Java

Re: actionPerformed in another class

1-Jul-13 20:46

Rather than dumping a lot of code, try explaining your problem in clear terms. If you need to call a method of a class then create an object of that class and call the method as normal. however, if that is not your question then please clarify.

Use the best guess

Shubhashish_Mandal3-Jul-13 19:48

Shubhashish_Mandal

3-Jul-13 19:48

You can only register an event handler to an event source. So your first class is an event handler. And there fore you can use this to any of the event source which trigger that event. Something like this.

Java

class Handler implements ActionPerformed{

   public void actionPerformed(ActionEvent e) {}
   }
}
class Source {
   p s v main(){
     JButton bt = new Jbutton("Ok");
      bt.addActionListener(new Handler());
   }
}

Regards
Shubhashish

why java in linux has outstanding performance even jvm slow it down?

crunchor28-Jun-13 17:55

Re: why java in linux has outstanding performance even jvm slow it down?

28-Jun-13 17:55

Jvm has be written to have good speed in linux?

Richard MacCutchan28-Jun-13 23:19

Re: why java in linux has outstanding performance even jvm slow it down?

28-Jun-13 23:19

Please stop posting these questions. you have been told plenty of times that they are not valid for the programming forums.

Use the best guess

crunchor28-Jun-13 23:22

Re: why java in linux has outstanding performance even jvm slow it down?

28-Jun-13 23:22

You are a funny person, why do I need to care what you said? This is a very good topic to discuss for anyone interest in Java, stop being funny alright?

NotPolitcallyCorrect29-Jun-13 0:51

NotPolitcallyCorrect

29-Jun-13 0:51

crunchor wrote:
Jvm has be written to have good speed in linux?

Of course it was, Do you really think that it would have been written to have poor performance? Sleepy | :zzz:

Message Closed

27-Jun-13 17:11

27-Jun-13 17:11

Message Closed

Richard MacCutchan27-Jun-13 21:23

27-Jun-13 21:23

Please stop posting these irrelevant questions here. If you have a problem with another website then complain to that site's adminstrators. Once again this post has nothing to do with programming or Java. You are getting seriously close to being removed from this site.

Use the best guess

crunchor27-Jun-13 21:40

27-Jun-13 21:40

coeproject is a .net focus forum, I ask for what is happening in somewhere about java is not a problem. No one really care about java in this forum anyway.

Richard MacCutchan27-Jun-13 22:33

27-Jun-13 22:33

Please read http://www.codeproject.com/Messages/3137511/Forum-Guidelines-PLEASE-READ.aspx[^] carefully, and stop abusing these forums.

Use the best guess

Pete O'Hanlon27-Jun-13 22:59

Pete O'Hanlon

27-Jun-13 22:59

Richard. He's trolling. I suggest that we apply the official response to trolls.

I was brought up to respect my elders. I don't respect many people nowadays.

CodeStash - Online Snippet Management | My blog | MoXAML PowerToys | Mole 2010 - debugging made easier

Richard MacCutchan27-Jun-13 23:40

27-Jun-13 23:40

I agree, let the voting commence.

Use the best guess

crunchor27-Jun-13 23:00

27-Jun-13 23:00

I think you forgot to read this:
Do not be abusive, offensive, inappropriate or harass anyone on the boards. Doing so will get you kicked off and banned. Play nice.

java media player with Java Media Frmework

jschell28-Jun-13 13:48

jschell

28-Jun-13 13:48

Presumably you are referring to the Oracle Java Forums although it actually applies to all of the Oracle forums.

The forums are of course a free service and Oracle is all about the money so one can lead with that.

But other than that someone, or several someones, made a decision to upgrade the forum software and that mess is the result.

crunchor wrote:
It supposes to be the biggest java community to discuss rigtht?

Since Oracle took over the traffic has been down SIGNIFICANTLY. Forums that used to receive hundreds of posts daily now receive less than 20. My own uninformed opinion might be that google searches use to push the Sun forums to the top. For whatever reason.

crunchor wrote:
They screw up then I don't know where to ask java questions.

There are other places but none with the diversity that the Sun forums had.

Md Shariful Islam Saful26-Jun-13 7:48

Md Shariful Islam Saful

26-Jun-13 7:48

Is there any other framework in java to play music ? I have currently used JMF .But it can play only .mp3 and .mpg format.I can not play all the format like professional media player.I just want to build a player can play most of the format.Is there any way in java with enough documentations.Plz help me someone.

dusty_dex26-Jun-13 9:27

dusty_dex

26-Jun-13 9:27

Take a look Here.

