Java Utililty Methods JTable Header

List of utility methods to do JTable Header

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Description

The list of methods to do JTable Header are organized into topic(s).

Method

voidremoveBadChars(JTable table, boolean skipHeaderBoolean)
remove Bad Chars 
int columns = table.getColumnCount();
int rows = table.getRowCount();
int startRow = 0;
cleanHeaderCells(table);
startRow = 1;
for (int rCnt = startRow; rCnt < rows; ++rCnt) {
    for (int cCnt = 0; cCnt < columns; ++cCnt) {
        if (table.getValueAt(rCnt, cCnt) == null) {
...
voidsetHeaderIcon(JTable table, final int column, final ImageIcon icon)
set Header Icon 
final TableCellRenderer orig = table.getTableHeader().getDefaultRenderer();
table.getTableHeader().getColumnModel().getColumn(column).setHeaderRenderer(new DefaultTableCellRenderer() {
    @Override
    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected,
            boolean hasFocus, int row, int column) {
        JLabel com = (JLabel) orig.getTableCellRendererComponent(table, value, isSelected, hasFocus, row,
                column);
        com.setHorizontalAlignment(JLabel.LEADING); 
...
voidsetOptimalHeaderWidth(int col)
sets the optimal header width for the given column. 
setOptimalHeaderWidth(getJTable(), col);
voidsetPressedColumn(JTableHeader tableHeader, int columnModelIndex)
Sets the given column for the given JTableHeader as pressed. 
tableHeader.putClientProperty(PRESSED_COLUMN_KEY, columnModelIndex);
voidsetTableHeaderCellRenderer(TableColumn tableCol)
set Table Header Cell Renderer 
tableCol.setHeaderRenderer(new DefaultTableCellRenderer() {
    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected,
            boolean hasFocus, int row, int column) {
        if (table != null) {
            JComponent c = (JComponent) table.getTableHeader().getDefaultRenderer();
            setForeground(c.getForeground());
            setBackground(c.getBackground());
            setFont(c.getFont());
...
TableCellRenderersetupAsRowHeader(final JTable table)
Setups the given table for usage as row-header. 
final JTableHeader header = table.getTableHeader();
Color background = header.getBackground();
Color foreground = header.getForeground();
if (background == null || background.equals(table.getBackground())) {
    if (!SystemColor.control.equals(background)) {
        background = SystemColor.control;
        foreground = SystemColor.controlText;
    } else {
...
voidsizeColumnsToFit(JTable table, boolean useHeader, boolean useContent)
size Columns To Fit 
if (!useHeader && !useContent)
    return;
for (int i = 0; i < table.getColumnCount(); i++) {
    TableColumn column = table.getColumnModel().getColumn(i);
    int columnIndex = column.getModelIndex();
    int preferredWidth = 0;
    if (useContent) {
        for (int row = 0; row < table.getModel().getRowCount(); row++) {
...
String[]tableHeaders(JTable jtable)
Convert the table model column names to an array of strings. 
TableModel tm = jtable.getModel();
List<String> colNameList = new ArrayList<>();
for (int i = 0; i < tm.getColumnCount(); i++) {
    colNameList.add(tm.getColumnName(i));
return colNameList.toArray(new String[colNameList.size()]);