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java学生管理系统(入门级,不需要安装数据库,用txt存取的数据)

Android平台开发

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  • 开发语言:Java
  • 实例大小:0.15M
  • 下载次数:125
  • 浏览次数:855
  • 发布时间:2019-04-08
  • 实例类别:Android平台开发
  • 发 布 人:crazycode
  • 文件格式:.zip
  • 所需积分:2
 相关标签: 数据库 java 学生

实例介绍

【实例简介】学生管理系统,java代码。用txt文件进行存取, 结构简单,代码也比较简单。

个别运行时有乱码的现象请参考这里修正,如下:
https://www.cnblogs.com/duanweishi/p/10673558.html

【实例截图】

from clipboard


from clipboard


from clipboard


from clipboard

【核心代码】

package student;
import java.awt.BorderLayout;
import javax.swing.ButtonGroup;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.table.DefaultTableModel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class Jiemain {	
	private  JPanel panel1=new JPanel();
	private  JFrame frame=new JFrame();
	private ImageIcon bg = new ImageIcon("img/background.jpg");
	   public WriterRead wr=new WriterRead();
	   public Information ints=new Information();
	   public Seek seek=new Seek();
	    public String[][] students=wr.getxueshengs(); 
	    public String[] interest=ints.getinterest();
		public void begin() {
		// 加载背景图片		
		 JLabel label = new JLabel(bg); 
		 //把标签的大小位置设置为图片刚好填充整个面
		label.setBounds(0,0,bg.getIconWidth(),bg.getIconHeight()); 
		frame.setSize(bg.getIconWidth(),bg.getIconHeight());
		//添加图片到frame的第二层
		frame.getLayeredPane().add(label,new Integer(Integer.MIN_VALUE)); 
		//获取frame的最上层面板为了设置其背景颜色(JPanel有设置透明的方法) 
		JPanel jp=(JPanel)frame.getContentPane(); 
		jp.setOpaque(false);
		//设置透明    //测试用的JPanel 
		frame.setLocation(400,200);
		frame.setVisible(true);
		panel1.setOpaque(false);//也要让他透明  
		panel1.setLayout(null); 
		login();
		}

		private void login()
		{
			panel1.removeAll();
			JButton button1_1=new JButton("增加删除修改学生兴趣");   
			button1_1.setSize(200, 50);   
			button1_1.setLocation(420, 50);   
			JButton button1_2=new JButton("查询或修改学生信息");   
			button1_2.setSize(200, 50);   
			button1_2.setLocation(420, 150); 
			JButton button1_3=new JButton("添加学生信息");   
			button1_3.setSize(200, 50);   
			button1_3.setLocation(420, 250); 
			JButton button1_4=new JButton("删除学生信息");   
			button1_4.setSize(200, 50);   
			button1_4.setLocation(420, 350); 
			JButton button1_5=new JButton("查看所有学生信息");   
			button1_5.setSize(200, 50);   
			button1_5.setLocation(420, 450); 
			  button1_1.addActionListener(new ActionListener() {
		            @Override
		            public void actionPerformed(ActionEvent e) {
		            	rewrite_insterst();
		            }
		        });
			  button1_2.addActionListener(new ActionListener() {
		            @Override
		            public void actionPerformed(ActionEvent e) {
		                rewrite_student();
		            }
		        });
			  button1_3.addActionListener(new ActionListener() {
		            @Override
		            public void actionPerformed(ActionEvent e) {
		            	increase_student();
     
		            }
		        });
			  button1_4.addActionListener(new ActionListener() {
		            @Override
		            public void actionPerformed(ActionEvent e) {
		            	delete_student();
	
		            }
		        });
			  button1_5.addActionListener(new ActionListener() {
		            @Override
		            public void actionPerformed(ActionEvent e) {
		            	show_all_students();
		            }
		        });
			panel1.add(button1_1); 
			panel1.add(button1_2); 	
			panel1.add(button1_3); 	
			panel1.add(button1_4); 	
			panel1.add(button1_5); 
			panel1.repaint();
			frame.add(panel1);
			frame.setVisible(true);
		}
	    public void rewrite_insterst()
	    {
	    	panel1.removeAll();
	    	JButton button0=new JButton("返回");
	    	button0.setSize(100, 50);   
			button0.setLocation(40, 0);
	    	JButton button2_1=new JButton("增加学生兴趣");
	    	button2_1.setSize(200, 50);   
			button2_1.setLocation(420, 50);   
	    	JButton button2_2=new JButton("删除学生兴趣");
	    	button2_2.setSize(200, 50);   
			button2_2.setLocation(420, 150); 
	    	JButton button2_3=new JButton("修改学生兴趣");
	    	button2_3.setSize(200, 50);   
			button2_3.setLocation(420, 250); 
			button0.addActionListener(new ActionListener() {
	            @Override
	            public void actionPerformed(ActionEvent e) {
	            	login();
 
