classpath « class file « Java I/O Q&A

1. How do I use the Java ClassLoader to load a file fromthe classpath?    stackoverflow.com

I want to use the ClassLoader to load a properties file for the Properties class. I've simplified the below code to remove error handling for the purposes of this discussion:

loader = ...

2. ClassNotFoundException for class file on classpath    stackoverflow.com

I have the following code:

 // Test TODO remove
 try {
  System.out.println(System.getProperties().getProperty("java.class.path"));
  this.getClass().getClassLoader().loadClass("mypackage.MyClass");
 } catch (ClassNotFoundException e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
 }

3. Is it possible to have the System ClassLoader load .class files specified at run time?    stackoverflow.com

I am writing a static analysis tool for an assignment, it analyses Java bytecode using the ASM library. One of the parts of ASM that we use requires (or at least, ...

4. Setting Java Classpath to Load a Class File    stackoverflow.com

I'm new to Java, and I'm unsure how to access a class file located in a specific directory from a separate program jar. For example, I have an third party jar file ...

5. ClassNotFoundException Thrown when Dynamically Loading Class Files    stackoverflow.com

We have a servlet project, which contains (among many other classes) an interface that we expose to users. Users can compile their own classes (in the form of .class files) that implement ...

6. Why can't I load this class file in Rhino console?    stackoverflow.com

I'm prototyping a web page scraper using Rhino and Env-js. Nevermind that the documentation for both projects is atrocious... I'm trying to load up the File.java example class that is supplied ...

7. How can i save a file to the class path    stackoverflow.com

how can I save / load a file that is located where my classes are. I dont the physical path to that location before and I want dynamically to find that ...

8. How can I find the file containing a specific class somewhere in my classpath?    stackoverflow.com

I'm trying to find a single file in classpath. This file is somewhere in one of JARs available in classpath. I'm sure that this task is rather typical. Is there any ...

9. Adding a non-jar file to the Java class path    stackoverflow.com

I'm trying to make a .txt file available to my application via the class path. In my startup script--which is co-located in the same folder as the .txt file--I've set ...

10. load class file from classpath    stackoverflow.com

I want to load class files from module dependencies (external jar files in the classpath). When I tried getResourceAsStream I got null pointer exception:

ClassParser parser = new ClassParser(this.getClass().getResourceAsStream("org/apache/tools/ant/taskdefs/optional/net/FTP.class"), "FTP.class");

Exception in thread ...

11. How to run a Java file?    stackoverflow.com

There is a java program in the folder Downloads/jason/src/demo/de/l3s/jason/testfile.java I can compile it with javac testfile.java (while in that directory) Resulting in testfile.class. But I cannot run this file by typing java testfile If ...

12. Applet code tags and class files    stackoverflow.com

I just started writing Applets and I had some questions about the HTML applet tags with packages, and class files. I'll start with packages. I've been using Netbeans to code my applets, ...

13. Can you use File class to reference a file that's not on the classpath?    forums.oracle.com

I'm afraid you've got it completely wrong. File objects don't depend on the classpath in any way. When you create a File object with a relative pathname, the path is relative to the current working directory (i.e., the "user.dir" system property). If you specify an absolute path, the file can be anywhere your app (or, more specifically, the user who's running ...