import javax.swing.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.InputStreamReader;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import javax.swing.filechooser.FileNameExtensionFilter;
class Interface {
JFrame jf = new JFrame("From：shish");
JPanel jp1 = new JPanel(), jp2 = new JPanel(), jpinit = new JPanel(), jpAbout = new JPanel();
JPanel jptitle = new JPanel();
Box vbox1 = Box.createVerticalBox(); // 底下编辑垂直分布
Box vboxmain = Box.createVerticalBox(); // 主要展示面垂直分布
Menu m = new Menu(); // 菜单
editBottom eb = new editBottom(); // 底部编辑框
Data d = new Data(); // 数据处理
File nfile = null; // 保存地址
File rfile = null; // 读取文件地址
public int now_number = 0; // 系统中学生数量
public int now_sum = 0; // 是否展示总分
public int now_avg = 0; // 是否展示平均分
public int new_file = 0; // 是否存在新建的页面
public int fenxi = 0; // 是否展示数据分析
public int now_view = 0; // 是否为视图状态
public int now_save = 0; // 是否保存
// 主页
public void initInterface() {
vboxmain.removeAll();
JTextArea jta = new JTextArea();
jta.setBackground(Color.white);
jta.setText("\n\n\n\n " +
" 欢 迎 \n " +
" 使 用 学 生 管 理 系 统 !\n\n\n " +
" 独学而无友┗( ▔, ▔ )┛则孤陋寡闻 " +
" \n\t\t ღゝ◡╹)ノ♡\n\n\n\n\n\n\n");
jta.setFont(new Font("华文行楷", Font.PLAIN, 34));
jta.setEditable(false);
jpinit.add(jta, "Center");
vboxmain.add(jpinit);
vboxmain.repaint();
jf.add(vboxmain);
}
// 菜单关于界面
public void aboutInterface() {
JTextArea jta = new JTextArea();
jta.setBackground(Color.white);
jta.setText("\n\n作者：shish " +
" " +
"\n博客：https://www.cnblogs.com/shish\n" +
"GitHub：https://github.com/shishenhao\n" +
"关于作者：超级无敌的菜鸡\n" +
"声援作者：您的鼓励是作者的最大动力！\n\n\n\n\n\n\n\n\n\n\n");
jta.setFont(new Font("华文行楷", Font.PLAIN, 32));
jta.setEditable(false);
jpAbout.add(jta, "Center");
vboxmain.add(jpAbout);
jf.add(vboxmain);
}
// 新建一个窗口的界面
public void newCreate() {
jptitle.removeAll();
JTextArea jta = new JTextArea(1, 70);
jta.setBackground(Color.white);
jta.setEditable(false);
jta.setFont(new Font("华文行楷", Font.PLAIN, 28));
jta.setText(" \t\t 学 生 成 绩 管 理 系 统 ");
JTextArea jtaa = new JTextArea(1, 70);
jtaa.setBackground(Color.LIGHT_GRAY);
jtaa.setFont(new Font("微软雅黑", Font.PLAIN, 22));
jtaa.setEditable(false);
jtaa.setText("\t 编号 | 学号 | 姓名 | 课程1 | 课程2 | 总分 ");
vboxmain.removeAll();
jptitle.add(jta);
jptitle.add(jtaa);
vboxmain.add(jptitle);
vboxmain.repaint();
jf.setVisible(true);
}
// 展现数据
public void showData() {
JTextArea[] jtas = new JTextArea[20];
vboxmain.removeAll();
jptitle.removeAll();
JTextArea jta = new JTextArea(1, 70);
jta.setBackground(Color.white);
jta.setEditable(false);
jta.setFont(new Font("华文行楷", Font.PLAIN, 28));
jta.setText(" \t\t 学 生 成 绩 管 理 系 统 ");
JTextArea jtaa = new JTextArea(1, 70);
jtaa.setBackground(Color.LIGHT_GRAY);
jtaa.setFont(new Font("微软雅黑", Font.PLAIN, 22));
jtaa.setEditable(false);
jtaa.setText("\t 编号 | 学号 | 姓名 | 课程1 | 课程2 | 总分 ");
jptitle.add(jta);
jptitle.add(jtaa);
if (now_number <= 0) {
vboxmain.add(jptitle);
vboxmain.repaint();
jf.setVisible(true);
return;
}
for (int i = 1; i <= now_number; i++) {
jtas[i] = new JTextArea();
