JTable won t show column headers

Question

I have the following code to instantiate a JTable  the table comes up with the right number of rows and columns  but there is no sign of the titles atop the columns    public Panel1         int  nmbrRows       setLayout null       setBackground Color magenta       Vector colHdrs         create column headers      colHdrs   new Vector 10       colHdrs addElement new String  Ticker             more statements like the above to establish all col  titles             nmbrRows   25      DefaultTableModel tblModel   new DefaultTableModel nmbrRows  colHdrs size         tblModel setColumnIdentifiers colHdrs        scrTbl   new JTable tblModel       scrTbl setBounds 25  50  950  600       scrTbl setBackground Color gray       scrTbl setRowHeight 23           add scrTbl      rest of constructor          Comparing this to other table-making code  I don t see any missing steps  but something must be absent

User · Answer

public table2         setDefaultCloseOperation JFrame EXIT ON CLOSE       setBounds 100  100  485  218       setTitle  jtable        getContentPane   setLayout null        String data            Row1 1    Row1 2    Row1 3                    Row2 1    Row2 2    Row2 3                    Row3 1    Row3 2    Row3 3                    Row4 1    Row4 2    Row4 3             String header        Column 1    Column 2    Column 3             Table     JTable table   new JTable data header            ScrollPane     JScrollPane scrollPane   new JScrollPane table       scrollPane setBounds 36  37  407  79       getContentPane   add scrollPane              try this

User · Answer

The main difference between this answer and the accepted answer is the use of setViewportView   instead of add     How to put JTable in JScrollPane using Eclipse IDE    Create JScrollPane container via Design tab  Stretch JScrollPane to desired size  applies to Absolute Layout   Drag and drop JTable component on top of JScrollPane  Viewport area     In Structure   Components  table should be a child of scrollPane    The generated code would be something like this   JScrollPane scrollPane   new JScrollPane         JTable table   new JTable    scrollPane setViewportView table

User · Answer

Put your JTable inside a JScrollPane  Try this   add new JScrollPane scrTbl

User · Answer

As said in previous answers the  normal  way is to add it to a JScrollPane  but sometimes you don t want it to scroll  don t ask me when     Then you can add the TableHeader yourself  Like this   JPanel tablePanel   new JPanel new BorderLayout     JTable table   new JTable    tablePanel add table  BorderLayout CENTER   tablePanel add table getTableHeader    BorderLayout NORTH

[java] JTable won't show column headers

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