Java Swing - Jtable Text Alignment And Column W... ((link)) [UPDATED]

// Check each row's content width for (int row = 0; row < table.getRowCount(); row++) TableCellRenderer cellRenderer = table.getCellRenderer(row, col); Component cellComp = table.prepareRenderer(cellRenderer, row, col); int cellWidth = cellComp.getPreferredSize().width; maxWidth = Math.max(maxWidth, cellWidth);

public AlignmentRenderer(int alignment) this.alignment = alignment;

The table itself was simple. It displayed a list of product orders for "QuickShip Logistics," a client whose patience was wearing thin. The data was perfect. The backend was solid. But the presentation? It was a crime against visual design.

return this;

By default, Swing aligns text based on the data type: strings are left-aligned, while numbers are right-aligned. To force a specific alignment, you need a . Aligning All Cells in a Column

model = new ProductTableModel(); table = new JTable(model); table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);

@Override public int getRowCount() return data.size(); @Override public int getColumnCount() return columns.length; @Override public String getColumnName(int col) return columns[col]; @Override public Object getValueAt(int row, int col) return data.get(row)[col]; @Override public Class<?> getColumnClass(int col) col == 3) return Double.class; return String.class; Java Swing - JTable Text Alignment And Column W...

import javax.swing.*; import javax.swing.table.DefaultTableCellRenderer; import java.awt.*;

To set the text alignment in a JTable , you can use a DefaultTableCellRenderer . A DefaultTableCellRenderer is a class that provides a default implementation of a cell renderer for a JTable . You can subclass this class to customize the rendering of cells.

((DefaultTableCellRenderer) table.getTableHeader().getDefaultRenderer()) .setHorizontalAlignment(SwingConstants.CENTER); // Check each row's content width for (int

// Apply alignment per column table.getColumnModel().getColumn(0).setCellRenderer(new AlignmentRenderer(SwingConstants.LEFT)); // Product table.getColumnModel().getColumn(1).setCellRenderer(new AlignmentRenderer(SwingConstants.CENTER)); // Qty table.getColumnModel().getColumn(2).setCellRenderer(new AlignmentRenderer(SwingConstants.RIGHT)); // Price table.getColumnModel().getColumn(3).setCellRenderer(new AlignmentRenderer(SwingConstants.RIGHT)); // Total

public ProductTableModel() data.add(new Object[]"Wireless Mouse", 2, 24.99, 49.98); data.add(new Object[]"Mechanical Keyboard", 1, 89.50, 89.50); data.add(new Object[]"USB-C Cable (2m)", 5, 12.30, 61.50); data.add(new Object[]"Very Long Product Name For Testing Overflow", 1, 199.99, 199.99);