Smile | :)

Md Shariful Islam Saful26-Jun-13 10:00

Md Shariful Islam Saful

26-Jun-13 10:00

Thanks.Then what will be my technique with conversion.

Shubhashish_Mandal3-Jul-13 19:59

Shubhashish_Mandal

3-Jul-13 19:59

Currently JMF support the several format. Check this
http://www.oracle.com/technetwork/java/javase/formats-138492.html[^]

Regards
Shubhashish

Connection to SQL using JDBC in Java

MarlBermudoNights3-Jul-13 22:22

MarlBermudoNights

3-Jul-13 22:22

Try searching for codec java libraries. Usually they need JMF to be used.
Like this one:
JFFMPEG[^]

chdboy25-Jun-13 23:23

chdboy

25-Jun-13 23:23

Java

static Connection Connectionstring()
   {
       Connection con = null;
       try {
           Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
       } catch (ClassNotFoundException e1) {
           // TODO Auto-generated catch block
           e1.printStackTrace();
       }
       String conUrl = "jdbc:sqlserver://localhost;databaseName=paytest;user=PC;password=;integratedSecurity=true";

       try
       {
                con = DriverManager.getConnection(conUrl);
                JOptionPane.showMessageDialog(null,"Connection is open!","Connection",JOptionPane.WARNING_MESSAGE);

                }
       catch (SQLException e)
       {

           e.printStackTrace();
       }
       return con;

   }//connection string method ends

I have got this error

Java

Exception in thread "main" java.lang.NoSuchFieldError: address
	at java.net.InetAddress.init(Native Method)
	at java.net.InetAddress.<clinit>(Unknown Source)
	at java.net.InetSocketAddress.<init>(Unknown Source)
	at com.microsoft.sqlserver.jdbc.SocketFinder.getDefaultSocket(IOBuffer.java:2430)
	at com.microsoft.sqlserver.jdbc.SocketFinder.findSocket(IOBuffer.java:2094)
	at com.microsoft.sqlserver.jdbc.TDSChannel.open(IOBuffer.java:491)
	at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(SQLServerConnection.java:1309)
	at com.microsoft.sqlserver.jdbc.SQLServerConnection.login(SQLServerConnection.java:991)
	at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:827)
	at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:1012)
	at java.sql.DriverManager.getConnection(Unknown Source)
	at java.sql.DriverManager.getConnection(Unknown Source)
	at SpringSample.Connectionstring(SpringSample.java:290)
	at SpringSample.main(SpringSample.java:120)

How to connect ?

thanh_bkhn28-Jun-13 1:12

thanh_bkhn

28-Jun-13 1:12

You should check the port where sqlserver is installed and specify the port number. Ex
jdbc:sqlserver://localhost:1433;databaseName=paytest;user=PC;password=;integratedSecurity=true

chdboy28-Jun-13 4:06

chdboy

28-Jun-13 4:06

If I use this code in a different class(Just the connection code)it works fine with

Java

jdbc:sqlserver://localhost:1433;databaseName=paytest;user=PC;password=;integratedSecurity=true

this code

but when I'm using it with GUI it does not work ?I hope connection string is not related to GUI I'm using ?

Richard MacCutchan28-Jun-13 4:12

28-Jun-13 4:12

chdboy wrote:
I hope connection string is not related to GUI I'm using ?

How do you think it could be? It is much more likely that you have made a mistake in one application that is not in the other one. Try stepping through the code with your debugger to trace the exact sequence of events when you try to connect.

Use the best guess

chdboy28-Jun-13 5:06

chdboy

28-Jun-13 5:06

Java

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import javax.swing.JOptionPane;

public abstract class ConnectionDB 
{	
	
	/**
	 * @param args
	 */
	public static void main(String[] args)
	{	
		
		try {						 
			insertRecordIntoDbUserTable();
			selectfromdb();
		} 
		catch (SQLException e)
		{
 
			System.out.println(e.getMessage());
 
		}
}
	
		
	private static void insertRecordIntoDbUserTable() throws SQLException
	{
		Connection con = null;
		Statement statement = null;
		String insertTableSQL = "INSERT INTO LoginDetails" + "(Username, Password) " + "VALUES" + "('user1','user1')";
		try 
		{
			con = DBConnectionstring();
			statement = con.createStatement(); 
			System.out.println(insertTableSQL);			
			statement.executeUpdate(insertTableSQL);			
			
