Someone

import java.net.*;import java.io.*;import java.awt.*;import java.awt.event.*;import javax.swing.*;/** * Summary description for gui * */public class gui extends JFrame{	// Variables declaration	private JTextPane jTextPane1;	private JScrollPane jScrollPane1;	private JButton Scan;	private JButton IPset;	private JPanel contentPane;	// End of variables declaration	public gui()	{		super();		initializeComponent();		//		// TODO: Add any constructor code after initializeComponent call		//		this.setVisible(true);	}	/**	 * This method is called from within the constructor to initialize the form.	 * WARNING: Do NOT modify this code. The content of this method is always regenerated	 * by the Windows Form Designer. Otherwise, retrieving design might not work properly.	 * Tip: If you must revise this method, please backup this GUI file for JFrameBuilder	 * to retrieve your design properly in future, before revising this method.	 */	private void initializeComponent()	{		jTextPane1 = new JTextPane();		jScrollPane1 = new JScrollPane();		Scan = new JButton();		IPset = new JButton();		contentPane = (JPanel)this.getContentPane();		//		// jTextPane1		//		//		// jScrollPane1		//		jScrollPane1.setViewportView(jTextPane1);		//		// Scan		//		Scan.setText("Scan...");		Scan.addActionListener(new ActionListener() {			public void actionPerformed(ActionEvent e)			{				Scan_actionPerformed(e);			}		});		//		// IPset		//		IPset.setText("Set IP");		IPset.addActionListener(new ActionListener() {			public void actionPerformed(ActionEvent e)			{				IPset_actionPerformed(e);			}		});		//		// contentPane		//		contentPane.setLayout(null);		addComponent(contentPane, jScrollPane1, 17,54,600,384);		addComponent(contentPane, Scan, 17,16,83,28);		addComponent(contentPane, IPset, 111,16,83,28);		//		// gui		//		this.setTitle("Network Monitor");		this.setLocation(new Point(106, 27));		this.setSize(new Dimension(640, 480));		this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);	}	/** Add Component Without a Layout Manager (Absolute Positioning) */	private void addComponent(Container container,Component c,int x,int y,int width,int height)	{		c.setBounds(x,y,width,height);		container.add(c);	}	//	// TODO: Add any appropriate code in the following Event Handling Methods	//	private void Scan_actionPerformed(ActionEvent e)	{		System.out.println("\nScan button clicked.");		// TODO: Add any handling code here	}	public void IPset_actionPerformed(ActionEvent e)	{		System.out.println("\nIP address button clicked.");		// TODO: Add any handling code here		String IP = JOptionPane.showInputDialog("Enter IP address (e.g. 148.197.27.):");		System.out.println("IP address set to "+IP+"x");		JOptionPane.showMessageDialog( null, "IP address set to "+IP+"x");	}	//	// TODO: Add any method code to meet your needs in the following area	//static int ip2=0;public static void scan(String args[]) throws IOException {	String array[][] = new String[254][2]; 	// array to store scan results for each IP	int counter=0;				// declare counter for array writing	while(ip2<254)				// while loop to iterate IP connection	{	   try		{			TimedSocket ts = new TimedSocket(); 	// create instance of TimedSocket class			Socket s1;				// socket creation			InputStream s1In;			DataInputStream dis;			String info;				// variables for successful connection info store			String info2;			String ip=ipgen();			// run IP generation method			System.out.print("Trying: "+ip);			s1 = new Socket();			// socket creation			s1 = ts.getSocket(ip, 5432, 600);	// pass connection host, socket and delay timeout to external class			s1In = s1.getInputStream();			dis = new DataInputStream(s1In);			info = s1.getInetAddress().getHostName(); 	//gives host address for printing			info2 = s1.getInetAddress().getHostAddress();   //gives IP for printing			array[counter][0] = s1.getInetAddress().getHostName();		// gives host for array			array[counter][1] = s1.getInetAddress().getHostAddress();	// gives IP for array			String st = new String(dis.readUTF( ));			System.out.println();			System.out.println(info); // added IP print			System.out.println(info2);			//System.out.println("The 1st entries on the array are: "+array[counter][0]+" and "+array[counter][1]);			counter++;						// increments counter for array storage			dis.close(); s1In.close(); s1.close();		}		catch(ConnectException e)					// Connection exception clause		{			System.out.print(" error! "+e.getMessage());		}		catch(Exception e)		{			System.out.print(" Exception caught "+e.getMessage());	// exception clause		}		finally		{			System.out.println();		}	}}public static String ipgen(String str)		// method for IP generation between x.x.x.1 and x.x.x.254	{		String IP = "148.197.27."; //IPset_actionPerformed.IP		if (ip2 < 254)		{			ip2++;		}		return IP+ip2;	}public static void main(String[] args)	{		JFrame.setDefaultLookAndFeelDecorated(true);		JDialog.setDefaultLookAndFeelDecorated(true);		try		{			UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");		}		catch (Exception ex)		{			System.out.println("Failed loading L&F: ");			System.out.println(ex);		}                catch(IoException ex)                 {                        // do whatever                }		new gui();	}//= End of Testing =}