获取组件居中的位置坐标

public static int[] getCenterLocation(Component componet){Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();int width = screenSize.width;int height = screenSize.height;int left = (width - componet.getSize().width) / 2;int top = (height - componet.getSize().height) /2;int location[] = {left,top};return location;}

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调用：

ExportFrame export = ExportFrame.getInstance();            int location[] = LocationUtil.getCenterLocation(export);            export.setLocation(location[0], location[1]);            export.setVisible(true);

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