	            }
	        });
			button2_1.addActionListener(new ActionListener() {
	            @Override
	            public void actionPerformed(ActionEvent e) {
	            	increase_interest();
 
	            }
	        });
			button2_2.addActionListener(new ActionListener() {
	            @Override
	            public void actionPerformed(ActionEvent e) {
	            	delete_interest();
 
	            }
	        });
			button2_3.addActionListener(new ActionListener() {
	            @Override
	            public void actionPerformed(ActionEvent e) {
	            	change_interest();
 
	            }
	        });
			panel1.add(button0);
			panel1.add(button2_1);
			panel1.add(button2_2);
			panel1.add(button2_3);
			panel1.repaint();
			frame.setVisible(true);
	    	
	    }
	    public void increase_interest()
	    {
	    	String s=JOptionPane.showInputDialog("请输入:");
	    	try
	    	{
	    		ints.write(s);
	    		JOptionPane.showMessageDialog(null, "添加成功","添加学生兴趣",  JOptionPane.CLOSED_OPTION);
	    	}
	    	 catch(Exception e){  
		            e.toString();  
		            JOptionPane.showMessageDialog(null, "添加出错","添加学生兴趣",  JOptionPane.ERROR_MESSAGE);
		        }  
	    }
	    public void delete_interest()
	    {
	    	String s=JOptionPane.showInputDialog("请输入:");
	    	try
	    	{
	    		int k=0;
	    		for(int i=0;i<interest.length;i  )
	    		{
	    			if(interest[i].equals(s))
	    				break;
	    			k  ;
	    		}
	    		int b=ints.change(k,"-");
	    		if(b==0)
	    			JOptionPane.showMessageDialog(null, "兴趣中没有这一项","删除学生兴趣",  JOptionPane.ERROR_MESSAGE);
	    		else
	    		JOptionPane.showMessageDialog(null, "删除成功","删除学生兴趣",  JOptionPane.CLOSED_OPTION);
	    			
	    	}
	    	 catch(Exception e){  
		            e.toString();  
		            JOptionPane.showMessageDialog(null, "删除出错","删除学生兴趣",  JOptionPane.ERROR_MESSAGE);
		        }  
	    }
	    public void change_interest()
	    {
	    	String s=JOptionPane.showInputDialog("请输入要修改的兴趣:");
	    	String t=JOptionPane.showInputDialog("请输入要修改后的兴趣:");
	    	try
	    	{
	    		int k=0;
	    		for(int i=0;i<interest.length;i  )
	    		{
	    			if(interest[i].equals(s))
	    				break;
	    			k  ;
	    		}
	    		int b=ints.change(k,t);
	    		if(b==0)
	    			JOptionPane.showMessageDialog(null, "兴趣中没有这一项","改变学生兴趣",  JOptionPane.ERROR_MESSAGE);
	    		else
	    		JOptionPane.showMessageDialog(null, "改变成功","改变学生兴趣",  JOptionPane.CLOSED_OPTION);
	    			
	    	}
	    	 catch(Exception e){  
		            e.toString();  
		            JOptionPane.showMessageDialog(null, "删除出错","删除学生兴趣",  JOptionPane.ERROR_MESSAGE);
		        }  
	    }
	    public void rewrite_student()
	    {
	    	panel1.removeAll();
	    	JButton button0=new JButton("返回");
	    	button0.setSize(100, 50);   
			button0.setLocation(40, 0);
	    	JButton button2_1=new JButton("学号查询学生");
	    	button2_1.setSize(200, 50);   
			button2_1.setLocation(420, 100);   
	    	JButton button2_2=new JButton("关键字查找学生");
	    	button2_2.setSize(200, 50);   
			button2_2.setLocation(420, 250); 
	    	JButton button2_3=new JButton("按兴趣查找学生");
	    	button2_3.setSize(200, 50);   
			button2_3.setLocation(420, 400); 
			JTextField textField1=new JTextField();
	    	textField1.setSize(300, 30);
	    	textField1.setLocation(420, 70);
			JTextField textField2=new JTextField();
	    	textField2.setSize(300, 30);
	    	textField2.setLocation(420, 220);
			JTextField textField3=new JTextField();
	    	textField3.setSize(300, 30);
	    	textField3.setLocation(420, 370);
			button0.addActionListener(new ActionListener() {
	            @Override
	            public void actionPerformed(ActionEvent e) {
	            	login();
 
