简易java签到程序

痛定思痛。 2024-02-17 14:22 40阅读 0赞

3b. 编写图形化的考勤签到程序。

介绍：采用java swing组件进行编程，其中用到的知识点主要有①、arraylist数组的使用；②txt文本的读取和写入；③字符串的处理；④java的简单GUI编程

源码链接地址：[下载][Link 1]

效果图：

![Image 1][]![SouthEast][]![SouthEast 1][]![SouthEast 2][]

![Image 1][]

源码：

package suanfa.whp;
    
    import java.awt.BorderLayout;
    import java.awt.Color;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
    import java.io.BufferedReader;
    import java.io.File;
    import java.io.FileOutputStream;
    import java.io.FileReader;
    import java.io.IOException;
    import java.io.PrintWriter;
    import java.util.ArrayList;
    import java.util.concurrent.ArrayBlockingQueue;
    import javax.swing.*;
    
    /**
     * 简易签到程序
     * 
     * @author wanghaiping
     * 
     */
    public class check_suanfa implements ActionListener {
    	ArrayList list = new ArrayList(); // 用于取出txt内容的list数组
    	ArrayList list1 = new ArrayList(); // 用于存储内容到txt的list1数组
    	String path; // 选中文件的路劲
    	String information = ""; // 保存未到名单的信息
    	String a[];	//用于临时分割字符使用
    	String b[];// 未到人次;
    	int leng = -3;
    	int count = 0;//未到人次计数
    	JFrame jf;
    	JTextField jtxt1;
    	JTextField jtxt2;
    	JTextField jtxt3;
    	JButton jbtn1;
    	JButton jbtn2;
    	JPanel jp1, jp2, jp3;
    	JComboBox jcb;
    	JTextArea jtarea;
    
    	public void buju() {
    
    		jf = new JFrame("");
    
    		String[] jcb_string = { "计科1111", "计科1112", "计科1113", "计科1114" };
    		jcb = new JComboBox(jcb_string);
    
    		jtarea = new JTextArea(3, 4);
    		jtarea.setBackground(Color.gray);
    		jtarea.setEditable(false);
    
    		jtxt1 = new JTextField(10);
    		jtxt2 = new JTextField(10);
    		jtxt3 = new JTextField(10);
    
    		jp1 = new JPanel();
    		jp2 = new JPanel();
    		jp3 = new JPanel();
    
    		jbtn1 = new JButton("是");
    		jbtn2 = new JButton("否");
    
    		jcb.addActionListener(this);
    		jbtn1.addActionListener(this);
    		jbtn2.addActionListener(this);
    
    		jp1.add(jcb);
    		jp2.add(jtxt1);
    		jp2.add(jtxt2);
    		jp2.add(jtxt3);
    		jp2.add(jbtn1);
    		jp2.add(jbtn2);
    		jp3.add(jtarea);
    
    		jf.add(jp1, BorderLayout.NORTH);
    		jf.add(jp2, BorderLayout.CENTER);
    		jf.add(jp3, BorderLayout.SOUTH);
    
    		jf.setSize(500, 400);
    		jf.setLocation(500, 200);
    		jf.setVisible(true);
    		jf.setDefaultCloseOperation(jf.EXIT_ON_CLOSE);
    
    	}
    
    	// 主函数
    	public static void main(String[] args) {
    		// TODO Auto-generated method stub
    
    		check_suanfa t = new check_suanfa();
    		t.buju();
    	}
    
    	@Override
    	public void actionPerformed(ActionEvent e) {
    		// TODO 自动生成的方法存根
    		if (e.getSource() == jcb) {
    			try{
    			path = "check/" + (String) jcb.getSelectedItem() + ".txt";
    			check_suanfa cs = new check_suanfa();
    			list = cs.read(path);
    			String gets = "";
    			for (int i = 0; i < list.size(); i++) {
    				gets = gets + (String) list.get(i) + " ";
    
    			}
    			String a[] = gets.split(" ");
    
    			for (int j = 0; j < a.length; j++) {
    				list1.add(a[j].toString());
    			}
    			jtxt1.setText(a[0]);
    			jtxt2.setText(a[1]);
    			jtxt3.setText(a[2]);
    			}catch (Exception e1) {
    				JOptionPane.showMessageDialog(null, "学生名单有错误！请更正名单后重启软件！");
    			}
    
    		}
    		if (leng < list1.size() - 3) {
    			if (e.getSource() == jbtn1) {
    				leng = leng + 3;
    				jtxt1.setText((String) list1.get(leng));
    				jtxt2.setText((String) list1.get(leng + 1));
    				jtxt3.setText((String) list1.get(leng + 2));
    				int newlist1 = Integer.parseInt(jtxt3.getText()) + 1;
    				String newlist2 = String.valueOf(newlist1);
    				Object asa = newlist2;
    				list1.set(leng + 2, asa);
    			}
    			if (e.getSource() == jbtn2) {
    				leng = leng + 3;
    				jtxt1.setText((String) list1.get(leng));
    				jtxt2.setText((String) list1.get(leng + 1));
    				jtxt3.setText((String) list1.get(leng + 2));
    				information = information + jtxt2.getText() + " ";
    				System.out.print(information);
    				count++;
    				jtarea.setText("未到人次：" + count + "\r\n" + "本次未到人名单："
    						+ information);
    
    			}
    		} else {
    			JOptionPane.showMessageDialog(null, "签名完成！");
    			check_suanfa cs = new check_suanfa();
    			cs.write(list1, path);
    
    		}
    
    	}
    
    	public void write(ArrayList add_list1, String path) {
    		try {
    			FileOutputStream fou = null;
    			fou = new FileOutputStream(path);// true,设置可追加
    
    			String s = "";
    			for (int i = 0; i < add_list1.size() - 2; i = i + 3) {
    				s = s + (String) add_list1.get(i) + " "
    						+ (String) add_list1.get(i + 1) + " "
    						+ (String) add_list1.get(i + 2) + "\r\n";
    
    			}
    			PrintWriter pw = new PrintWriter(fou);
    			pw.write(s);
    			pw.close();
    			fou.close();
    		} catch (Exception e) {
    			e.printStackTrace();
    		}
    	}
    
    	public ArrayList read(String class_name) {
    		ArrayList list = new ArrayList();
    
    		BufferedReader input = null;
    		try {
    			FileReader in = new FileReader(class_name);
    			input = new BufferedReader(in);
    			String ss;
    			try {
    				while ((ss = input.readLine()) != null) {
    					String[] s = ss.split("\r\n");
    					for (int i = 0; i < s.length; i++) {
    						list.add(s[i].toString()); // 将String s中的内容添加到动态数组中
    					}
    				}
    			} catch (IOException e) {
    				// TODO 自动生成的 catch 块
    				e.printStackTrace();
    			}
    			in.close();
    			input.close();
    		} catch (Exception e) {
    			// TODO 自动生成的 catch 块
    			e.printStackTrace();
    		}
    
    		return list;
    	}
    
    }

[Link 1]: http://pan.baidu.com/s/1pJ0iDIV
[Image 1]: 
[SouthEast]: https://img-blog.csdn.net/20140311151428328?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvd2FuZ2hhaXBpbmcxOTkz/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast
[SouthEast 1]: https://img-blog.csdn.net/20140311151504937?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvd2FuZ2hhaXBpbmcxOTkz/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast
[SouthEast 2]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/30/46ddbf82230544bc979f97f4f6516fca.png