Here you can find the source of centerPoint(int width, int height, JFrame frame)
public static Point centerPoint(int width, int height, JFrame frame)
//package com.java2s; /******************************************************************************* * Copyright (c) 2009-2015 The Last Check, LLC, All Rights Reserved * * 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.//from www . j a va 2 s. c om ******************************************************************************/ import java.awt.Dimension; import java.awt.Point; import javax.swing.JFrame; public class Main { public static Point centerPoint(int width, int height, JFrame frame) { Point point = null; Dimension frameSize = frame.getSize(); Point framePoint = frame.getLocation(); point = new Point(framePoint.x + (frameSize.width / 2) - (width / 2), framePoint.y + (frameSize.height / 2) - (height / 2)); return point; } }