package « class file « Java I/O Q&A

1. Dynamically loading a class file with a non default package and no nested folders    stackoverflow.com

I am writing a curriculum project for students new to Java. It has a folder structure as so.

myjar.jar
solutions/my/really/long/package/MySolution.class

2. Is there a Java package to read the UNIX /etc/group file?    stackoverflow.com

I have been scouring the Internet looking for a Java package/class that will allow me to parse the UNIX /etc/group file. While it really wouldn't be so hard to write ...

3. java logger to one file over several classes and packages    stackoverflow.com

I'm trying to figure out how to use the java.util.logging features. All of the tutorials show how to log to a log file from the main class, but I cannot ...

4. Get a file inside a specific package    stackoverflow.com

I've a java package (package A) and I would retrieve a file contained into another package (package B). For example, suppose that into package A I have a class named ClassA. The ...

5. How to compile a class file in Java?    stackoverflow.com

I have the following code generated by Eclipse (.java file).

import org.eclipse.swt.widgets.Shell;

import org.eclipse.swt.widgets.Display;

public class HelloWorldSWT {

    /**
     * @param args
     */
 ...

6. package in .java file makes class file unuseable    stackoverflow.com

It's been too long since I've last done Java, and I can't remember why the following happens: Given this file, created by a standard Maven project, as can be seen here:

7. Tool to check package name and class name of the class within a .class file    stackoverflow.com

Is there some tool or technique to let me query the contents of a Java .class file? I want to know the fully qualified name of the class and what method ...

8. the number of class files in a java package constant    stackoverflow.com

I am new to java.My friend asked me this question today And i am looking for an answer to it. How to make the number of class files in a package, constant? ...

9. Must all java class file belong to a java package?    stackoverflow.com

It seems there a 'default package' in eclipse. What's it?

10. How do I compile a .java file without having package data?    stackoverflow.com

I'm trying to compile a .java file into a .class file so I can use it as a 3rd party class that I load during runtime from a different package/program. I've ...

11. How to audit user supplied class files to blacklist packages, classes, and methods    stackoverflow.com

I am working on an application that hosts user defined stored procedures that are provided as Java class files. The procedures need to be deterministic, and I want to black list ...

12. How to access files in other packages without using a dummy class    stackoverflow.com

I am actually loading OWL files in my java web app with the following code:

InputStream is = Dummy.class.getResourceAsStream("content.owl");

13. How to find the package of a class file in java    stackoverflow.com

I'm writing a java program that works with .class files. I want to be able to read a .class file on the filesystem (with InputStream) and determine the package that it ...

14. How to repackage .class files from the default package using jarjar?    stackoverflow.com

Is it possible to move the .class files in a jar from the default package to another named package so that I can import and use them? After browsing other questions here, I ...

15. Creating a File object from a java class, when both are deployed in the same package!    coderanch.com

Hi, I have a requirement to embed an image in an excel file dynamically from a Java class. The Java class is a part of the web module of an EAR file which is getting deployed in WAS 5.0. To embed the image in the excel file at the runtime, I need to create a file object for the same. I ...

16. How to find the size of .class file using java program with out using .IO package?    coderanch.com

I can not really get the motive behind asking such questions in an interview. I will assume that the interviewer just wants to say that "Hey you know what i have written ClassLoaders and there is this method defineClass() that takes byte[] array that has the entire class definition." Boy, put a blog entry telling the world that you know that! ...

17. package file and class    coderanch.com

18. Creating Class files without using the Default Package    coderanch.com

I have been using Eclipse to learn Java. I'm near completion of an 87 lesson beginners tutorial and I have yet to figure out how to create a New Class and not get the following message at the top of the New Class Wizard. "The use of the default package is discouraged." Up to now I have been ignoring it and ...

19. moved class files into new package, application stopped working...    coderanch.com

Hi guys, I'm using eclipse, I've created a new project call part2 and a new package (a). copy classfiles from part1 into part2's package a and add "package a;" to the first line of all class files but the things still doesn't work properly, some class file cannot access other class files. what should I check for?

20. getting imported package from a .class file    forums.oracle.com

Import statements aren't preserved, however there is a "constants pool" at the start of the .class file which contains details of all other classes referenced, and those will be fully qualified names including package. I don't know of any way to access this data via reflection though. But there's nothing to stop you reading a .class file directly and the format ...

21. not getting the java class file from package    forums.oracle.com

Hi experts, i put servlets and java class fiels in the same packages, before yestarday it was working fine but from yestarday night it is not getting the java class files. the class files are in the same package but servlet is unable to locate it.... and same case with the jsp files they are also unable to locate class files... ...

22. Package, public class and files...    forums.oracle.com

Because when you have a non-trivial project you need some way of locating the source code for a class. Just putting all 475 classes into a single file isn't going to be a good strategy. It's not scalable, if you want a buzzword. Also it allows the compiler to identify pieces of source code which have been changed since they were ...

23. Getting package structure from .java/.class file?    forums.oracle.com

Anyone know a nice way to get the package structure from another .class or .java file? I got a .java file that I compile to a .class file, the thing is I need the package structure so I save the comiled file in the right map structure. Hope you get what I mean!

24. Mac- .class files are not being placed in packages.    forums.oracle.com

hi. i am using xcode to make .java files which get stored in a folder called chapter5. now, i compile the .java file using the javac command in the terminal. the first line of the .java file is... package one; when i compile there is no error. now when i check the chapter5 folder, the .class file is in the same ...

25. How to access a class file outside the package?    forums.oracle.com

package foo; public class TestCounter { public static void main(String args[]) { Counter c = new Counter(); c.print(); } } Both these files are stored under "D:\Test". I first compiled Counter.java and got Counter.class which resides in folder "D:\Test" when i compile TestCounter.java i got the following error message: D:\Test>javac -classpath "d:\Test" -d "d:\Test" TestCounter.java TestCounter.java:6: cannot find symbol symbol : ...

26. Importing a .class file into my package?    forums.oracle.com

Basically, for our last project we created a class that held the information about a year: how many days were in a month, how many months were in a year, etc. etc. For this project, we'll be having to use that same class to make a GUI calendar. Our teacher provided a class which he compiled for us to use in ...