	            }
	        });
			button2_1.addActionListener(new ActionListener() {
	            @Override
	            public void actionPerformed(ActionEvent e) {
	            	String s=JOptionPane.showInputDialog("请输入学号:");
	            	String[][] ss=seek.findstudents(s);
	            	chaozuo(ss);
	            }
			});
			button2_2.addActionListener(new ActionListener() {
	            @Override
	            public void actionPerformed(ActionEvent e) {
	            	String s=JOptionPane.showInputDialog("请输入关键字:");
	            	String[][] ss=seek.findstudents(s);
	            	chaozuo(ss);
 
	            }
	        });
			button2_3.addActionListener(new ActionListener() {
	            @Override
	            public void actionPerformed(ActionEvent e) {
	            	String s=JOptionPane.showInputDialog("请输入兴趣:");
	            	String[][] ss=seek.findbyinterest(s);
	            	chaozuo(ss);
 
	            }
	        });
			panel1.add(button0);
			panel1.add(button2_1);
			panel1.add(button2_2);
			panel1.add(button2_3);
			panel1.repaint();
			frame.setVisible(true);
	    	
	    	
	    }
	    
	    @SuppressWarnings({ "null", "unchecked" })
		public void increase_student()
	    {
	    	panel1.removeAll();
	    	JLabel label1 = new JLabel();
	    	label1.setText("学生学号");
	    	label1.setSize(300, 30);
	    	label1.setLocation(400, 10);   	
	    	JButton button0=new JButton("返回");
	    	button0.setSize(100, 50);   
			button0.setLocation(40,0);
			
	    	button0.addActionListener(new ActionListener() {
	            @Override
	            public void actionPerformed(ActionEvent e) {
	            	login();
 
	            }
	        });
	    	JTextField textField1=new JTextField();
	    	textField1.setSize(300, 30);
	    	textField1.setLocation(400, 50);
	    	JLabel label2 = new JLabel();
	    	label2.setText("学生姓名");
	    	label2.setSize(300, 30);
	    	label2.setLocation(400, 110);
	    	JTextField textField2=new JTextField();
	    	textField2.setSize(300, 30);
	    	textField2.setLocation(400, 150);
	    	JLabel nianji = new JLabel();
	    	nianji.setText("请选择年纪");
	    	nianji.setSize(300, 30);
	    	nianji.setLocation(400, 210);
	    	@SuppressWarnings("rawtypes")
			JComboBox comboBox=new JComboBox();  
	        comboBox.addItem("2012");  
	        comboBox.addItem("2013");  
	        comboBox.addItem("2014");
	        comboBox.addItem("2015");
	        comboBox.addItem("2016");
	        comboBox.addItem("2017");
	        comboBox.setSize(100, 40);
	        comboBox.setLocation(400, 250);
	    	JLabel label3 = new JLabel();
	    	label3.setText("学生专业");
	    	label3.setSize(300, 30);
	    	label3.setLocation(400, 310);
	    	JTextField textField3=new JTextField();
	    	textField3.setSize(300, 30);
	    	textField3.setLocation(400, 350);
	    	JLabel label4 = new JLabel();
	    	label4.setText("请选择性别");
	    	label4.setSize(100, 30);
	    	label4.setLocation(350, 380);
	    	JRadioButton s1=new JRadioButton("男",true);  
	        JRadioButton s2=new JRadioButton("女");
	        ButtonGroup bg = new ButtonGroup();  
	        bg.add(s1);  
	        bg.add(s2);
	        JPanel jp1=new JPanel();
	        jp1.setOpaque(false);
	        jp1.setSize(300, 100);
	        jp1.setLocation(450, 380);
	        jp1.add(s1);
	        jp1.add(s2);
	        JCheckBox[] its= new JCheckBox[interest.length];
	        JLabel label5=new JLabel();
	        label5.setText("请选择兴趣");
	    	label5.setSize(100, 30);
	    	label5.setLocation(350, 400);
	        JPanel jp2=new JPanel();
	        jp2.setLocation(450, 430);
	        jp2.setSize(300, 150);
	        jp2.setOpaque(false);	
	        