			JOptionPane.showMessageDialog(null,"Your Data has been Inserted","Data Inserted",JOptionPane.WARNING_MESSAGE);
		} 
		catch (SQLException e)
		{
 
			System.out.println(e.getMessage()); 
		} 
		finally 
		{
 
			if (statement != null)
			{
				statement.close();
				
				JOptionPane.showMessageDialog(null,"Statement is closed","Statement",JOptionPane.WARNING_MESSAGE);
			}
 
			if (con != null)
			{
				con.close();
				
				JOptionPane.showMessageDialog(null,"Connection is closed!","Connection",JOptionPane.WARNING_MESSAGE);
			}
 
		}
		
		
	}
	
	private static void selectfromdb() throws SQLException
	{		
	    Statement stmt = DBConnectionstring().createStatement();
		ResultSet rs = stmt.executeQuery("SELECT Username,Password FROM LoginDetails");
		while (rs.next())
		{
			  String lastName = rs.getString("Username");
			  String Pass = rs.getString("Password");
			  System.out.println(lastName + "" + Pass + "\n");
			 
			}		
	}
	
	 static Connection DBConnectionstring()
	{		
		Connection con = null;
		String conUrl = "jdbc:sqlserver://localhost:1433; databaseName=paytest; user=PC; password=; integratedSecurity=true;";
		
		try 
		{
				 con = DriverManager.getConnection(conUrl);
				
				 JOptionPane.showMessageDialog(null,"Connection is open!","Connection",JOptionPane.WARNING_MESSAGE);
				 
				 }
		catch (SQLException e)
		{
			
			e.printStackTrace();
		}		
		return con;
		
	}
	

	}

The only difference is that this is an Abstract class.

And this is the code I'm using now with copy for connection string to the above code .

Java

import java.sql.DriverManager;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

import java.awt.Container;
import javax.swing.JOptionPane;
import java.awt.Frame;
import java.awt.event.*;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import javax.swing.SpringLayout;



public class SpringSample extends Frame implements ActionListener

{
	
	 JLabel F_namelbl = new JLabel("Username: ");
	    JLabel L_namelbl = new JLabel("Password: ");
	    JTextField tf_Fname = new JTextField(15);
	    JPasswordField tf_Lname = new JPasswordField(15);
	    JLabel Lbl_HW = new JLabel("< Login Area >");
	    JButton Btn = new JButton("Login");
	    JButton btn_cancel = new JButton("Cancel");
	
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	
	SpringSample()
	{
		
	    
		 JFrame frame = new JFrame("Login Area!");
		    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		    Container contentPane = frame.getContentPane();
		    JPanel p = new JPanel(new SpringLayout());
		    SpringLayout layout = (new SpringLayout());
		    contentPane.setLayout(layout);		   
		    JPanel p1=new JPanel();    
		   
		     
		    //--------------------------------------------------------------------------------------------------------------------
		    
		    //---------------------------------------------------------------------------------------------------------------------
		    /*Adding Components to the ContentPane */
		    frame.add(p1);
		    contentPane.add(F_namelbl);
		    contentPane.add(L_namelbl);
		    contentPane.add(tf_Fname);
		    contentPane.add(tf_Lname);
		    contentPane.add(Lbl_HW);
		    contentPane.add(Btn);
		    contentPane.add(btn_cancel);
		    	    
		      //--------------------------------------------------------------------------------------------------------------------
		    /*Lay out Components according to the position and coordinates on the SpringLayout*/
		    
