how to modify a table getToolTipText when its already created












0















I want to add a tooltip for every cell, but I'm having trouble modifying a table getToolTipText when its already created with JTable table = new JTable(model);
I found that maybe with getTableCellRendererComponent could work, but i cant find how. Here is an example of what I have.



package com.QA;
import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;


public class cellrenderer {
private JScrollPane getContent() {
DefaultTableModel model = new DefaultTableModel();
model.setColumnIdentifiers(new Object { "Name", "Age", "State" });
model.addRow(new Object { "Peter", 29, "Florida" });
model.addRow(new Object { "Gabriel", 32, "Oregon" });
model.addRow(new Object { "Hans", 27, "Texas" });
model.addRow(new Object { "Serge", 30, "Ohio" });
JTable table = new JTable(model);
TableColumnModel colModel = table.getColumnModel();
for(int j = 0; j < colModel.getColumnCount(); j++)
colModel.getColumn(j).setCellRenderer(new RowRenderer());
return new JScrollPane(table);
}

public static void main(String args) {
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setContentPane(new cellrenderer().getContent());
f.setSize(400,140);
f.setLocation(200,200);
f.setVisible(true);
}
}

class RowRenderer extends DefaultTableCellRenderer {
public Component getTableCellRendererComponent(JTable table,
Object value,
boolean isSelected,
boolean hasFocus,
int row, int column) {
super.getTableCellRendererComponent(table, value, isSelected,
hasFocus, row, column);
****TRYING TO SET TOOL TIP FOR EVERYCELL***


return this;
}
}


And this is the working code that i does what i want but only when the table is being created JTable table = new JTable(data, columns){....



package com.QA;


import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingUtilities;
import java.awt.event.MouseEvent;


public class Stooltipxcell extends JFrame
{
public Stooltipxcell()
{
//headers for the table
String columns = new String {
"Id", "Name", "Hourly Rate", "Part Time"
};

//actual data for the table in a 2d array
Object data = new Object {
{1, "John", 40.0, false },
{2, "Rambo", 70.0, false },
{3, "Zorro", 60.0, true },
};
//create table with data
JTable table = new JTable(data, columns){
//Implement table cell tool tips.
public String getToolTipText(MouseEvent e) {
String tip = null;
java.awt.Point p = e.getPoint();
int rowIndex = rowAtPoint(p);
int colIndex = columnAtPoint(p);

try {
tip = getValueAt(rowIndex, colIndex).toString();
} catch (RuntimeException e1) {
//catch null pointer exception if mouse is over an empty line
}

return tip;
}};

//add the table to the frame
this.add(new JScrollPane(table));

this.setTitle("Table Example");
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.pack();
this.setVisible(true);
}

public static void main(String args)
{
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new Stooltipxcell();
}
});
}
}









share|improve this question


















  • 2





    DefaultTableCellRenderer has a setToolTipText() method. Just call it.

    – JB Nizet
    Nov 23 '18 at 22:29








  • 2





    See the section from the Swing tutorial on: Specifying Tool Tips For Cells

    – camickr
    Nov 23 '18 at 22:33











  • thanks for pointing me the way, here is what i added for it to work setToolTipText((String)table.getValueAt(row, column).toString());

    – tseres
    Nov 23 '18 at 22:51











  • Why don't you use value instead of table.getValueAt(row, column)?

    – JB Nizet
    Nov 23 '18 at 23:13











  • I dont know how to do that

    – tseres
    Nov 24 '18 at 0:11
















0















I want to add a tooltip for every cell, but I'm having trouble modifying a table getToolTipText when its already created with JTable table = new JTable(model);
I found that maybe with getTableCellRendererComponent could work, but i cant find how. Here is an example of what I have.



package com.QA;
import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;


public class cellrenderer {
private JScrollPane getContent() {
DefaultTableModel model = new DefaultTableModel();
model.setColumnIdentifiers(new Object { "Name", "Age", "State" });
model.addRow(new Object { "Peter", 29, "Florida" });
model.addRow(new Object { "Gabriel", 32, "Oregon" });
model.addRow(new Object { "Hans", 27, "Texas" });
model.addRow(new Object { "Serge", 30, "Ohio" });
JTable table = new JTable(model);
TableColumnModel colModel = table.getColumnModel();
for(int j = 0; j < colModel.getColumnCount(); j++)
colModel.getColumn(j).setCellRenderer(new RowRenderer());
return new JScrollPane(table);
}

public static void main(String args) {
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setContentPane(new cellrenderer().getContent());
f.setSize(400,140);
f.setLocation(200,200);
f.setVisible(true);
}
}

class RowRenderer extends DefaultTableCellRenderer {
public Component getTableCellRendererComponent(JTable table,
Object value,
boolean isSelected,
boolean hasFocus,
int row, int column) {
super.getTableCellRendererComponent(table, value, isSelected,
hasFocus, row, column);
****TRYING TO SET TOOL TIP FOR EVERYCELL***


return this;
}
}


And this is the working code that i does what i want but only when the table is being created JTable table = new JTable(data, columns){....



