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I am currently 3 months+ into programming and am trying to build an android app that takes data from Quandl.
How do I import the Quandl library into my Android project? I have tried to search for answers - they typically tell me to add the .jar file, but there is no .jar file in the Quandl library here (taken from the link below).
https://github.com/jimmoores/quandl4j
Will really appreciate it if someone posts a step by step guide for a noob beginner like me.
The answer is in the link you have provided:
https://github.com/jimmoores/quandl4j.
Look at Quick Start section. You have four options.
You can download zip. There is source code inside. You should unzip this archive and then use maven to build jar file. Go to main directory, where pom.xml file is and execute mvn install. If build is successful then jar file should be in target directory.
If you are familiar with git you can clone repository and as previous crate jar with maven (mvn install).
You can use maven to add dependency to your project automatically.
You can use gradle, another tool that automates process of building dependency.
Generally speaking: you are new to programming, spend some time learning about maven, because this tool will help you a lot in your career.
https://maven.apache.org/
After reading this answer please remove this question, because it has a little value for community.
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I try to import class-files from my PC to my Laptop. I use on both Eclipse and Windows 10 and tried to put the files in the other workspace. It didn`t work. Is there any easy, fast option to import the files.
By the way when I try to import the file manually I get the error "The Class File Viewer cannot handle the given input ('org.eclipse.ui.ide.FileStoreEditorInput')."
If you want to go on working with your eclipse project to another location you need to migrate all resources, not just the class files. To migrate a project, you can right-click on the project and hit "Export->Archive File". In the following wizard you can select projects and resources that you want to transport to another workspace.
In the new location you select "Import->Existing projects into workspace". In the following wizard, choose "Select archive file" and select your file, then you can choose the projects to import.
Of course, as stated in the comments, if you want to be able to work in both places and not migrate altogether, using a version control system such as git is highly preferable, because otherwise you would have to keep these projects in sync manually.
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While creating a Maven Project in Eclipse version 2020-06, I'm facing three problems:-
Not getting the Maven Project option under File->New, but it is present under Project Section. No Maven Project Option Present in File->New
Not getting any .java file under src/main/java.
No .java file under src/main/java
Not getting any custom Archetype.
No custom Archetype present
NOTE:- I am using JDK 1.8 and JRE 1.8 in Windows 7.
How to add all this for the Maven Project? Please suggest.
It just works like this. What is wrong with it?
Just add your .java file. Right click -> new -> class/interface/whatever
I think you have to wait. In the bottom-right corner we can see "Retrieving archetypes". It can take a few minutes to download everything
You can use 'Window > Perspective > Customize Perspective' to customize the current perspective. Choose 'Shortcuts' and then 'Maven > Maven Project' to add that to 'File > New'.
It is up to you to create new Java files.
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I have a Java / maven project in IntelliJ IDEA, but when I try to run a test I got the message Nothing Here
First, try updating all plugins to latest versions and restarting IDEA.
The issue may be related to this YouTrack ticket. Try disabling the Gradle plugin in Settings | Plugins and removing the following lines from CONFIG\disabled_plugins.txt file + restart IDEA:
org.jetbrains.idea.gradle.ext
org.jetbrains.plugins.gradle
org.jetbrains.plugins.gradle.maven
If it doesn't help, attach your idea.log file after reproducing the issue (Help | Show Log in Explorer).
On the latest IDE, this option is more simplified.
right-click on the folder you want to be recognized as a source folder:
Mark Directory As -> Sources Root
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I am getting this error when I'm running my application in IntelliJ using Tomcat Server:
java.lang.ClassNotFoundException: Could not load requested class : com.mysql.jdbc.Driver
I tried adding the MySQL library, but with no success. Any help would be appreciated.
To add a library to the artifact that gets deployed to the application server you need to do the following:
1. Download the desired library
In IntelliJ you will need to go to File > Project Structure > Libraries
Click the + (plus) button to add a New Project Library
If you select the Java option, you will be asked for the jar of that library (that you have already downloaded)
If you select the Maven option, you can search for the desired library, but I suggest using the Maven Repository to search for the library you need. If you find it, in the IntelliJ dialog box that just opened you can give the exact Maven coordinates in the form group:artifact:version (for the MySQL driver it might be mysql:mysql-connector-java:8.0.13)
2. Add the library to the artifact
Under File > Project Structure > Artifacts, select the Output Layout tab
In the WEB-INF folder create a lib folder if you do not have it already
Right click on the lib folder > Add Copy of > Library files, and choose the library that you added at step 1.
Click ok to close the Project Structure window
This should make your program work correctly.
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I am working on an existing android project. I want to create a jar file from a package of that project and add that as a library. (i.e. i have 5 packages in that project, i want to create a jar from one of those packages and add that package as library). As I am new to java and android, i could not understand what will be the best approach for achieving above goal. thanks
Create Jar File:
-
1. Select package from package explorer.
2. Go to File -> Export -> Create Java -> Jar File.
3. Perform wizard steps.
Add jar file to Project.
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Now put this created jar file in to libs folder of the Project and add it to build path.`
If you are working on Eclipse then right click
Package Name> Export >Java >JAR file
and then you can add this jar file in your libs and use it wherever you want