这是用elipes平台开发的java编程实例,数据库用access .若想用elipes软件加以开发只要连接该数据库即可.数据库连接步骤如下:"开始"-"设置"-"控制面板"-"管理工具"-"数据源"

				package lib;
				
				import java.awt.*;
				
				/**
				 *A PUBLIC CLASS FOR CENTER.JAVA
				 */
				public class Center {
					JLibrary l; //for using the class in JLibrary.java
				
					public Center(JLibrary l) {
						this.l = l;
					}
				
					public void LibraryCenter() {
						//for centering the window
						Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
						l.setLocation((screenSize.width - l.getWidth()) / 2, (screenSize.height - l.getHeight()) / 2);
					}
				}