Hy!I want to make a table with number of rows and columns took from 2 texfields!I have 2 textFieldsfor row and column number and a Create button!I add 2 valkues for the textFields,for ex 6,7 and i push the create button and the table created has 6 rows and 7 columns!How can i do that?Any help?
Thanks
Thanks! I tried this one but it gives me a nullPointerException at : int row = Integer.parseInt(jTextfieldRow.getText()).
I don't know what to do to fix it!
I made it this way!the int numRows = Integer.parseInt(jTextFieldRow.getText()).But when i run the applic it gaves me a nullPointerException!Any idea?
This is my code!I work with Eclipse!Here i have a Create button!I want the table to be created after i add the row and column numbers and push the button!But i dont know ho to do it.Please give me some indications!Thanks!
import javax.swing.JPanel;
import javax.swing.JLabel;
import java.awt.Rectangle;
import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.JScrollPane;
import javax.swing.JTable;
public class Gamer extends JPanel {
private static final long serialVersionUID = 1L;
private JLabel jLabelRow = null;
private JTextField jTextFieldRow = null;
private JLabel jLabelColumn = null;
private JTextField jTextFieldColumn = null;
private JButton jButtonCreate = null;
private JScrollPane jScrollPane = null;
private JTable jTable = null;
int numberRows = Integer.parseInt(jTextFieldRow.getText());
int numerColumns = Integer.parseInt(jTextFieldColumn.getText());
/**
* This method initializes jTextFieldRow
*
* @return javax.swing.JTextField
*/
private JTextField getJTextFieldRow() {
if (jTextFieldRow == null) {
jTextFieldRow = new JTextField();
jTextFieldRow.setBounds(new Rectangle(105, 15, 76, 26));
}
return jTextFieldRow;
}
/**
* This method initializes jTextFieldColumn
*
* @return javax.swing.JTextField
*/
private JTextField getJTextFieldColumn() {
if (jTextFieldColumn == null) {
jTextFieldColumn = new JTextField();
jTextFieldColumn.setBounds(new Rectangle(320, 12, 76, 23));
}
return jTextFieldColumn;
}
/**
* This method initializes jButtonCreate
*
* @return javax.swing.JButton
*/
private JButton getJButtonCreate() {
if (jButtonCreate == null) {
jButtonCreate = new JButton();
jButtonCreate.setBounds(new Rectangle(436, 13, 108, 25));
jButtonCreate.setText("Create");
}
return jButtonCreate;
}
/**
* This method initializes jScrollPane
*
* @return javax.swing.JScrollPane
*/
private JScrollPane getJScrollPane() {
if (jScrollPane == null) {
jScrollPane = new JScrollPane();
jScrollPane.setBounds(new Rectangle(2, 61, 565, 403));
jScrollPane.setViewportView(getJTable());
}
return jScrollPane;
}
/**
* This method initializes jTable
*
* @return javax.swing.JTable
*/
private JTable getJTable() {
if (jTable == null) {
jTable = new JTable(numberRows,numerColumns);
}
return jTable;
}
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
}
/**
* This is the default constructor
*/
public Gamer() {
super();
initialize();
}
/**
* This method initializes this
*
* @return void
*/
private void initialize() {
jLabelColumn = new JLabel();
jLabelColumn.setBounds(new Rectangle(226, 14, 73, 23));
jLabelColumn.setText("Column Nr");
jLabelRow = new JLabel();
jLabelRow.setBounds(new Rectangle(14, 13, 70, 26));
jLabelRow.setText("Row Nr");
this.setSize(569, 464);
this.setLayout(null);
this.add(jLabelRow, null);
this.add(getJTextFieldRow(), null);
this.add(jLabelColumn, null);
this.add(getJTextFieldColumn(), null);
this.add(getJButtonCreate(), null);
this.add(getJScrollPane(), null);
}
} // @jve:decl-index=0:visual-constraint="10,10"
Finally i made it!I used tableModel, and it worked!Thanks Masijade.
How can u help me how to put elements in the table?For example fill all the table cells with "1",even if a create a 4/4 table or a 10/10 table!
> How can u help me how to put elements in the
> table?For example fill all the table cells with
> "1",even if a create a 4/4 table or a 10/10 table!
jtable.setValueAt("1", row, column);
or
jtable.getModel().setValueAt("1", row, column);
Yannix