/* PropsFrame application displays Java system properties in TA frame
                    M. Gallant  01/12/2001 */

import java.awt.*;
import java.awt.event.*;
import java.util.*;

public class PropsFrame extends Frame{

 PropsFrame() {
    addWindowListener(new WindowAdapter() { public void
         windowClosing(WindowEvent e) { System.exit(0); } } );
     setSize(500, 300);
  }

 public static void main(String args[]) {
  Frame clfr = new PropsFrame() ;
  clfr.setTitle("Java System Properties") ;
  TextArea ta = new TextArea(10,20) ;
  clfr.add(ta, "Center") ;
  clfr.show() ;

     Properties sysprops = System.getProperties() ;
     Enumeration enprop = sysprops.propertyNames() ;
     StringBuffer strbuff = new StringBuffer() ;
     ta.setText("") ;
        while ( enprop.hasMoreElements() ) {
          String key = (String) enprop.nextElement() ;
             strbuff.append(key+"\t"+sysprops.getProperty(key) +"\n") ;
          }
     ta.append(strbuff.toString()) ;
  }
 }