I have been trying to use the Apache Commons Math library in my code. I have been having trouble importing it. I'm new to downloading libraries/packages outside of the built-in java packages. It feels like I have tried everything, and I might just be missing an obvious detail. I am using a Windows 11 machine.

I have tried the following with the most recent release of the Apache Commons Math library (3.6.1) and the most recent version (4.0).

The error that I get every compile time is: package org.apache.commons does not exist.

I have installed IntelliJ IDE and tried

• adding it as a library in the project structure (under project settings)

• and adding it as a dependency in the build.gradle file (implementation 'org.apache.commons:commons-math4:4.0').

I have installed Eclipse IDE and tried

• importing the JAR files into the src folder.

• I have tried following the steps in this article (add User Library -> add external JAR(s) -> fill in Javadoc location -> configure build path).

I have tried adding the directories containing the JAR files to CLASSPATH using Control Panel (edit system variables).

I'm still somewhat confused as to why there are multiple JAR files in the directory that you get after unzipping the library and as to which one(s) I'm supposed to be using directly. But, I tried extracting the class files using the jar xf command in the terminal from what I thought were the important JAR files (commons-math4-legacy-4.0-beta1.jar and commons-math3-3.6.1.jar). I then tried

• adding the resulting org directory to CLASSPATH

• and tediously grouping all of the class files from all of the subdirectories into one single directory and adding that directory to CLASSPATH.

I have tried using these directories by compiling with javac -cp path/to/JAR/file/filename.jar *.java, which by my understanding does the same thing as adding them to CLASSPATH in Control Panel but I tried it anyway.

I even tried downloading the source version of the library and collecting all of the .java files into one single directory.

I also tried what the answerer suggested here, and it did not work.

Do you know what I am doing wrong? Let me know if I need to provide any more info. Thank you!

Hey y'all, I'm writing a transpiled language, which, you guessed it, transpiles to Java.

Now, I was planning on doing a import statement like this:

incorp standard {
print_line,
read_line,
STD_SUCCESS,
STD_FAILURE

}

which would transpile to something like this:

import libraries.standard;
import libraries.standard.STD_FAILURE; 
import libraries.standard.print_line; 
import libraries.standard.read_line; 

Problem is, I found out that you can't actually import a single method from a class in Java, so how would I go about fixing the problem? One solution I thought about would be that when importing a single function, it actually transpiles the single function to the Java code, while when importing the full library it imports the library as a object.