Include EAR File In Classpath?

Jan 23, 2014

I am writing an Ant script using the javac command but the library I need is bundled in an ear file, how can I reference this jar in ear file without extracting the ear file.

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Runtime Classpath And Compile Time Classpath?

Jan 9, 2014

I compiled a program with a JAR in the classpath. Also ran it with the JAR passed with classpath. For instance I used MySQL .jar.

So I feel it was required in both classpath. I have heard the Servlet API jar is also an example of what is needed at compile time.

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JVM - Classpath From A File Or MainClass From Outside Jar?

Sep 19, 2014

I need to start a new JVM. To do this my (production-) code pick a certain jar and starts a class in it. The name of this class is not fix. The picked jar has other jars in its Manifest class path section.
 
For my tests I want to replace my jars red from the main jar with the compile target folders of my Eclipse projects that make up my Application.
 
Getting that folders is quite easy because i configured the Starter project to depend on the other Projects of my app so that they are available via System.getProperty("java.class.path"). But eclipse creates absolute path in there. The result is that I cannot use the output of System.getProperty("java.class.path") as command line parameter, it's simply to long.
 
I tried to put the class path in a temporary jar file but it looks like that the jars class path is not added to the resulting class path when i is simply added as another classpath entry at command line. On the other hand I cannot run this temporary jar file via -jar option because the main class cannot be found if it is not located in the temporary jar...
 
Meanwhile I found that the main problem is not so much the other Projects but the 3rd party libs which eclipse refers them in their maven repository location. They blow up my classpath. I tried to convert their paths to relative but this didn't change that much...
 
So my question is:
1. is there a way to provide the classpath in a text file to java executable on command line?
2. is there a way to run a jar with the -jar option if the main class is outside the jar (but within the classpath in the jars manifest)?
3. is there any other way to solve my problem resulting from the limited command line length?

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How To Include Java File In All Projects

Mar 23, 2015

1) 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
%>

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Entering CLASSPATH In Manifest File When Directory Is Not In Root?

Jul 1, 2014

I'm trying to add a CLASSPATH to a manifest file linking (not sure If that's the right word) to an sqljdbc4.jar file.

If I copy the file Into my root folder and use CLASSPATH: sqljdbc4.jar It works fine.

Class-Path: sqljdbc4.jar
Main-Class: com.ncntech.go

If I try CLASSPATH: C:Program FilesMicrosoft JDBC Driver 4.0 for SQL Serversqljdbc_4.0enusqljdbc4.jar I receive a "Could not find or load main class" error.

Class-Path: C:Program FilesMicrosoft JDBC Driver 4.0 for SQL Serversqljdbc_4.0enusqljdbc4.jar
Main-Class: com.ncntech.go

Is the syntax correct for specifying a directory path ?

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Create A Database Configuration File And Include All Other Files

Apr 19, 2014

I am creating an application in core java where i am using database. I need to create a database configuration file & include it all other files. So, how can i do that ?

Java Code:

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con = DriverManager.getConnection("jdbc:odbc:MYDSN","system","tiger"); mh_sh_highlight_all('java');

I cannot do this in an interface since only abstract methods exist there. I tried to create an another class file to extend it but my program is already extending other class i.e. javax.swing.JFrame..How can i implement this ? just by creating the object of that class in main method ?

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JSP :: How Is Classpath Set For JSTL

Sep 9, 2014

I am looking at JSP page, which has code line as follows

<%@ page language="java" contentType="text/html; charset=UTF-8"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-bean" prefix="bean" %>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-html" prefix="html" %>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-logic" prefix="logic" %>

This taglib will have to be installed on local environment. How is it referred in jsp ? I dont see any code in jsp, which refers to the location of JSTL. So how does jsp invoke these tags ? Is it through classpath ?If its so , how is classpath set for JSTL ? Is it just as classpath is set for java ?

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EJB / EE :: Java Classpath Error

Jun 11, 2014

I'm trying to run an enterprise java application running glasssfish server from my university ( the open university, distance learning and i recommend it). I get the following error:

pre-init:
init-private:
init-userdir:
init-user:
init-project:
do-init:
post-init:
init-check:
init:

[code]...

The Java EE server classpath is not correctly set up - server home directory is missing.Either open the project in the IDE and assign the server or setup the server classpath manually.For example like this: ant -Dj2ee.server.home=<app_server_installation_directory> BUILD FAILED (total time: 0 seconds)

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Classpath With Ant Deployment Not Working

Sep 6, 2013

I am having an issue that I cannot seem to resolve with Ant deployments and my Classpath.
 
