java terminal for windows

MainApp.java

package testswt;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class MainApp {

	/**
	 * @param args
	 * @throws IOException 
	 */
	public static void main(String[] args) throws IOException {
		Display display = new Display ();
		Shell shell = new Shell(display);
		final StyledText st = new StyledText(shell, SWT.BORDER|SWT.H_SCROLL|SWT.V_SCROLL);
		shell.setLayout(new GridLayout(1, true));
		st.setLayoutData(new GridData(GridData.FILL_BOTH));
		shell.open ();
		
		ProcessBuilder pb = new ProcessBuilder();
		//pb.redirectInput(Redirect.INHERIT);
		final Process process = pb.command("cmd.exe").start();

		Thread pOut = new Thread(new Runnable() {
			byte[] buf = new byte[4096];
			int len;

			@Override
			public void run() {
				InputStream processOut = process.getInputStream();
				
				try {
					
					while ((len = processOut.read(buf)) != -1) {
						Display.getDefault().syncExec(new Runnable() {

							@Override
							public void run() {
								st.append(new String(buf, 0, len));
								st.setCaretOffset(st.getCharCount());
								st.showSelection();
							}
							
						});
					}
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
				System.out.println("read DONEE");
			}
			
		});
		pOut.start();
		
		Thread pErr = new Thread(new Runnable() {
			byte[] buf = new byte[4096];
			int len;

			@Override
			public void run() {
				InputStream processOut = process.getErrorStream();
				
				try {
					
					while ((len = processOut.read(buf)) != -1) {
						Display.getDefault().syncExec(new Runnable() {

							@Override
							public void run() {
								st.append(new String(buf, 0, len));
								st.setCaretOffset(st.getCharCount());
								st.showSelection();
							}
							
						});
					}
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
				System.out.println("read DONEE");
			}
			
		});
		pErr.start();
		
		
		final OutputStream os = process.getOutputStream();
		st.addKeyListener(new KeyListener() {
			
			@Override
			public void keyReleased(KeyEvent e) {
				// TODO Auto-generated method stub
				
			}
			
			@Override
			public void keyPressed(KeyEvent e) {
				if (e.character < 9) {
					return;
				}
				System.out.println(e.character);
				System.out.flush();
				
				try {
					os.write(e.character);
					if (e.character == '\r') {
						os.write('\n');
					} else {
					}
					os.flush();
				} catch (IOException e1) {
					// TODO Auto-generated catch block
					e1.printStackTrace();
				}
			}
		});
		
		while (!shell.isDisposed ()) {
			if (!display.readAndDispatch ()) display.sleep ();
		}
		display.dispose ();

	}

}