Java tutorial
//package com.java2s; /* * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.awt.Dimension; import java.awt.GraphicsConfiguration; import java.awt.GraphicsDevice; import java.awt.GraphicsEnvironment; import java.awt.geom.Rectangle2D; public class Main { /** * Get the full screen size recognizing multiple monitor. * * @return full screen size */ public static Dimension getFullScreenSize() { Rectangle2D result = new Rectangle2D.Double(); GraphicsEnvironment localGE = GraphicsEnvironment.getLocalGraphicsEnvironment(); for (GraphicsDevice gd : localGE.getScreenDevices()) { for (GraphicsConfiguration graphicsConfiguration : gd.getConfigurations()) { Rectangle2D.union(result, graphicsConfiguration.getBounds(), result); } } return new Dimension((int) result.getWidth(), (int) result.getHeight()); } }