jtas[i].setBackground(Color.white);
if (now_sum == 0) {
jtas[i].setText(String.format(" %d %s %s%25.1f%25.1f " +
" ", i, d.zhuyao[i].id, d.zhuyao[i].name, d.zhuyao[i].grade[1], d.zhuyao[i].grade[2]));
} else if (now_sum == 1) {
jtas[i].setText(String.format(" %d %s %s%25.1f%25.1f%24.2f " +
" ", i, d.zhuyao[i].id, d.zhuyao[i].name, d.zhuyao[i].grade[1], d.zhuyao[i].grade[2], d.zhuyao[i].grade[3]));
}
jtas[i].setFont(new Font("华文行楷", Font.PLAIN, 20));
jtas[i].setEditable(false);
jptitle.add(jtas[i]);
}
if (now_avg == 1) {
JTextArea jav = new JTextArea();
jav.setBackground(Color.white);
jav.setFont(new Font("华文行楷", Font.PLAIN, 20));
jav.setEditable(false);
if (now_sum == 1) {
jav.setText(String.format(" 平均分 " +
" %25.2f%25.2f%23.2f " +
" ", d.avg[1], d.avg[2], d.avg[3]));
} else {
jav.setText(String.format(" 平均分 %25.2f%25.2f " +
" ", d.avg[1], d.avg[2]));
}
jptitle.add(jav);
}
jptitle.add(createEmptyJTA());
if (fenxi == 1) {
JTextArea jfx = new JTextArea();
jfx.setBackground(Color.white);
jfx.setFont(new Font("华文行楷", Font.PLAIN, 20));
jfx.setEditable(false);
d.analysis();
jfx.setText(String.format(" 课程1成绩分析：优秀人数(>=85)为 %d 占比 %.2f, " +
"良好人数(>=70)为 %d 占比 %.2f; " +
" \n " +
" 及格人数(>=60)为 %d 占比 %.2f, 不及格人数(<60)为 %d " +
"占比 %.2f。", d.numYouxiu[0], d.youxiuB[0], d.numLianghao[0], d.lianghaoB[0],
d.numJige[0], d.jigeB[0], d.numBujige[0], d.bujigeB[0]));
jfx.append(String.format("\n 课程2成绩分析：优秀人数(>=85)为 %d 占比 %.2f, " +
"良好人数(>=70)为 %d 占比 %.2f; " +
" \n " +
" 及格人数(>=60)为 %d 占比 %.2f, 不及格人数(<60)为 %d " +
"占比 %.2f。", d.numYouxiu[1], d.youxiuB[1], d.numLianghao[1], d.lianghaoB[1],
d.numJige[1], d.jigeB[1], d.numBujige[1], d.bujigeB[1]));
jptitle.add(jfx);
jptitle.add(createEmptyJTA());
}
vboxmain.add(jptitle);
vboxmain.repaint();
jf.setVisible(true);
}
// 展现视图
public void showView(){
JTextArea[] jtas = new JTextArea[20];
vboxmain.removeAll();
jptitle.removeAll();
JTextArea jta = new JTextArea(1, 70);
jta.setBackground(Color.white);
jta.setEditable(false);
jta.setFont(new Font("华文行楷", Font.PLAIN, 28));
jta.setText(" \t\t 学 生 成 绩 管 理 系 统 ");
JTextArea jtaa = new JTextArea(1, 70);
jtaa.setBackground(Color.LIGHT_GRAY);
jtaa.setFont(new Font("微软雅黑", Font.PLAIN, 22));
jtaa.setEditable(false);
jtaa.setText("\t 编号 | 学号 | 姓名 | 课程1 | 课程2 | 总分 ");
jptitle.add(jta);
jptitle.add(jtaa);
if (now_number <= 0) {
vboxmain.add(jptitle);
vboxmain.repaint();
jf.setVisible(true);
return;
}
for (int i = 1; i <= now_number; i++) {
jtas[i] = new JTextArea();
jtas[i].setBackground(Color.white);
if (now_sum == 0) {
jtas[i].setText(String.format(" %d %s %s%25.1f%25.1f " +
" ", i, d.vDate[i].id, d.vDate[i].name, d.vDate[i].grade[1], d.vDate[i].grade[2]));
} else if (now_sum == 1) {
jtas[i].setText(String.format(" %d %s %s%25.1f%25.1f%24.2f " +
" ", i, d.vDate[i].id, d.vDate[i].name, d.vDate[i].grade[1], d.vDate[i].grade[2], d.vDate[i].grade[3]));
}
jtas[i].setFont(new Font("华文行楷", Font.PLAIN, 20));
jtas[i].setEditable(false);
jptitle.add(jtas[i]);
}
if (now_avg == 1) {
JTextArea jav = new JTextArea();