	        for(int i=0;i<interest.length;i  )
	        {
	        	its[i]=new JCheckBox(interest[i]);
	        	jp2.add(its[i],BorderLayout.CENTER);	
	        }
	        JButton button1=new JButton("确定添加");
	    	button1.setSize(100, 50);   
			button1.setLocation(400, 580);	
			button1.addActionListener(new ActionListener() {
	            @Override
	            public void actionPerformed(ActionEvent e) {
	            	String id,name,sex,year,major,like="";
	            	id=textField1.getText();
	            	name=textField2.getText();
	            	major=textField3.getText();
	            	year=comboBox.getSelectedItem().toString();
	            	if(s1.isSelected())
	            	sex="男";
	            	else sex="女";
	            	for(int i=0;i<its.length;i  )
	            	{
	            		if(its[i].isSelected())
	            			like =Integer.toString(i) ";";
	            	}
	            	if(id.equals("")||!id.matches("[0-9] "))
	            		JOptionPane.showMessageDialog(null, "学号为空或不是纯数字","添加学生信息",  JOptionPane.ERROR_MESSAGE);
	            	else if(name.equals(""))
	            	JOptionPane.showMessageDialog(null, "姓名为空","添加学生信息",  JOptionPane.ERROR_MESSAGE);
	            	else if(year.equals(""))
	            		JOptionPane.showMessageDialog(null, "年级为空","添加学生信息",  JOptionPane.ERROR_MESSAGE);
	            	else if(major.equals(""))
	            		JOptionPane.showMessageDialog(null, "专业为空", "添加学生信息", JOptionPane.ERROR_MESSAGE);
	            	else {
	            	
	            	wr.write(id "|" name "|" sex "|" year "|" major "|" like);
	            	
	            	JOptionPane.showMessageDialog(null, "添加成功","添加学生信息",  JOptionPane.CLOSED_OPTION);
	            	}
	            	
	            	
	            	

	            }
	        });
	    	panel1.add(textField1);
	    	panel1.add(textField2);
	    	panel1.add(textField3);
	    	panel1.add(jp1);
	    	panel1.add(jp2);
	    	panel1.add(button0);
	    	panel1.add(button1);
	    	panel1.add(comboBox);
	    	panel1.add(label1);
	    	panel1.add(label2);
	    	panel1.add(label3);
	    	panel1.add(label4);
	    	panel1.add(label5);
	    	panel1.add(nianji);
	    	panel1.repaint();
	    	frame.setVisible(true); 	
	    }
	    public void delete_student()
	    {
	    	panel1.removeAll();
	    	JButton button0=new JButton("返回");
	    	button0.setSize(100, 50);   
			button0.setLocation(40, 0);
	    	JButton button2_1=new JButton("学号删除学生");
	    	button2_1.setSize(200, 50);   
			button2_1.setLocation(420, 50);   
	    	JButton button2_2=new JButton("关键字删除学生");
	    	button2_2.setSize(200, 50);   
			button2_2.setLocation(420, 150); 
	    	JButton button2_3=new JButton("按兴趣删除学生");
	    	button2_3.setSize(200, 50);   
			button2_3.setLocation(420, 250); 
			button0.addActionListener(new ActionListener() {
	            @Override
	            public void actionPerformed(ActionEvent e) {
	            	login();
 
	            }
	        });
			button2_1.addActionListener(new ActionListener() {
	            @Override
	            public void actionPerformed(ActionEvent e) {
	            	String s=JOptionPane.showInputDialog("请输入学号:");
	            	String[][] ss=seek.findstudents(s);
	            	if(ss[0][0]==null)
	            	{
	            		JOptionPane.showMessageDialog(null, "学号为空","删除学生信息",  JOptionPane.ERROR_MESSAGE);
	            	}
	            	else
	            	{int j=0;
            		while(ss[j][0]!=null)
            		{
            			wr.delete(Integer.parseInt(ss[j][6]));
            			j  ;
            		}
	            		JOptionPane.showMessageDialog(null, "删除成功","修改学生信息",  JOptionPane.CLOSED_OPTION);
	            	}
 