		    layout.putConstraint(SpringLayout.WEST, Lbl_HW, 140, SpringLayout.WEST, contentPane);
		    layout.putConstraint(SpringLayout.NORTH, Lbl_HW, 0, SpringLayout.NORTH, contentPane);    
		    layout.putConstraint(SpringLayout.WEST, Lbl_HW, 140, SpringLayout.WEST, contentPane);
		    layout.putConstraint(SpringLayout.NORTH, Lbl_HW, 0, SpringLayout.NORTH, contentPane);
		    layout.putConstraint(SpringLayout.WEST, F_namelbl, 30, SpringLayout.WEST, contentPane);
		    layout.putConstraint(SpringLayout.NORTH, F_namelbl, 25, SpringLayout.NORTH, contentPane);
		    layout.putConstraint(SpringLayout.WEST, L_namelbl, 30, SpringLayout.WEST, contentPane);
		    layout.putConstraint(SpringLayout.NORTH, L_namelbl, 50, SpringLayout.NORTH, contentPane);
		    layout.putConstraint(SpringLayout.NORTH, tf_Fname, 25, SpringLayout.NORTH, contentPane);
		    layout.putConstraint(SpringLayout.WEST, tf_Fname, 15, SpringLayout.EAST, F_namelbl);
		    layout.putConstraint(SpringLayout.NORTH, tf_Lname, 50, SpringLayout.NORTH, contentPane);
		    layout.putConstraint(SpringLayout.WEST, tf_Lname, 15, SpringLayout.EAST, F_namelbl);
		    layout.putConstraint(SpringLayout.NORTH, Btn, 80, SpringLayout.NORTH, contentPane);
		    layout.putConstraint(SpringLayout.WEST, Btn, 110, SpringLayout.WEST, contentPane);
		    layout.putConstraint(SpringLayout.NORTH, btn_cancel, 80, SpringLayout.NORTH, p1);
		    layout.putConstraint(SpringLayout.WEST, btn_cancel, 200, SpringLayout.WEST, p1);	    
		    
		    //---------------------------------------------------------------------------------------------------------------------
		    /*Adding Action Listener/Action*/
		    btn_cancel.addActionListener(this);
		    Btn.addActionListener(this);
		    
		    //------------------------------------------------------------------------------------------------------------------------
		    /*Setting up JFrame*/
		    
		    frame.pack();
		    frame.setSize(350, 200);
		    frame.setVisible(true);	
	}
  public static void main(String args[]) 
  {	 
	  
    new SpringSample();
    Connectionstring();
    
    
    try {						 
		insertRecordIntoDbUserTable();
		selectfromdb();
	} 
	catch (SQLException e)
	{

		System.out.println(e.getMessage());

	}  
	  
  }
  //connection string method
  static Connection Connectionstring()
 	{		
 		Connection con = null;
 		try {
			Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
		} catch (ClassNotFoundException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}
 		String conUrl = "jdbc:sqlserver://localhost:1433; databaseName=paytest; user=PC; password=; integratedSecurity=true;";
 		
 		try 
 		{
 				 con = DriverManager.getConnection(conUrl); 				 
 				 JOptionPane.showMessageDialog(null,"Connection is open!","Connection",JOptionPane.WARNING_MESSAGE);
 				 
 				 }
 		catch (SQLException e)
 		{
 			
 			e.printStackTrace();
 		}		
 		return con;
 		
 	}
  
  private static void insertRecordIntoDbUserTable() throws SQLException
	{
		Connection con = null;
		Statement statement = null;
		String insertTableSQL = "INSERT INTO LoginDetails" + "(Username, Password) " + "VALUES" + "('user1','user1')";
		try 
		{
			con = Connectionstring();
			statement = con.createStatement(); 
			System.out.println(insertTableSQL);			
			statement.executeUpdate(insertTableSQL);			
			
			JOptionPane.showMessageDialog(null,"Your Data has been Inserted","Data Inserted",JOptionPane.WARNING_MESSAGE);
		} 
		catch (SQLException e)
		{

			System.out.println(e.getMessage()); 
		} 
		finally 
		{

			if (statement != null)
			{
				statement.close();
				
				JOptionPane.showMessageDialog(null,"Statement is closed","Statement",JOptionPane.WARNING_MESSAGE);
			}

			if (con != null)
			{
				con.close();
				
				JOptionPane.showMessageDialog(null,"Connection is closed!","Connection",JOptionPane.WARNING_MESSAGE);
			}

		}
		
		
	}
 
  private static void selectfromdb() throws SQLException
	{		
	    Statement stmt = Connectionstring().createStatement();
		ResultSet rs = stmt.executeQuery("SELECT Username,Password FROM LoginDetails");
		while (rs.next())
		{
			  String lastName = rs.getString("Username");
			  String Pass = rs.getString("Password");
			  System.out.println(lastName + "" + Pass + "\n");
			 
			}		
	}
  
  
  

 public void actionPerformed(ActionEvent e) 
{
	 
	if(e.getSource() == btn_cancel)
	{
		JOptionPane.showMessageDialog(null,"You have clicked on Cancel","button cancel",JOptionPane.WARNING_MESSAGE);
	}
	else if(e.getSource() == Btn)
	{
		JOptionPane.showMessageDialog(null,"You have clicked login","button login",JOptionPane.WARNING_MESSAGE);		
		
	}
	
	

}
}

Richard MacCutchan28-Jun-13 5:14