jav.setBackground(Color.white);
jav.setFont(new Font("华文行楷", Font.PLAIN, 20));
jav.setEditable(false);
if (now_sum == 1) {
jav.setText(String.format(" 平均分 " +
" %25.2f%25.2f%23.2f " +
" ", d.avg[1], d.avg[2], d.avg[3]));
} else {
jav.setText(String.format(" 平均分 %25.2f%25.2f " +
" ", d.avg[1], d.avg[2]));
}
jptitle.add(jav);
}
jptitle.add(createEmptyJTA());
JTextArea jzhu = new JTextArea();
jzhu.setFont(new Font("仿宋", Font.PLAIN, 18));
jzhu.setEditable(false);
jzhu.setText(" 注：当前为视图模式，无法进行编辑，返回需要在查看按当前窗口!!!" +
" ");
jptitle.add(jzhu);
vboxmain.add(jptitle);
vboxmain.repaint();
jf.setVisible(true);
}
// 展示界面
public void showFrame() {
Font f = new Font("微软雅黑", Font.PLAIN, 16);
UIManager.put("Menu.font", f);
UIManager.put("MenuItem.font", f);
UIManager.put("CheckBoxMenuItem.font", f);
UIManager.put("ComboBox.font", f);
UIManager.put("Label.font", f);
UIManager.put("Button.font", f);
UIManager.put("FileChooser.font", f);
jf.setSize(1000, 720); //大小
jf.setAlwaysOnTop(true);
jf.setResizable(false);//不可拖动
jf.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
jf.setBackground(Color.white);
initInterface();
eb.init();
m.init();
jf.setVisible(true);
}
// 添加特定的空行
public JTextArea createEmptyJTA() {
JTextArea jkongbai = new JTextArea();
jkongbai.setBackground(Color.LIGHT_GRAY);
jkongbai.setEditable(false);
jkongbai.setFont(new Font("宋体", Font.PLAIN, 4));
jkongbai.setText("\t " +
"\t " +
"\t " +
"\t " +
"\t ");
return jkongbai;
}
// 菜单
class Menu {
JMenuBar bar = new JMenuBar();
JMenu file, edit, statistic, about, sort_asc, sort_desc, view;
JMenuItem file_new, file_open, file_exit, file_save, file_lsave, file_guanbi, st_result, zuozhe, zhuye;
JMenuItem s_sum, s_avg, chexiao, qinglin, nowView;
JMenuItem course11, coures21, total1, course12, coures22, total2;
JCheckBoxMenuItem edit_show;
public int flag = 0;// 出现编辑框的判断信号
// 初始化
public void init() {
// 第一层菜单
file = new JMenu("文件 ");
edit = new JMenu(" 编辑 ");
statistic = new JMenu(" 统计 ");
about = new JMenu(" 关于 ");
view = new JMenu(" 查看 ");
// 添加菜单
bar.add(file);
bar.add(edit);
bar.add(view);
bar.add(statistic);
bar.add(about);
// 设置文件菜单
file_new = new JMenuItem(" 新建 ");
file_open = new JMenuItem(" 导入 ");
file_exit = new JMenuItem(" 退出 ");
file_lsave = new JMenuItem(" 另存为 ");
file_save = new JMenuItem(" 保存 ");
file_guanbi = new JMenuItem(" 关闭当前窗口 ");
// 添加文佳中菜单
file.add(file_new);
file.add(file_open);
file.add(file_save);
file.add(file_lsave);
file.addSeparator();
file.add(file_guanbi);
file.add(file_exit);
// 添加监视器
file_exit.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == file_exit) {
if (new_file == 1) {
int op = JOptionPane.showConfirmDialog(jf, " 退出是否进行保存！", "提示", JOptionPane.YES_NO_CANCEL_OPTION);
if (op == JOptionPane.YES_OPTION) {
if (now_save != 1 && new_file == 1) {
if (nfile == null) {
showFileSaveDialog(jf, nfile);
}
if (nfile != null) {
writeText(nfile);
System.exit(0);
}
}
} else if (op == JOptionPane.NO_OPTION)
System.exit(0);
}
else if(new_file == 0){