	            }
	        });
			button2_2.addActionListener(new ActionListener() {
	            @Override
	            public void actionPerformed(ActionEvent e) {
	            	String s=JOptionPane.showInputDialog("请输入关键字:");
	            	String[][] ss=seek.findstudents(s);
	            	if(ss[0][0]==null)
	            	{
	            		JOptionPane.showMessageDialog(null, "关键字空","删除学生信息",  JOptionPane.ERROR_MESSAGE);
	            	}
	            	else
	            	{
	            		int j=0;
	            		while(ss[j][0]!=null)
	            		{
	            			wr.delete(Integer.parseInt(ss[j][6]));
	            			j  ;	            			
	            		}
	            		JOptionPane.showMessageDialog(null, "删除成功","删除学生信息",  JOptionPane.CLOSED_OPTION);
	            	}
	            	
 
	            }
	        });
			button2_3.addActionListener(new ActionListener() {
	            @Override
	            public void actionPerformed(ActionEvent e) {
	            	String s=JOptionPane.showInputDialog("请输入兴趣:");
	            	String[][] ss=seek.findbyinterest(s);
	            	if(ss[0][0]==null)
	            	{
	            		JOptionPane.showMessageDialog(null, "兴趣为空","删除学生信息",  JOptionPane.ERROR_MESSAGE);
	            	}
	            	else
	            	{
	            		int j=0;
	            		while(ss[j][0]!=null)
	            		{
	            			wr.delete(Integer.parseInt(ss[j][6]));
	            			j  ;
	            		}
	            		JOptionPane.showMessageDialog(null, "删除成功","修改学生信息",  JOptionPane.CLOSED_OPTION);
	            	}
 
	            }
	        });
			panel1.add(button0);
			panel1.add(button2_1);
			panel1.add(button2_2);
			panel1.add(button2_3);
			panel1.repaint();
			frame.setVisible(true);
	    	
	    }
	    public void show_all_students()
	    {
	    	JTable table;
	    	JButton bt1 = new JButton("修改");
	    	JButton bt2 = new JButton("删除");
	    	JPanel btnPanel = new JPanel(new java.awt.GridLayout(1, 2));
	        btnPanel.add(bt1);
	        btnPanel.add(bt2);
	    	DefaultTableModel defaultTableModel;
	    	JScrollPane scrollPane; 
	        scrollPane = new JScrollPane();  
	        scrollPane.setSize(600, 400);  
	        //创建一个只有表头的表格模型  
	        defaultTableModel = new DefaultTableModel(new Object[][]{},
            new String[]{"学号", "姓名", "性别","年级","专业","兴趣"});
	        for(int i=0;students[i][0]!=null;i  )
	        {
	        	String[] in=students[i][5].split("\\;");
	        	String k=new String();
	        	try {
	        		int[] a=new int[in.length];
	        		for(int j=0;j<in.length;j  )
	        		{
	        	     a[j] = Integer.parseInt(in[j]);
	        	     if(interest[a[j]]!="-")
	        		k =interest[a[j]] "--";
	        		}
	        	} catch (NumberFormatException e) {
	        	    e.printStackTrace();
	        	}

	        	defaultTableModel.insertRow(i,new Object[]{
                        students[i][0], students[i][1], students[i][2],students[i][3],students[i][4],k,});	        	
	        }
	        
	        //将students中非空元素插入表中 
	        table = new JTable(defaultTableModel);  
	        table.setSize(600, 400);
	        table.setLocation(500, 200); 
	        table.updateUI();
	       JScrollPane jspane=new JScrollPane(table);
	       JFrame jf=new JFrame();
	       jf.setSize(600, 500);
	       jf.setLocation(500, 200); 
	       jf.add("Center",jspane);
	       //jf.add("South",btnPanel);
	       //jf.add(bt2);
	       jf.setVisible(true);
	       

