Here you can find the source of maxIt(JFrame jFrame)
public static void maxIt(JFrame jFrame)
//package com.java2s; /*/*from w w w. j av a 2 s . com*/ * Copyright (c) 2009 Albert Kurucz. * * This file, Util.java is part of JTStand. * * JTStand is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * JTStand 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with GTStand. If not, see <http://www.gnu.org/licenses/>. */ import java.awt.Dimension; import java.awt.GraphicsEnvironment; import java.awt.Rectangle; import javax.swing.JFrame; public class Main { public static void maxIt(JFrame jFrame) { GraphicsEnvironment env = GraphicsEnvironment.getLocalGraphicsEnvironment(); Rectangle r = env.getMaximumWindowBounds(); Dimension d = r.getSize(); jFrame.setSize(d); jFrame.setPreferredSize(d); } }