int jop = JOptionPane.showConfirmDialog(jf, "是否退出系统！", "提示", JOptionPane.YES_NO_OPTION);
if(jop == JOptionPane.YES_OPTION){
System.exit(0);
}else
return;
}
}
}
}); // 退出
file_new.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == file_new) {
if (new_file == 1) {
JOptionPane.showMessageDialog(jf, "已存在窗口！", "提示", JOptionPane.WARNING_MESSAGE);
return;
}
new_file = 1; // 表示新建窗口成功
newCreate();
edit_show.setSelected(true); // 出现编辑窗口
}
}
}); // 新建
file_save.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == file_save) {
if (new_file == 1) {
if (nfile == null)
showFileSaveDialog(jf, nfile);
if (nfile != null) {
d.sort(3, 2);
writeText(nfile);
showData();
now_save = 1;
}
}
}
}
}); // 保存
file_lsave.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == file_lsave) {
File old = null;
if(nfile != null) {
old = new File(nfile.getPath());
}
if (new_file == 1) {
showFileSaveDialog(jf, nfile);
if(old != null) {
if (nfile.getPath() != old.getPath()) {
d.sort(3, 2);
writeText(nfile);
showData();
now_save = 1;
}
}else{
if (nfile != null) {
d.sort(3, 2);
writeText(nfile);
showData();
now_save = 1;
}
}
}
}
}
}); // 另存为
file_open.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == file_open) {
if (new_file == 1) {
JOptionPane.showMessageDialog(jf, "已有打开窗口，请先关闭窗口！", "提示", JOptionPane.WARNING_MESSAGE);
return;
}
showFileOpenDialog(jf);
if(rfile != null) {
new_file = 1;
readText(rfile);
nfile = new File(rfile.getName());
d.calculate();
d.analysis();
showData();
}
return;
}
}
}); // 导入
file_guanbi.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == file_guanbi) {
if(now_number != 0) {
if (now_save == 0) {
if (new_file == 1) {
if (nfile == null && rfile != null) {
nfile = rfile;
} else if (nfile == null)
showFileSaveDialog(jf, nfile);
if (nfile != null) {
d.sort(3, 2);
writeText(nfile);
}
}
}
while (nfile == null && new_file == 1) {
int op = JOptionPane.showConfirmDialog(jf, "是否不进行保存？", "提示", JOptionPane.YES_NO_CANCEL_OPTION);
if (op == JOptionPane.YES_OPTION) {
break;
} else if (op == JOptionPane.NO_OPTION) {
showFileSaveDialog(jf, nfile);
if (nfile != null) {
d.sort(3, 2);
writeText(nfile);
}
} else return;
}
}
new_file = 0;
now_save = 0;
rfile = null;
nfile = null;
now_number = 0;
now_view = 0;
initInterface();
edit_show.setSelected(false);
return;
}
}
}); // 关闭窗口
// 设置编辑菜单
edit_show = new JCheckBoxMenuItem(" 编辑窗口 ");
chexiao = new JMenuItem(" 撤销 ");
// qinglin = new JMenuItem(" 清零 ");
// 添加编辑菜单
edit.add(chexiao);
// edit.add(qinglin);
edit.addSeparator();
edit.add(edit_show);
// 添加监视器
edit_show.addChangeListener(new ChangeListener() {
@Override
public void stateChanged(ChangeEvent e) {
if (e.getSource() == edit_show) {
if (flag == 0) {
vbox1.add(jp1);
vbox1.add(jp2);
vbox1.add(Box.createVerticalStrut(5));
jf.add(vbox1, "South");
} else {
vbox1.removeAll();
vbox1.repaint();
}
flag = (flag + 1) % 2;
jf.setVisible(true);
}
}
}); // 编辑窗口
chexiao.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == chexiao) {
if (!d.revocation()) { // 撤销判断
JOptionPane.showMessageDialog(jf, "无撤销内容！", "提示", JOptionPane.WARNING_MESSAGE);
