Here you can find the source of getWidth(final Image image)
null
.
public static int getWidth(final Image image)
//package com.java2s; /*// w w w .j av a2s .c om * Copyright (C) 2010 vektor * * 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 3 of the License, or * (at your option) 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, see <http://www.gnu.org/licenses/>. */ import java.awt.Image; public class Main { /** * Returns the width of the specified image. * * @return Width of the image, 0 if it is <code>null</code>. */ public static int getWidth(final Image image) { return image == null ? 0 : image.getWidth(null); } }