	        
	    }
	    public void chaozuo(String[][] ss)
	    {
        	JTable table;
	    	JButton bt1 = new JButton("修改");
	    	JButton bt2 = new JButton("删除");
	    	JPanel btnPanel = new JPanel(new java.awt.GridLayout(1, 2));
	        btnPanel.add(bt1);
	        btnPanel.add(bt2);
	    	DefaultTableModel defaultTableModel;
	    	JScrollPane scrollPane; 
	        scrollPane = new JScrollPane();  
	        scrollPane.setSize(500, 400);  
	        //创建一个只有表头的表格模型  
	        defaultTableModel = new DefaultTableModel(new Object[][]{},
            new String[]{"学号", "姓名", "性别","年级","专业","兴趣"});
	        for(int i=0;ss[i][0]!=null;i  )
	        {
	        	String[] in=ss[i][5].split("\\;");
	        	String k=new String();
	        	try {
	        		int[] a=new int[in.length];
	        		for(int j=0;j<in.length;j  )
	        		{
	        	     a[j] = Integer.parseInt(in[j]);
	        	     if(interest[a[j]]!="-")
	        		k =interest[a[j]] "--";
	        		}
	        	} catch (NumberFormatException e1) {
	        	    e1.printStackTrace();
	        	}

	        	defaultTableModel.insertRow(i,new Object[]{
                       ss[i][0], ss[i][1], ss[i][2],ss[i][3],ss[i][4],k,});	        	
	        }
	        //将students中非空元素插入表中 
	        table = new JTable(defaultTableModel);  
	        table.setSize(500, 400);
	        table.setLocation(500, 200); 
	        table.updateUI();
	       JScrollPane jspane=new JScrollPane(table);
	       JFrame jf=new JFrame();
	       jf.setSize(600, 500);
	       jf.setLocation(500, 200); 
	       jf.add("Center",jspane);
	       jf.add("South",btnPanel);
	       //jf.add(bt2);
	       jf.setVisible(true);
	       bt1.addActionListener(new ActionListener() {
	            @Override
	            public void actionPerformed(ActionEvent e) {
	            	int n=table.getSelectedRow();
	            	panel1.removeAll();
	    	    	JLabel label1 = new JLabel();
	    	    	label1.setText("学生学号");
	    	    	label1.setSize(300, 30);
	    	    	label1.setLocation(400, 10);   	
	    	    	JButton button0=new JButton("返回");
	    	    	button0.setSize(100, 50);   
	    			button0.setLocation(40,0);
	    			
	    	    	button0.addActionListener(new ActionListener() {
	    	            @Override
	    	            public void actionPerformed(ActionEvent e) {
	    	            	login();
	     
	    	            }
	    	        });
	    	    	JTextField textField1=new JTextField();
	    	    	textField1.setSize(300, 30);
	    	    	textField1.setLocation(400, 50);
	    	    	JLabel label2 = new JLabel();
	    	    	label2.setText("学生姓名");
	    	    	label2.setSize(300, 30);
	    	    	label2.setLocation(400, 110);
	    	    	JTextField textField2=new JTextField();
	    	    	textField2.setSize(300, 30);
	    	    	textField2.setLocation(400, 150);
	    	    	JLabel nianji = new JLabel();
	    	    	nianji.setText("请选择年纪");
	    	    	nianji.setSize(300, 30);
	    	    	nianji.setLocation(400, 210);
	    	    	JComboBox<String> comboBox=new JComboBox<String>();  
	    	        comboBox.addItem("2012");  
	    	        comboBox.addItem("2013");  
	    	        comboBox.addItem("2014");
	    	        comboBox.addItem("2015");
	    	        comboBox.addItem("2016");
	    	        comboBox.addItem("2017");
	    	        comboBox.setSize(100, 40);
	    	        comboBox.setLocation(400, 250);
	    	    	JLabel label3 = new JLabel();
	    	    	label3.setText("学生专业");
	    	    	label3.setSize(300, 30);
	    	    	label3.setLocation(400, 310);
	    	    	JTextField textField3=new JTextField();
	    	    	textField3.setSize(300, 30);
	    	    	textField3.setLocation(400, 350);
	    	    	JLabel label4 = new JLabel();
	    	    	label4.setText("请选择性别");
	    	    	label4.setSize(100, 30);
	    	    	label4.setLocation(350, 380);
	    	    	JRadioButton s1=new JRadioButton("男",true);  
	    	        JRadioButton s2=new JRadioButton("女");
	    	        ButtonGroup bg = new ButtonGroup();  
	    	        bg.add(s1);  
	    	        bg.add(s2);
	    	        JPanel jp1=new JPanel();
	    	        jp1.setOpaque(false);
	    	        jp1.setSize(300, 100);
	    	        jp1.setLocation(450, 380);
	    	        jp1.add(s1);
	    	        jp1.add(s2);
	    	        JCheckBox[] its= new JCheckBox[interest.length];
	    	        JLabel label5=new JLabel();
	    	        label5.setText("请选择兴趣");
	    	    	label5.setSize(100, 30);
	    	    	label5.setLocation(350, 400);
	    	        JPanel jp2=new JPanel();
	    	        jp2.setLocation(450, 430);
	    	        jp2.setSize(300, 150);
	    	        jp2.setOpaque(false);	
	    	        