I have a module that is needed to run with Open Wonderland but for some reason when I run this particular module deployment it doesn't recognize part of the classpath.
 
On my server I have a class called JadeRunner.class and it is included in my classpath.  I can verify but running the following code:

public class testClassPath{
     public static void main(String args[]){
          String classArg = args[0];
          try{
             Class testClass = Class.forName(classArg);
          }catch(ClassNotFoundException e){
             e.printStackTrace();
          }
     }
}

I just enter the name of the class as an argument and if I get no errors that it can find the class.  This works if I enter it directly from the command line.  However with my ant deployment I get a ClassNotFoundException for this class.
I run my ant deployment as root but I use the -E switch so it picks up my environment variables.  The ant deployment finds all my other environment variables except this one. 

I have some sample outputs:

$ java testClassPath org.jdesktop.wonderland.modules.mas.jade.weblib.JadeRunner  (this give no output, so it finds the class)
$ sudo -E java testClassPath org.jdesktop.wonderland.modules.mas.jade.weblib.JadeRunner  (again no output, so it finds the class)
$ sudo -E ant deploy

This gives ClassNotFoundException: org.jdesktop.wonderland.modules.mas.jade.weblib.JadeRunner

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JSP :: Include From A Different Folder

Apr 17, 2015

I am creating a very simple webpage where I am using just a little bit of JSP to include partials (header, footer and asides) that are centrally located. One of the constraint that the site owner has put is that, for SEO reason, he wants to keep the url's the way they are. Most of the pages are located in the same folder, except for one which is in a subfolder.

Here is my problem, I have the partials in a folder and at the same level the images. Now, for that page located in the subfolder, when I include the partials, it is not able to locate the images because they are located in a folder one level up. What I could do is create a copy of the image folder in the subfolder or an adapted copy of the partials (referring to the images one level up), but either solution would make for a maintenance nightmare and repeat information on the server.

Here is a visual representation of my file system:

- Top level folder
- Partial_Folder
- header.html
- footer.html
- images
- picture_1.jpg
- Page_1.html
- Page_2.html
- Another_Folder
- Page_3.html

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EJB / EE :: Classpath Requirements For Facelets And CDI On Glassfish

Oct 29, 2014

I don't understand the classpath requirements for facelets and CDI on glassfish. I'm using Netbeans, and have the following:

thufir@dur:~/NetBeansProjects/EntAppWeb$ jar -tf dist/EntAppWeb.ear
META-INF/
META-INF/MANIFEST.MF
lib/
EntAppWeb-ejb.jar
EntAppWeb-war.war
lib/javaee-api-7.0.jar
thufir@dur:~/NetBeansProjects/EntAppWeb$

when I look at javaee-api it has javax.enterprise.context.ApplicationScoped and javax.inject.Named which are the particular imports being used in the bean. The facelets part is working, the template navigates correctly. It deploys to Glassfish and runs, except...there's no output from the @Named bean:

package dur.beans;
import javax.enterprise.context.ApplicationScoped;
import javax.inject.Named;
@Named("nextClient")
@ApplicationScoped
public class NextClient implements NextClientLocal {

[code]...

Now it's working. I can't figure what I did for the life of me...that's the desired output, each time the page is accessed the counter increments.Now it works. Is this on the right track? Way off base? I have an entity class from a database which I'd like to link up to this, and output the class.I can inject the entity into NextClient? I'm trying to do the "R" for Read in a CRUD application with CDI and facelets (using templates).

I've found much reference material on EJB, but it seems a mishmash. I just want to use CDI. What am I doing right/wrong, or, besides the PDF from Oracle on Java EE 7, what are good CDI reference material's?

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How To Add JAR And Config Files To CLASSPATH At Runtime

Jan 23, 2015

During runtime, I need to load the JAR files and relevant config files( .cfg files and .properties file) into CLASSPATH and run a specific java program from one of the JAR which is available in CLASSPATH.

Any relevant Java API details or a sample java program to implement the above use case.

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Manually Include Java API?

May 7, 2014

For some reason, when I generate a Javadoc (using javadoc.exe of JDK 8), it displays Java-defined classes like java.lang.String and java.lang.Object by their full names rather than simply String or Object. Only the classes inside the packaged contents were represented by their simple names and linked to them (had visible coloured bolding). Was I supposed to manually include the Java API?

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Trying To Add Database Driver (JDBC) - Not In CLASSPATH Warning?

Jun 23, 2015

This the output of java from my PC under linux platform (rhel 6.5).
 
