JTable in JFrame

[ankur rathi]

Hi everybody ,

Plz solve my problem . I want to display table on a frame & I am able to display but not with proper size & position .
How can I do this ? Plz provide code if possible

Here is the code :


import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class SimpleTableDemo extends JFrame {

public void show() {

Object[][] data = {
{"Mary", "Campione",
"Snowboarding", new Integer(5), new Boolean(false)},
{"Alison", "Huml",
"Rowing", new Integer(3), new Boolean(true)},
{"Kathy", "Walrath",
"Chasing toddlers", new Integer(2), new Boolean(false)},
{"Mark", "Andrews",
"Speed reading", new Integer(20), new Boolean(true)},
{"Angela", "Lih",
"Teaching high school", new Integer(4), new Boolean(false)}
};

String[] columnNames = {"First Name",
"Last Name",
"Sport",
"# of Years",
"Vegetarian"};

JTable table = new JTable(data, columnNames);
JScrollPane scrollPane = new JScrollPane(table);
JPanel panel = new JPanel();
panel.add(scrollPane);
JFrame frame = new JFrame();
frame.getContentPane().add(panel, BorderLayout.CENTER);
frame.setSize(900,200);
frame.setVisible(true);

}


public static void main(String[] args) {
SimpleTableDemo frame = new SimpleTableDemo();
frame.show();
}
}

[Pat Hays]

Hello rathi

Change frame.getContentPane().add(panel, BorderLayout.CENTER);
to be
frame.getContentPane().add(scrollPane, BorderLayout.CENTER);

[ankur rathi]

No pet ,
It is not solving my problem .

My final aim is to display all the records of a particular student on a frame . Imagine the frame would be like this :
On the top-middle there will be student name in big font . then in middle a table includes all the marks of that student .after then in bottom some more details about student & a button that will have the functionality of getting printout of this frame .

Accrding to ur solution I am able to control position of table( not completely ) but not the size like the table should escape some space from the both side ( left & right ) .

Any body if have any solution then post ASAP .
Thanks ,

[ravi v kumar]

import javax.swing.*;
import java.awt.*;
//import java.awt.event.*;

public class TableFrame extends JFrame {

public void show() {

Object[][] data = {
{"Mary", "Campione",
"Snowboarding", new Integer(5), new Boolean(false)},
{"Alison", "Huml",
"Rowing", new Integer(3), new Boolean(true)},
{"Kathy", "Walrath",
"Chasing toddlers", new Integer(2), new Boolean(false)},
{"Mark", "Andrews",
"Speed reading", new Integer(20), new Boolean(true)},
{"Angela", "Lih",
"Teaching high school", new Integer(4), new Boolean(false)}
};

String[] columnNames = {"First Name",
"Last Name",
"Sport",
"# of Years",
"Vegetarian"};

JTable table = new JTable(data, columnNames);
JScrollPane scrollPane = new JScrollPane(table);
//JPanel panel = new JPanel();
//add(scrollPane);
JFrame frame = new JFrame();
frame.getContentPane().add(scrollPane, BorderLayout.CENTER);
frame.setSize(900,200);
frame.setVisible(true);

}


public static void main(String[] args) {
TableFrame frame = new TableFrame();
frame.show();
}
}


use this code which displays as u required

with regards ravi

[ankur rathi]

vavilipalli , pet already suggested the same solution .
But read my second reply !!
Anyway, Thanks

[ravi v kumar]

run this and extend this code as per as ur requirement
........may this might be helpful.............

bye


import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class Rajit extends JFrame {
JTable table = null;
JPanel panel = new JPanel();
JScrollPane scrollPane=null;
JTextField namevalue=null;
JLabel name=null;
public void show() {