	    	        for(int i=0;i<interest.length;i  )
	    	        {
	    	        	its[i]=new JCheckBox(interest[i]);
	    	        	jp2.add(its[i],BorderLayout.CENTER);	
	    	        }
	    	        JButton button1=new JButton("确定修改");
	    	    	button1.setSize(100, 50);   
	    			button1.setLocation(400, 580);	
	    			button1.addActionListener(new ActionListener() {
	    	            @Override
	    	            public void actionPerformed(ActionEvent e) {
	    	            	String id,name,sex,year,major,like="";
	    	            	id=textField1.getText();
	    	            	name=textField2.getText();
	    	            	major=textField3.getText();
	    	            	year=comboBox.getSelectedItem().toString();
	    	            	if(s1.isSelected())
	    	            	sex="男";
	    	            	else sex="女";
	    	            	for(int i=0;i<its.length;i  )
	    	            	{
	    	            		if(its[i].isSelected())
	    	            			like =Integer.toString(i) ";";
	    	            	}
	    	            	if(id.equals("")||!id.matches("[0-9] "))
	    	            		JOptionPane.showMessageDialog(null, "学号为空或不是纯数字","修改学生信息",  JOptionPane.ERROR_MESSAGE);
	    	            	else if(name.equals(""))
	    	            	JOptionPane.showMessageDialog(null, "姓名为空","修改学生信息",  JOptionPane.ERROR_MESSAGE);
	    	            	else if(year.equals(""))
	    	            		JOptionPane.showMessageDialog(null, "年级为空","修改学生信息",  JOptionPane.ERROR_MESSAGE);
	    	            	else if(major.equals(""))
	    	            		JOptionPane.showMessageDialog(null, "专业为空", "修改学生信息", JOptionPane.ERROR_MESSAGE);
	    	            	else {
	    	            		String xiugai=new String();
	    	            		for(int m=0;m<5;m  )
	    	            		{
	    	            			xiugai =ss[n][m] "|";
	    	            		}
	    	            		xiugai =ss[n][5];
	    	            		System.out.println(xiugai);
	    	            		wr.change(Integer.parseInt(ss[n][6]),id "|" name "|" sex "|" year "|" major "|" like);
	    	            	
	    	            	JOptionPane.showMessageDialog(null, "修改成功","修改学生信息",  JOptionPane.CLOSED_OPTION);
	    	            	}
	    	            	
	    	            	
	    	            	

	    	            }
	    	        });
	    	    	panel1.add(textField1);
	    	    	panel1.add(textField2);
	    	    	panel1.add(textField3);
	    	    	panel1.add(jp1);
	    	    	panel1.add(jp2);
	    	    	panel1.add(button0);
	    	    	panel1.add(button1);
	    	    	panel1.add(comboBox);
	    	    	panel1.add(label1);
	    	    	panel1.add(label2);
	    	    	panel1.add(label3);
	    	    	panel1.add(label4);
	    	    	panel1.add(label5);
	    	    	panel1.add(nianji);
	    	    	panel1.repaint();
	    	    	panel1.repaint();
	    	    	frame.setVisible(true); 	
	            }
	           
	            
	        });
	       bt2.addActionListener(new ActionListener() {
   	            @Override
   	            public void actionPerformed(ActionEvent e) {
   	            	int n=table.getSelectedRow();
   	            	int k=Integer.parseInt(ss[n][6]);
   	            	wr.delete(k);
   	            	JOptionPane.showMessageDialog(null, "删除成功","修改学生信息",  JOptionPane.CLOSED_OPTION);
  
   	            }
        	
        });
    }
	    
	
}

标签: 数据库 java 学生

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java学生管理系统(入门级,不需要安装数据库,用txt存取的数据)

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