[pentaho@vertica-srv1 Downloads]$ java -version
java version "1.7.0_79"
Java(TM) SE Runtime Environment (build 1.7.0_79-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mixed mode)
 
[Code] ....
 
But the problem is while trying to open ETL program under linux platform [pentaho@vertica-srv1 data-integration]$ ./spoon.sh .... I received the following error messages.
 
[pentaho@vertica-srv1 data-integration]$ ./spoon.sh
 
Trying to add database driver (JDBC): RmiJdbc.RJDriver - Warning, not in CLASSPATH?
Trying to add database driver (JDBC): jdbc.idbDriver - Warning, not in CLASSPATH?
Trying to add database driver (JDBC): org.gjt.mm.mysql.Driver - Warning, not in CLASSPATH?
Trying to add database driver (JDBC): com.mckoi.JDBCDriver - Warning, not in CLASSPATH?
[KnowledgeFlow] Loading properties and plugins...

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JavaFX 2.0 :: SceneBuilder - Preview Classpath-relative Images

May 7, 2014

When I assign a classpath-relative URL to an ImageView's 'Image' property, SceneBuilder is unable to display the Image in the Preview. It shows the text "Image not found" instead as a placeholder, which makes sense. What I'd like to do is add a classpath entry to SceneBuilder such that it is able to locate and display the Images. Any way to accomplish this (or similar)?

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How To Include Multiple UUIDs In Single Variable

Dec 31, 2014

My application depends on eight default user roles (or account types). They can be renamed or disabled, but should not be deleted. I want to protect them from deletion using their uuid value from the db. How can I pass their uuids into a single variable so I can use that single variable in my conditional statement? If I should use an array, any example of how I might do this?

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Rectangle Class Include Try-catch And Exception Handling

Oct 18, 2014

The requirement is to write a rectangle class and a test class, which include try-catch blocks and exception handling. Exceptions, involving try, catch, throw, throws, and finally commands,how to write a code about basic things, but in the test class, it gives me specific width and height so that i dont konw how to write a try-catch blocks an exception handling in this test class.There is my two classes, they are separated.

public class Rectangle {
double width ;
double height ;
Rectangle(){
width = 1;
height = 1;

[code]....

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Calculator Program - Use Strings And Methods To Include Arrays

Jul 23, 2014

My assignment is to essentially update a calculator program that uses strings, and methods, to include arrays. How to create and call an array that the user defines the size of and then inputs the numbers to fill the array. Here's the example my prof gave us of what the output should look like:

Menu
1. Add
2. Subtract
3. Multiply
4. Divide
5. Dot product
6. Generate random array
7. Quit

What would you like to do? 1

How many values are in the arrays? 3

Enter the values in the first array, separated by spaces:
2 4 6

Enter the values in the second array, separated by spaces:
1 3 5

The result is [3.0, 7.0, 11.0]

How to create an array that would allow the user to define the size of the array and then inputs the values for the array? I'm completely lost. I never should have taken java as an online class.

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Applets :: Embedding Images - How To Include Actual JPGs

May 7, 2014

I have an applet that uses JPanels to draw images in. I want to include actual jpgs now instead. The applet points to a .jar file. I want to use any number of images here, do I have to include them all in the jar file or is there another way to "point" to them (like html)?

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Include Three Sides Of Triangle Formatted To Two Decimal Places

Sep 9, 2014

My program is supposed to include The three sides of the triangle formatted to two decimal places The perimeter formatted to one decimal place The area formatted to one decimal place The unformatted area. It does run, but it is not decimal formatted. I have read my book to try and figure out how to do this, but it doesn't make since to me.

import javax.swing.JOptionPane;
import java.util.*;
import java.text.DecimalFormat;
import java.util.StringTokenizer;
 
public class ShelbyHarms_3_03 {
public static void main (String [] args) {
double a, b, c; //Input sides of triangle

[Code] ....

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Random Phone Number Generator - Include Dashes In The Output

Apr 11, 2011

I've been working on a personal project again in Unit 3 of my text book and this time they want me to make a random phone number generator. Here's the actual directions:

"Write an application that creates and prints a random phone number of the form XXX-XXX-XXXX.

Include the dashes in the output.

Do not let the first three digits contain an 8 or 9 (but don't be more restrictive than that), and make sure that the second set of three digits is not greater than 742.

Think through the easiest way to construct the phone number. Each digit does not have to be determined separately."