return;
}
showData();
now_save = 0;
}
}
}); // 撤销
// 编辑查看菜单
nowView = new JMenuItem(" 当前窗口 ");
// 添加查看菜单
view.add(nowView);
// 添加监视器
nowView.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
now_view = 0;
if (new_file == 0) {
return;
}
if (now_number != 0) {
vboxmain.removeAll();
showData();
vboxmain.repaint();
jf.setVisible(true);
}
}
}); // 显示当前处理数据的页面
// 编辑统计菜单
sort_asc = new JMenu(" 升序排序 ");
sort_desc = new JMenu(" 降序排序 ");
st_result = new JCheckBoxMenuItem(" 成绩分析 ");
s_sum = new JCheckBoxMenuItem(" 总分 ");
s_avg = new JCheckBoxMenuItem(" 平均分 ");
st_result.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == st_result) {
fenxi = (fenxi + 1) % 2;
if (new_file == 0) initInterface();
else if (now_number == 0 && new_file != 0) newCreate();
else if(now_view == 1) showView();
else showData();
}
}
}); // 成绩分析
s_sum.addChangeListener(new ChangeListener() {
@Override
public void stateChanged(ChangeEvent e) {
if (e.getSource() == s_sum) {
now_sum = (now_sum + 1) % 2;
if (new_file == 0) initInterface();
else if (now_number == 0) newCreate();
else if(now_view == 1) showView();
else showData();
}
}
}); // 总分
s_avg.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == s_avg) {
now_avg = (now_avg + 1) % 2;
if (new_file == 0) initInterface();
else if (now_number == 0) newCreate();
else if(now_view == 1) showView();
else showData();
}
}
}); // 平均分
// 添加统计菜单
statistic.add(s_sum);
statistic.add(s_avg);
statistic.add(st_result);
statistic.addSeparator();
statistic.add(sort_asc);
statistic.add(sort_desc);
course11 = new JMenuItem(" 课程1 ");
coures21 = new JMenuItem(" 课程2 ");
total1 = new JMenuItem(" 总分 ");
course12 = new JMenuItem(" 课程1 ");
coures22 = new JMenuItem(" 课程2 ");
total2 = new JMenuItem(" 总分 ");
// 添加统计菜单的子菜单
sort_asc.add(course11);
sort_asc.add(coures21);
sort_asc.add(total1);
sort_desc.add(course12);
sort_desc.add(coures22);
sort_desc.add(total2);
// 添加监视器
course11.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if(e.getSource() == course11){
if(new_file == 1 && now_number > 0) {
now_view = 1;
d.sort(1, 2);
edit_show.setSelected(false);
showView();
jf.setVisible(true);
}
}
}
}); // 升序，按照课程1
coures21.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if(e.getSource() == coures21){
if(new_file == 1 && now_number > 0) {
now_view = 1;
edit_show.setSelected(false);
d.sort(2, 2);
showView();
jf.setVisible(true);
}
}
}
}); // 升序，按照课程2
total1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if(e.getSource() == total1){
if(new_file == 1 && now_number > 0) {
now_view = 1;
edit_show.setSelected(false);
d.sort(3, 2);
s_sum.setSelected(true);
showView();
jf.setVisible(true);
}
}
}
}); // 升序，按照总分
course12.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if(e.getSource() == course12){
if(new_file == 1 && now_number > 0) {
now_view = 1;
edit_show.setSelected(false);
d.sort(1, 1);
showView();
jf.setVisible(true);
}
}
}
}); // 降序，按照课程1
coures22.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if(e.getSource() == coures22){
