Thread: JAVA- .class to .java

hello everyone,

i'm new to computer science and i was challenged by one of my friends to find out the right code for a class file he gave me.

I have done some work on it but just need your help, this is not a homework assignment, its just for fun

if i'm thankful for anyone who helps me

this is my code

public class Tpi
{
    private static final class Mode extends Enum
    {
 
	private enum Mode
	{
		UNKNOWN, COMPILE, INTERPRET
	}
        private static final Mode $VALUES[];
 
        public static Mode[] values()
        {
            return (Mode[])$VALUES.clone();
        }
 
        public static Mode valueOf(String s)
        {
            return (Mode)Enum.valueOf(Tpi$Mode, s);
        }
 
        static 
        {
            UNKNOWN = new Mode("UNKNOWN", 0);
            COMPILE = new Mode("COMPILE", 1);
            INTERPRET = new Mode("INTERPRET", 2);
            $VALUES = (new Mode[] {
                UNKNOWN, COMPILE, INTERPRET
            });
        }
 
        private Mode(String s, int i)
        {
            super(s, i);
        }
    }
 
 
    private static final int version = 1;
    private boolean success;
    private String sourceFile;
    private String destinationFile;
    private Mode mode;
    private static final String expectedSourceFileSuffix = ".p";
    private static final String destinationFileSuffix = ".s";
 
    public static void main(String args[])
    {
        Tpi tpi = new Tpi(args);
    }
 
    private Tpi()
    {
    }
 
    public Tpi(String as[])
    {
        success = false;
        mode = Mode.UNKNOWN;
        if(!decodeCommandLine(as))
        {
            return;
        } else
        {
            Parser parser = new Parser(sourceFile);
            success = parser.isSuccessful();
            return;
        }
    }
 
    public boolean isSuccessful()
    {
        return success;
    }
 
    private boolean decodeCommandLine(String as[])
    {
        String s;
        int i = ".p".length();
        System.out.println("Tpi version 1");
        if(as.length != 2)
        {
            System.out.println("Invalid number of arguments.");
            explainArguments();
            return false;
        }
        sourceFile = as[1];
        if(sourceFile.length() < i + 1 || !".p".equals(sourceFile.substring(sourceFile.length() - i)))
        {
            System.out.println("sourcefile must end with .p");
            explainArguments();
            return false;
        }
        s = as[0];
        if(!s.equals("-C"))
        {
            break
        }
        destinationFile = sourceFile.substring(0, sourceFile.length() - i);
        new StringBuilder();
        this;
        destinationFile;
        ".s";
        toString();
        destinationFile;
        mode = Mode.COMPILE;
        System.out.println(new StringBuilder() + "Compiling " + sourceFile + " to " + destinationFile);
        break
        if(s.equals("-I"))
        {
            mode = Mode.INTERPRET;
            System.out.println((new StringBuilder()).append("Interpreting ").append(sourceFile).toString());
        } else
        {
            System.out.println("Invalid mode.");
            explainArguments();
            return false;
        }
        return true;
    }
 
    private void explainArguments()
    {
        System.out.println("Usage: java Tpi mode sourcefile.p");
        System.out.println("where mode is one of the following:");
        System.out.print("-C compiles sourcefile.p");
        System.out.println(", writing assembly code to sourcefile.s");
        System.out.println("-I interprets the contents of sourcefile.p");
    }
}

and i have attached the class file.


Thanx

Can Anyone HELP?!

Sorry I'm new too, and I got no clue what that means or dose. lol

Welcome to the Forums!!

Have a look at javap - The Java Class File Disassembler or something like JD | Java Decompiler

// Json

okay, thank you so much for your help, it is much better than before

thanx