import java.awt.*;import java.sql.*;import java.awt.event.*;import javax.swing.*;/** * 學生信息管理模塊 * 刪除學生信息的類 */public class DelStuInfo extends StuInfo{	String sNum_str = "";	public DelStuInfo() {		this.setTitle("刪除學生信息");		this.setResizable(false);		sNum.setEditable(false);		sNum.setText("請查詢學號");		sName.setEditable(false);		sSex.setEditable(false);		sSethnic.setEditable(false);		sBirth.setEditable(false);		sYear.setEditable(false);		sMajor.setEditable(false);		sCollege.setEditable(false);		sHome.setEditable(false);		//設置運行時窗口的位置		Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();		this.setLocation((screenSize.width - 400) / 2, 			(screenSize.height - 300) / 2 + 45);	}	public void downInit(){		searchInfo.setText("學號查詢");		searchInfo.setFont(new Font("Dialog",0,12));		downPanel.add(searchInfo);		deleteInfo.setText("刪除");		deleteInfo.setFont(new Font("Dialog",0,12));		downPanel.add(deleteInfo);		eixtInfo.setText("退出");		eixtInfo.setFont(new Font("Dialog",0,12));		downPanel.add(eixtInfo);		searchInfo.setEnabled(true);		deleteInfo.setEnabled(false);		eixtInfo.setEnabled(true);		//添加事件偵聽		searchInfo.addActionListener(this);		deleteInfo.addActionListener(this);		eixtInfo.addActionListener(this);		contentPane.add(downPanel,BorderLayout.SOUTH);	}	/**	 * 事件處理	 */	public void actionPerformed(ActionEvent e) {		Object obj = e.getSource();		String[] s = new String[8];		if (obj == eixtInfo) { //退出			this.dispose();		}		else if (obj == deleteInfo) { //刪除			int ifdel = JOptionPane.showConfirmDialog(null,"真的要刪除該信息？","提示信息",JOptionPane.YES_NO_OPTION,JOptionPane.INFORMATION_MESSAGE );			if(ifdel == JOptionPane.YES_OPTION){				StuBean delStu = new StuBean();				delStu.stuDel(sNum.getText());								this.dispose();				DelStuInfo dsi = new DelStuInfo();				dsi.downInit();				dsi.pack();				dsi.setVisible(true);			}			else{				return;			}		}		else if (obj == searchInfo) { //學號查詢			StuInfoSearchSnum siss = new StuInfoSearchSnum(this);			siss.pack();			siss.setVisible(true);			sNum_str = siss.getSnum();			StuBean searchStu = new StuBean();			s = searchStu.stuSearch(sNum_str);			if(s == null){				JOptionPane.showMessageDialog(null, "記錄不存在！");				sNum.setText("請查詢學號");				sName.setText("");				sSex.setText("");				sSethnic.setText("");				sHome.setText("");				sYear.setText("");				sMajor.setText("");				sCollege.setText("");				sBirth.setText("");				deleteInfo.setEnabled(false);				return;			}			else{				sNum.setText(sNum_str);				sName.setText(s[0]);				sSex.setText(s[1]);				sSethnic.setText(s[2]);				sHome.setText(s[3]);				sYear.setText(s[4]);				sMajor.setText(s[5]);				sCollege.setText(s[6]);				sBirth.setText(s[7]);				deleteInfo.setEnabled(true);			}					}	}}