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Anonymous
You need a decompiler to convert class files to java source files.
JAD is a Java Decompiler that can do it for you.
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Java source files have the .java extension, compiled Java class files have the .class extension.
You need to make sure that .mp4 is the selected 'Output Source Format'. If it is not converting it, there is a possibility it already is an .mp4.
You write the source code, in a text editor, or better in a special IDE. The source code should have the extension ".java". You can have several classes in the same file. Then you compile the class to bytecode; this creates a file with extension ".class".
converting
A java file contains the code you write. One java file contains one class so for example when I want to make a class called Person, the source code is saved in Person.java
in .exe file it contains machine understandable code. but in .class file it contain only byte code which is not understadable by the microprocessor it will understud by the jvm only . we con't execute .class file without jvm . but we can execute .exe file without c-compiler .
It is most likely an "import Java. ...." statement. Which imports packages to be used in the source file. Or a class declaration "public class myClass { ".
The only reason to convert a .class file to a .java file would be to attempt to reverse engineer a piece of Java code. Disadvantages of this would include near-incomprehensible code being produced by the reverse engineering program.
You can do that with an audio converter.Go online and Google: free audio converters. Select one and download/install it. Follow the conversion instructions making sure the Output Source format for the file you're converting is .wma.
It seems that your best bet for converting a wma file into an mp3 file is to buy or download the available software from an internet source. This software will provide step by step instructions for completing the task.
Converting a video does not shorten the length. It simply converts the file to a different format (file name extension).
That means: the file where a class is stored.