. Another Java class called CollegeDemo with the main() method:
o In the main():
o Read the values of the fields of 3 colleges from a text file and for
each create a College object.
Filename: colleges.txt
IT Dubai 7 200 50 20
ENG Abudhabi 4 400 60 20
SCIENCE Sharjah 3 300 40 20
First with empty constructor then uses setters.
Second with full constructor (no need to use setters).
Last one with empty constructor and SetAll() setter.
o Display the average number of students for all the 3 colleges.
o Change the value of ‘Number of Students’ in the SCIENCE College to
500, and display the average number of students again.
here my code :
public class Demo {
private String name ;
private String city;
private String cname ;
[code]....
I would like a small box to be able to enter a contacts information and I started with building it thru netbeans. Now I am thinking I should start from scratch so I understand everything. What should I do? I am having trouble making the buttons at the bottom work. All I would like to be able to do is setFrameVisible(false); but I can't seem to be able to do that without loosing the whole project not just the frame I am working on.
The buttons I am referencing are the Cancel & Accept
public class pa4GUI extends javax.swing.JFrame
{
String ph;
String ln;
String fn;
String em;
String or;
[code]....
I'm reasonably new to Java and NetBeans.
I'm developing an SE Java application which allows the user to view a database that I've created. I've done the data binding to a JTable but don't see any data. I've read the Derby/Java DB manual and it seems that I need to put data into this Embedded database (single table). All I want to know is how to put the data in - can I copy the files from '.netbeans-derby' folder or do I have to utilise another method?
I have two JComboBox the first contains a list of patients, the second a list of antibiotics I want to make a button when I chose an antibiotic and a patient they will be added in my database (sql server)
View Replies View RelatedI would like to use java se api names like, undo, redo, stylededitorkit, htmleditorkit in editorpane swing. So, I don't understand how to use these apis.
View Replies View RelatedI am suppose to submit my project as a WAR file but not sure how to do it.
View Replies View RelatedI have a couple .java examples I want to mess with but don't know how to get them into Netbeans so I can work with them. What is the process in loading a .java into Netbeans so I can work with the code and run it in Netbeans?
View Replies View RelatedI am developing a program in netbeans forms. I've got to a point where I will click a jButton to print the content of either JFrame or JPanel. I am using Netbeans forms to develop the project....
View Replies View RelatedI need to copy my neatbean code to word, (school stuff) now I know this is possible, cause I see it on internet often.
I tryed copying it to notepad++ and then to word... wont work the code will still all black.
how to send emotions in a chat application built in java using netbeans ?
View Replies View Relatedtry {
File configFile= new File("C: Documents and SettingsstudentMy DocumentsNetBeansProjectsCDASsrcconfig.xml ");
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
Document doc = dBuilder.parse(fXmlFile);
doc.getDocumentElement().normalize();
NodeList nList = doc.getElementsByTagName("config");
[Code] .....
This code is working properly but i have use path like this
File configFile= new File("srcconfig.xml");
Instead of system directory path i have to use path inside of project but i am getting an error-cannot find the specified file...
I am trying to create a program in NetBeans GUI builder and I am having trouble creating the 2D array. Here is what I have come up with so far:
private void enterButtonActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
double time = 0;
try{
time = Double.parseDouble(timeText.getText());
[Code] ....
Right now it is printing what i need but I need to separate columns, not rows.