Jcheckbox isn't visible in a particular column of a jtable. What to do...?

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JCheckbox isn't visible in a particular column of a JTable what to do...?
All other types are OK but not the checkbox

What I have tried:

In file MyTableModel which extends DefaultTableModel I wrote
{

	public MyTableModel(Object row[][],Object colNames[])
	{
		super(row,colNames);
	}
	@Override
	public Class getColumnClass(int col)
	{
		TabStruct tbs=new TabStruct("");
		int totPage=tbs.iPage;
		char[] c=new char[1]; 
//		DateRenderer r=new DateRenderer();
		for(int page=0;page<totPage;page++)
		{
			if(d.dataTp[page][col]=="Number")
				return Integer.class;
			else if(d.dataTp[page][col]=="Date")
				return Date.class;
			else if(d.dataTp[page][col]=="Decimal")
				return	Double.class;
			else if(d.dataTp[page][col]=="Text")
				return String.class;
			else if(d.dataTp[page][col]=="Image")
				return Image.class;
			else if(d.dataTp[page][col]=="bool")
				return boolean.class;
			else
				return String.class;
		}
		return String.class;
	}

Posted 20-Feb-23 19:20pm

Member 12712527

Updated 20-Feb-23 21:50pm

v2

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Comments

Richard MacCutchan 21-Feb-23 3:15am

I don't see any references to JCheckbox in your question.

Member 12712527 21-Feb-23 3:37am

why do you need checkbox...see the code below

public class jt_jc extends JFrame
{
private JTable table;
private DefaultTableModel model;
public JTable_JCheckBox() {
Random rnd = new Random();
model = new DefaultTableModel(new Object[]{"Check Box1","Check Box2", "Check Box3"}, 0) {
@Override
public Class getColumnClass(int columnIndex) {
return Boolean.class;
}
};
for (int index = 0; index < 10; index++) {
model.addRow(new Object[]{rnd.nextBoolean()});
}
table = new JTable(model);
add(new JScrollPane(table));
setTitle("JCheckBoxJTable Test");
setSize(375, 250);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLocationRelativeTo(null);
setVisible(true);
}

Member 12712527 21-Feb-23 3:41am

I have already a table with the following datatypes[int,double,string....]
how could i add this to my table

Member 12712527 21-Feb-23 3:47am

OKay thank you sir I got it. It was a silly mistake of 'boolean' and 'Boolean'

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Richard MacCutchan · Answer 1 · 2023-02-20T21:50:00

Solution 1

Quote:
OKay thank you sir I got it. It was a silly mistake of 'boolean' and 'Boolean'

Posted 20-Feb-23 21:50pm

Richard MacCutchan