How do I remove a class from a jar file?

How to add or remove classes from a JAR file.

1. Backup the jar file you want to modify.
2. unzip the jar file into a directory. unzip xxx.jar -d
3. Go to the directory and add or remove classes.
4. In the directory where MANIFEST. MF exists, recreate the jar file.

How do you update a jar file?

The Jar tool provides a u option which you can use to update the contents of an existing JAR file by modifying its manifest or by adding files. In this command: The u option indicates that you want to update an existing JAR file. The f option indicates that the JAR file to update is specified on the command line.

Can we edit .class file Java?

java Class editor is a small program they may work for basic files. Open the class file with “Dirty Joe Java overall Editor” make the changes you need and be sure to click file/save./ Copy the file back into 7-zip and you have a working exe with the modification you just made. No need to decompile!

How can I edit a .class file?

You can follow these steps to modify your java class:

1. Decompile the . class file as you have done and save it as .
2. Create a project in Eclipse with that java file, the original JAR as library, and all its dependencies.
3. Change the . java and compile.
4. Get the modified . class file and put it again inside the original JAR.

How do I delete a Java class file?

In Java, we can delete a file by using the File. delete() method of File class. The delete() method deletes the file or directory denoted by the abstract pathname. If the pathname is a directory, that directory must be empty to delete.

Can you edit a jar file?

You cannot edit a . jar file, these are compiled from . java files. You will have to edit the source code in a .

How do I change a Java class file?

Follow the steps to convert the . class into readable Java source code. Here we are using JAD decompiler. Step 2: Extract the zip file and get jad.exe….java we get the following code:

1. // Decompiled by Jad v1.
2. // Decompiler options: packimports(3)
3. // Source File Name: DecompilerDemo.
4. import java.
5. import java.

How do I edit 7zip jar files?

Use 7zip, right click on jar and with 7z say open archive, then go to property file, double click and open file with notepad, edit it and save. Now when you will close 7z console, it will ask “update archive?” Say yes… That’s it.

Can I delete class files?

When you’re done teaching a class, you can archive it. When a class is archived, it’s archived for all students and teachers in the class. Teachers and co-teachers can archive a class, but only the primary teacher can delete a class. Students can’t archive or delete a class.

How do I delete a .class file in Git?

class . You can also do git add -A which will stage deletes as well. You may need to do git add -A :/ if on a newer version of git. From there do a commit as usual git commit -m “deleted file…” , then git push origin master will delete it on github as well (assuming you’re on the master branch).