With this assignment I came across 2 problems:

1. What I tried was that since the first 3 numbers have to be a random number with no 8's or 9's I tried doing this algorithm:

int first0, first1, first2, second, third, random0;
first0 = generator.nextInt (999);
random0 = generator.nextInt (8);
first1 = first0.replace('8', random0);
first2 = first1.replace('9' random0);

The problem is that Java won't allow me to generate random numbers this way. Are there any easier ways of generating numbers that doesn't contain specific number (such as 8 or 9 in this case?)

2. I was thinking about this throughout the whole project and what if I generate a number such as 27 (less than 3 or 4 digit number) rather than 3 or 4 digit numbers? How would it show 0027 or 027 instead of 27 for the phone numbers?

import java.util.Random;
public class pp0303 {
public static void main (String[] args){
Random generator = new Random();
int first0, first1, first2, second, third, random0;

[Code] ....

RESULTS:

Exception in thread "main" java.lang.Error: Unresolved compilation problems:
Cannot invoke replace(char, int) on the primitive type int
Cannot invoke replace(char) on the primitive type int
Syntax error on token "random0", delete this token
at pp0303.main(pp0303.java:15)

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Modify Class Time2 To Include Tick Method That Increments Time Stored In Object By One Second

Jul 9, 2014

Modify class Time2 to include a tick method that increments the time stored in a Time2 object by one second. Provide method incrementMinute to increment the minute and method incrementHour to increment the hour. The Time2 object should always remain

a) incrementing into the next minute,

b) incrementing into the next hour and

c) incrementing into the next day (i.e., 11:59:59 PM to 12:00:00 AM).

how to manage case 4 stuff and what's the problem of this CODE.

import java.util.Scanner;
public class Time2Test
{
public static void main( String args[] )
{
Scanner input = new Scanner( System.in );
Time2 time = new Time2();
// input
System.out.println( "Enter the time" );
System.out.print( "Hours: " );
time.setHour( input.nextInt() );

[code]....

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When Deleting Data From File / Temp File Won't Rename Back To Original File

Apr 23, 2015

I am trying to remove a line based on user input. myFile.txt looks like:

Matt
Brian
John

However when I enter "Brian" (to remove this line), It is deleted on the temp file (myTempFile.txt), but not renamed back to the original file (myFile).

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
 
[code]....

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I/O / Streams :: Generate File Tree Structure Of Mounted Unix File System

Apr 22, 2014

I am creating a web application that runs on server X(unix) and it has another unix system mounted on it. I want to generate the file tree structure of this mounted unix file system and show it on to a web application so that users can select a file and move it onto this current unix machine.

I know this sounds stupid and you may want to say why cant we directly copy the file, I am doing a proof of concept and using this as a basis.

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Read Text File Into Object Array And Creating Random Access File

Dec 8, 2014

I am working on a project that requires me to build a database with random access file, representing products, the base product contains a name (about 30 characters), a price (double), and a quantity (integer). I have worked on this project for probably 15+ hours and have tried so many things and feel like I've barley made any progress...

The part i am really struggling with is taking the data from the text file and creating an object array with it using the product class. Once ive accomplished that, i have to use that data to create a random access file with the data.

Here is the base Product class that must be used to create the objects for the array.

public class Product
{
public String pName;
public String stringName;
public double price;
public int quanity;

[Code] .....

And then here is the data from the text file that i must extract to use to create product objects.

Dill Seed,938,34
Mustard Seed,100,64
Coriander Powder,924,18
Turmeric,836,80
Cinnamon (Ground Korintje),951,10
Cinnamon (Ground) Xtra Hi Oil (2x),614,31
Cinnamon (Ground) High Oil (1X),682,19

These continue for about 40-50 entries, they are not separated by a blank line though i had to add those so it would display correctly, each entry is on its own line with name separated with spaces, then price after a comma, then quantity after the second comma.....

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Reading Text File Into Object Array And Create Random Access File

Dec 9, 2014

I am working on a project that requires me to build a database with random access file, representing products, the base product contains a name (about 30 characters), a price (double), and a quantity (integer). I have worked on this project for probably 15+ hours and have tried so many things and feel like I've barley made any progress...

The part i am really struggling with is taking the data from the text file and creating an object array with it using the product class. Once ive accomplished that, i have to use that data to create a random access file with the data. Here is the base Product class that must be used to create the objects for the array.

public class Product
{
public String pName;
public String stringName;
public double price;
public int quanity;

[Code]...

these continue for about 40-50 entries, they are not seperated by a blank line though i had to add those so it would display correctly, each entry is on its own line with name seperated with spaces, then price after a comma, then quanity after the second comma.....

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