package com.QA;


import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingUtilities;
import java.awt.event.MouseEvent;


public class Stooltipxcell extends JFrame
{
public Stooltipxcell()
{
//headers for the table
String columns = new String {
"Id", "Name", "Hourly Rate", "Part Time"
};

//actual data for the table in a 2d array
Object data = new Object {
{1, "John", 40.0, false },
{2, "Rambo", 70.0, false },
{3, "Zorro", 60.0, true },
};
//create table with data
JTable table = new JTable(data, columns){
//Implement table cell tool tips.
public String getToolTipText(MouseEvent e) {
String tip = null;
java.awt.Point p = e.getPoint();
int rowIndex = rowAtPoint(p);
int colIndex = columnAtPoint(p);

try {
tip = getValueAt(rowIndex, colIndex).toString();
} catch (RuntimeException e1) {
//catch null pointer exception if mouse is over an empty line
}

return tip;
}};

//add the table to the frame
this.add(new JScrollPane(table));

this.setTitle("Table Example");
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.pack();
this.setVisible(true);
}

public static void main(String args)
{
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new Stooltipxcell();
}
});
}
}









share|improve this question


















  • 2





    DefaultTableCellRenderer has a setToolTipText() method. Just call it.

    – JB Nizet
    Nov 23 '18 at 22:29








  • 2





    See the section from the Swing tutorial on: Specifying Tool Tips For Cells

    – camickr
    Nov 23 '18 at 22:33











  • thanks for pointing me the way, here is what i added for it to work setToolTipText((String)table.getValueAt(row, column).toString());

    – tseres
    Nov 23 '18 at 22:51











  • Why don't you use value instead of table.getValueAt(row, column)?

    – JB Nizet
    Nov 23 '18 at 23:13











  • I dont know how to do that

    – tseres
    Nov 24 '18 at 0:11














0












0








0








I want to add a tooltip for every cell, but I'm having trouble modifying a table getToolTipText when its already created with JTable table = new JTable(model);
I found that maybe with getTableCellRendererComponent could work, but i cant find how. Here is an example of what I have.



package com.QA;
import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;


public class cellrenderer {
private JScrollPane getContent() {
DefaultTableModel model = new DefaultTableModel();
model.setColumnIdentifiers(new Object { "Name", "Age", "State" });
model.addRow(new Object { "Peter", 29, "Florida" });
model.addRow(new Object { "Gabriel", 32, "Oregon" });
model.addRow(new Object { "Hans", 27, "Texas" });
model.addRow(new Object { "Serge", 30, "Ohio" });
JTable table = new JTable(model);
TableColumnModel colModel = table.getColumnModel();
for(int j = 0; j < colModel.getColumnCount(); j++)
colModel.getColumn(j).setCellRenderer(new RowRenderer());
return new JScrollPane(table);
}

public static void main(String args) {
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setContentPane(new cellrenderer().getContent());
f.setSize(400,140);
f.setLocation(200,200);
f.setVisible(true);
}
}

class RowRenderer extends DefaultTableCellRenderer {
public Component getTableCellRendererComponent(JTable table,
Object value,
boolean isSelected,
boolean hasFocus,
int row, int column) {
super.getTableCellRendererComponent(table, value, isSelected,
hasFocus, row, column);
****TRYING TO SET TOOL TIP FOR EVERYCELL***


return this;
}
}


And this is the working code that i does what i want but only when the table is being created JTable table = new JTable(data, columns){....



package com.QA;


import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingUtilities;
import java.awt.event.MouseEvent;


public class Stooltipxcell extends JFrame
{
public Stooltipxcell()
{
//headers for the table
String columns = new String {
"Id", "Name", "Hourly Rate", "Part Time"
};

//actual data for the table in a 2d array
Object data = new Object {
{1, "John", 40.0, false },
{2, "Rambo", 70.0, false },
{3, "Zorro", 60.0, true },
};
//create table with data
JTable table = new JTable(data, columns){
//Implement table cell tool tips.
public String getToolTipText(MouseEvent e) {
String tip = null;
java.awt.Point p = e.getPoint();
int rowIndex = rowAtPoint(p);
int colIndex = columnAtPoint(p);

try {
tip = getValueAt(rowIndex, colIndex).toString();
} catch (RuntimeException e1) {
//catch null pointer exception if mouse is over an empty line
}

return tip;
}};

//add the table to the frame
this.add(new JScrollPane(table));

this.setTitle("Table Example");
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.pack();
this.setVisible(true);
}

public static void main(String args)
{
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new Stooltipxcell();
}
});
}
}









share|improve this question














I want to add a tooltip for every cell, but I'm having trouble modifying a table getToolTipText when its already created with JTable table = new JTable(model);
I found that maybe with getTableCellRendererComponent could work, but i cant find how. Here is an example of what I have.