Object[][] data = {
{"Mary", "Campione",
"Snowboarding", new Integer(5), new Boolean(false)},
{"Alison", "Huml",
"Rowing", new Integer(3), new Boolean(true)},
{"Kathy", "Walrath",
"Chasing toddlers", new Integer(2), new Boolean(false)},
{"Mark", "Andrews",
"Speed reading", new Integer(20), new Boolean(true)},
{"Angela", "Lih",
"Teaching high school", new Integer(4), new Boolean(false)}
};

String[] columnNames = {"First Name",
"Last Name",
"Sport",
"# of Years",
"Vegetarian"};

table = new JTable(data, columnNames);
scrollPane = new JScrollPane(table);

panel.setLayout(new FlowLayout());
scrollPane.setLayout(new ScrollPaneLayout());
panel.add(scrollPane);

name=new JLabel();
namevalue=new JTextField(14);
name.setVisible(false);
namevalue.setVisible(false);
panel.add(name);
panel.add(namevalue);
JFrame frame = new JFrame();
frame.getContentPane().add(panel, BorderLayout.CENTER);
frame.setSize(900,200);
frame.setVisible(true);
table.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
printDebugData();
//validate();
//repaint();
}
});

}

private void printDebugData()
{
// name=new JLabel("name");
//JTextField namevalue=new JTextField();
String NameValue_strtable=table.getValueAt(table.getSelectedRow(),0).toString();
name.setText("Name :");
namevalue.setText(NameValue_strtable);
System.out.print(NameValue_strtable);
//panel.add(name);
//panel.add(namevalue);
name.setVisible(true);
namevalue.setVisible(true);
repaint();
}
public static void main(String[] args) {
Rajit frame = new Rajit();

frame.show();
}
}

[ankur rathi]

I have just tried your code but it is displaying just a dash in middle ( no table , no anything ) .
Please give one more try ...
Any help is welcome ...

[ravi v kumar]

check once,

here its is working for me

[Nigel Browne]

I have rewritten vavilipalli's code using a constructor rather than the show method to initialize the JTable.

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
 
public class Rajit extends JFrame {
    JTable table = null;
    JPanel panel = new JPanel();
    JScrollPane scrollPane=null;
    JLabel namevalue=null;
    JLabel name=null;
    
    public Rajit() {
        Object[][] data = {
                            {"Mary", "Campione","Snowboarding",5, false},
                            {"Alison", "Huml","Rowing", 3, true},
                            {"Kathy", "Walrath","Chasing toddlers", 2, false},
                            {"Mark", "Andrews","Speed reading", 20, true},
                            {"Angela", "Lih","Teaching high school", 4, false}
                         };
 
       String[] columnNames = {"First Name","Last Name","Sport","# of Years","Vegetarian"};
       table = new JTable(data, columnNames);
       scrollPane = new JScrollPane(table);
 
       panel.setLayout(new FlowLayout());
       scrollPane.setLayout(new ScrollPaneLayout());
       panel.add(scrollPane);
 
       name=new JLabel("Name:");
       namevalue=new JLabel();
       namevalue.setFont(new Font("SansSerif", Font.BOLD, 12));
       panel.add(name);
       panel.add(namevalue);
       getContentPane().add(panel, BorderLayout.NORTH);
       getContentPane().add(scrollPane, BorderLayout.CENTER);
       
       setSize(900,200);
       setVisible(true);
       setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
       table.addMouseListener(new MouseAdapter() {
           public void mouseClicked(MouseEvent e) {
               printDebugData();
           }
       });
 
    }
 
    private void printDebugData(){
        String NameValue_strtable=table.getValueAt(table.getSelectedRow(),0).toString();
        namevalue.setText(NameValue_strtable);
        repaint();
    }
    
    public static void main(String[] args) {
        Rajit frame = new Rajit();
        frame.setVisible(true);
    }
} 

[ravi v kumar]

did u got ur problem solved...?

[ankur rathi]

Hi RK ,

when I comment this line then I am getting table & a textfield on a frame .
but then also my problem remains the same . I am not able to control size .

scrollPane.setLayout(new ScrollPaneLayout());

thanks .