Deploying jre and classes without install

Question

i know this is a popular subject - HA!
my red eyes have googled and forumed all they can.
i dont want to do anything complicated.
there is no attempt to create an .exe or write in native code.
my question is...
i just want to have a .bat file run a .jar file on a computer
that does not (and can not) have java installed on it.
can i have a .jar run on a JVM that i have - lets say -
on the cd that includes the .jar without Java installation being required.
and second, where are the standard imported java files
located (like awt, swing, lang.Math...)? is it lib/tools.jar?
so i suppose the answer extends to can the JVM run without
being installed and if i bundle the JVM and classes how do i link
them in my .jar?
(from what ive read maybe through class-path in the manifest?).
I appreciate any help!
ai no dice

Answer 1

import javax.swing.*;
import java.awt.*;
import java.io.*;
public class CaptureOutput
     public static void main(String[] args) throws Throwable
          Process process = Runtime.getRuntime().exec(JOptionPane.showInputDialog("Type in the command."));
          BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream())),
               err = new BufferedReader(new InputStreamReader(process.getErrorStream()));
          JFrame frame = new JFrame("Program Output");
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          frame.getContentPane().setLayout(new GridLayout(2,1));
          Font monospaced = new Font("Monospaced",Font.PLAIN,12);
          JTextArea inComp = new JTextArea(),
               errComp = new JTextArea();
          inComp.setFont(monospaced);
          errComp.setFont(monospaced);
          inComp.setEditable(false);
          errComp.setEditable(false);
          inComp.append("System.out***************************************************************************************\n");
          errComp.append("System.err**************************************************************************************\n");
          frame.getContentPane().add(inComp);
          frame.getContentPane().add(errComp);
          JScrollPane scrollPane = new JScrollPane(frame.getContentPane());
          frame.setContentPane(scrollPane);
          frame.pack();
          frame.setVisible(true);
          frame.setExtendedState(JFrame.MAXIMIZED_BOTH);
          boolean processDone = false;
          while(in.ready() || err.ready() || !processDone)
               if(in.ready())
                    inComp.append(Character.toString((char)in.read()));
               if(err.ready())
                    errComp.append(Character.toString((char)err.read()));
               try
                    process.exitValue();
                    processDone = true;
               catch(IllegalThreadStateException e)
          inComp.append("\n\nProcess exited with exit code "+process.exitValue());
}Copy/paste that and compile it. Then run it. It will capture the output of anything you run and the input it asks for works just like the command line. That will let you see where the JRE is getting the standard classes from.
Errrrrr..... I seriously doubt you'll be able to find someone here without Java. xD I would ask your less computer savy friends.
I would also suggest that you just try using the public JRE instead of using the JDK's JRE. The JDK is much larger, and I wouldn't chance any errors breaking it appart could cause.
As for running the jar, what you need to do is "java [many other options] -jar Program.jar" and have the property Main-Class set in the manifest. The "many other options" will have to be things like -bootclasspath to tell it where to look for the standard classes. This is one heck of a project you're taking on, and it will require some pretty serious understanding of how to use the VM.