package com.QA;
import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;


public class cellrenderer {
private JScrollPane getContent() {
DefaultTableModel model = new DefaultTableModel();
model.setColumnIdentifiers(new Object { "Name", "Age", "State" });
model.addRow(new Object { "Peter", 29, "Florida" });
model.addRow(new Object { "Gabriel", 32, "Oregon" });
model.addRow(new Object { "Hans", 27, "Texas" });
model.addRow(new Object { "Serge", 30, "Ohio" });
JTable table = new JTable(model);
TableColumnModel colModel = table.getColumnModel();
for(int j = 0; j < colModel.getColumnCount(); j++)
colModel.getColumn(j).setCellRenderer(new RowRenderer());
return new JScrollPane(table);
}

public static void main(String args) {
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setContentPane(new cellrenderer().getContent());
f.setSize(400,140);
f.setLocation(200,200);
f.setVisible(true);
}
}

class RowRenderer extends DefaultTableCellRenderer {
public Component getTableCellRendererComponent(JTable table,
Object value,
boolean isSelected,
boolean hasFocus,
int row, int column) {
super.getTableCellRendererComponent(table, value, isSelected,
hasFocus, row, column);
****TRYING TO SET TOOL TIP FOR EVERYCELL***


return this;
}
}


And this is the working code that i does what i want but only when the table is being created JTable table = new JTable(data, columns){....



package com.QA;


import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingUtilities;
import java.awt.event.MouseEvent;


public class Stooltipxcell extends JFrame
{
public Stooltipxcell()
{
//headers for the table
String columns = new String {
"Id", "Name", "Hourly Rate", "Part Time"
};

//actual data for the table in a 2d array
Object data = new Object {
{1, "John", 40.0, false },
{2, "Rambo", 70.0, false },
{3, "Zorro", 60.0, true },
};
//create table with data
JTable table = new JTable(data, columns){
//Implement table cell tool tips.
public String getToolTipText(MouseEvent e) {
String tip = null;
java.awt.Point p = e.getPoint();
int rowIndex = rowAtPoint(p);
int colIndex = columnAtPoint(p);

try {
tip = getValueAt(rowIndex, colIndex).toString();
} catch (RuntimeException e1) {
//catch null pointer exception if mouse is over an empty line
}

return tip;
}};

//add the table to the frame
this.add(new JScrollPane(table));

this.setTitle("Table Example");
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.pack();
this.setVisible(true);
}

public static void main(String args)
{
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new Stooltipxcell();
}
});
}
}






java swing






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 23 '18 at 22:24









tserestseres

266




266








  • 2





    DefaultTableCellRenderer has a setToolTipText() method. Just call it.

    – JB Nizet
    Nov 23 '18 at 22:29








  • 2





    See the section from the Swing tutorial on: Specifying Tool Tips For Cells

    – camickr
    Nov 23 '18 at 22:33











  • thanks for pointing me the way, here is what i added for it to work setToolTipText((String)table.getValueAt(row, column).toString());

    – tseres
    Nov 23 '18 at 22:51











  • Why don't you use value instead of table.getValueAt(row, column)?

    – JB Nizet
    Nov 23 '18 at 23:13











  • I dont know how to do that

    – tseres
    Nov 24 '18 at 0:11














  • 2





    DefaultTableCellRenderer has a setToolTipText() method. Just call it.

    – JB Nizet
    Nov 23 '18 at 22:29








  • 2





    See the section from the Swing tutorial on: Specifying Tool Tips For Cells

    – camickr
    Nov 23 '18 at 22:33











  • thanks for pointing me the way, here is what i added for it to work setToolTipText((String)table.getValueAt(row, column).toString());

    – tseres
    Nov 23 '18 at 22:51











  • Why don't you use value instead of table.getValueAt(row, column)?

    – JB Nizet
    Nov 23 '18 at 23:13











  • I dont know how to do that

    – tseres
    Nov 24 '18 at 0:11








2




2





DefaultTableCellRenderer has a setToolTipText() method. Just call it.

– JB Nizet
Nov 23 '18 at 22:29







DefaultTableCellRenderer has a setToolTipText() method. Just call it.

– JB Nizet
Nov 23 '18 at 22:29






2




2





See the section from the Swing tutorial on: Specifying Tool Tips For Cells

– camickr
Nov 23 '18 at 22:33





See the section from the Swing tutorial on: Specifying Tool Tips For Cells

– camickr
Nov 23 '18 at 22:33













thanks for pointing me the way, here is what i added for it to work setToolTipText((String)table.getValueAt(row, column).toString());

– tseres
Nov 23 '18 at 22:51





thanks for pointing me the way, here is what i added for it to work setToolTipText((String)table.getValueAt(row, column).toString());

– tseres
Nov 23 '18 at 22:51













Why don't you use value instead of table.getValueAt(row, column)?

– JB Nizet
Nov 23 '18 at 23:13





Why don't you use value instead of table.getValueAt(row, column)?

– JB Nizet
Nov 23 '18 at 23:13













I dont know how to do that

– tseres
Nov 24 '18 at 0:11





I dont know how to do that

– tseres
Nov 24 '18 at 0:11












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