Here you can find the source of defaultColumnWidth()
public static int defaultColumnWidth()
//package com.java2s; /*/*from w ww. j a v a 2 s . co m*/ * GUIUtilities.java - Various GUI utility functions * :tabSize=4:indentSize=4:noTabs=false: * :folding=explicit:collapseFolds=1: * * Copyright (C) 1999, 2004 Slava Pestov * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ import javax.swing.JLabel; import javax.swing.UIDefaults; import javax.swing.UIManager; import java.awt.*; public class Main { /** * Column width for JTable, based on global defaults. */ public static int defaultColumnWidth() { return defaultTableCellSize().width; } /** * JTable cell size, based on global defaults. */ public static Dimension defaultTableCellSize() { JLabel label = new JLabel("miniminiminiminiminiminiminiminiminimini"); UIDefaults defaults = UIManager.getDefaults(); Object font = defaults.get("Table.font"); if (font instanceof Font) label.setFont((Font) font); return label.getPreferredSize(); } }