Convert class to java

Question

I have some  class files that I need to convert to  java so I did  javap -c ClassName class  and all the time I have the same error ERROR Could not find ClassName class  Do you guys have any idea of what might be the cause  I did man javap and as far as I know  the syntax is correct  If there is another way to convert it to a  java file  I am more than willing to try

User · Answer

I m guessing that either the class name is wrong - be sure to use the fully-resolved class name  with all packages - or it s not in the CLASSPATH so javap can t find it

User · Answer

This is for Mac users   first of all you have to clarify where the class file is    so for example  in  Terminal   A Mac Application  you would type   cd   then wherever you file is e g   cd  Users CollarBlast Desktop JavaFiles    then you would hit enter  After that you would do the command  e g   cd  Users CollarBlast Desktop JavaFiles       then i would press enter      Then i would type the command   javap -c JavaTestClassFile class       then i would press enter again      and hopefully it should work

User · Answer

I used the http   www javadecompilers com but in some classes it gives you the message  quot could not load this classes    quot  INSTEAD download Android Studio  navigate to the folder containing the java class file and double click it   The code will show in the right pane and I guess you can copy it an save it as a java file from there

User · Answer

Invoking javap to read the bytecode  The javap command takes class-names without the  class extension  Try  javap -c ClassName   Converting  class files back to  java files  javap will however not give you the implementations of the methods in java-syntax  It will at most give it to you in JVM bytecode format   To actually decompile  i e   do the reverse of javac  you will have to use proper decompiler  See for instance the following related question    How do I  quot decompile quot  Java class files

[java] Convert .class to .java

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