Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.awt.Component;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableColumnModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;

public class Main {
    public Main() {
        JTable table = new JTable(3, 3);
        table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);

        for (int i = 0; i < table.getColumnCount(); i++) {
            DefaultTableColumnModel colModel = (DefaultTableColumnModel) table.getColumnModel();
            TableColumn col = colModel.getColumn(i);
            int width = 0;

            TableCellRenderer renderer = col.getHeaderRenderer();
            for (int r = 0; r < table.getRowCount(); r++) {
                renderer = table.getCellRenderer(r, i);
                Component comp = renderer.getTableCellRendererComponent(table, table.getValueAt(r, i), false, false,
                        r, i);
                width = Math.max(width, comp.getPreferredSize().width);
            }
            col.setPreferredWidth(width + 2);
        }
        JFrame f = new JFrame();
        f.add(new JScrollPane(table));
        f.setSize(300, 300);
        f.setVisible(true);
    }

    public static void main(String[] argv) {
        new Main();

    }
}