if(new_file == 1 && now_number > 0) {
now_view = 1;
edit_show.setSelected(false);
d.sort(2, 1);
showView();
jf.setVisible(true);
}
}
}
}); // 降序，按照课程2
total2.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if(e.getSource() == total2){
if(new_file == 1 && now_number > 0) {
now_view = 1;
edit_show.setSelected(false);
s_sum.setSelected(true);
d.sort(3, 1);
showView();
jf.setVisible(true);
}
}
}
}); // 降序，按照总分
// 编辑关于菜单
zuozhe = new JMenuItem(" 作者 ");
zhuye = new JMenuItem(" 主页 ");
about.add(zhuye);
about.add(zuozhe);
zhuye.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
vboxmain.removeAll();
initInterface();
vboxmain.repaint();
edit_show.setSelected(false);
jf.setVisible(true);
}
}); // 作者
zuozhe.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == zuozhe) {
vboxmain.removeAll();
aboutInterface();
vboxmain.repaint();
edit_show.setSelected(false);
jf.setVisible(true);
}
}
}); // 主页
// 展示
jf.setJMenuBar(bar);
}
// 导入界面
public void showFileOpenDialog(Component parent) {
// 创建一个默认的文件选取器
JFileChooser fileChooser = new JFileChooser();
// 设置默认显示的文件夹为当前文件夹
fileChooser.setCurrentDirectory(new File("."));
// 设置文件选择的模式（只选文件、只选文件夹、文件和文件均可选）
fileChooser.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
// 设置是否允许多选
fileChooser.setMultiSelectionEnabled(false);
// 添加可用的文件过滤器（FileNameExtensionFilter 的第一个参数是描述, 后面是需要过滤的文件扩展名 可变参数）
fileChooser.addChoosableFileFilter(new FileNameExtensionFilter("zip(*.zip, *.rar)", "txt", "zip", "rar"));
// 设置默认使用的文件过滤器
fileChooser.setFileFilter(new FileNameExtensionFilter("text(*.txt)", "txt"));
// 打开文件选择框（线程将被阻塞, 直到选择框被关闭）
int result = fileChooser.showOpenDialog(parent);
if (result == JFileChooser.APPROVE_OPTION) {
// 如果点击了"确定", 则获取选择的文件路径
rfile = fileChooser.getSelectedFile();
System.out.println(rfile);
}
}
// 保存界面
public void showFileSaveDialog(Component parent, File old) {
JFileChooser fileChooser = new JFileChooser();
// 设置打开文件选择框后默认输入的文件名
fileChooser.setSelectedFile(new File("sort.txt"));
while (true) {
// 打开文件选择框（线程将被阻塞, 直到选择框被关闭）
int result = fileChooser.showSaveDialog(parent);
if (result == JFileChooser.APPROVE_OPTION) {
// 如果点击了"保存"
nfile = fileChooser.getSelectedFile();
}
if(old != null) {
if (nfile.getPath() != old.getPath()) {
if (!validateFileName(nfile.getName())) {
JOptionPane.showMessageDialog(jf, "文件名不能包含下列任何字符之一：\n \\ / : * ? \" <《》 > |", "提示", JOptionPane.WARNING_MESSAGE);
if (old != null) nfile = new File(old.getName());
else nfile = null;
result = 0;
} else break;
} else break;
}else{
if (nfile != old) {
if (!validateFileName(nfile.getName())) {
JOptionPane.showMessageDialog(jf, "文件名不能包含下列任何字符之一：\n \\ / : * ? \" <《》 > |", "提示", JOptionPane.WARNING_MESSAGE);
if (old != null) nfile = new File(old.getName());
else nfile = null;
result = 0;
} else break;
} else break;
}
}
}
// 写文件
public void writeText(File writeName) {
try {
writeName.createNewFile(); // 创建新文件,有同名的文件的话直接覆盖
try (FileWriter writer = new FileWriter(writeName);
BufferedWriter out = new BufferedWriter(writer)
) {
out.write("编号 学号 姓名 课程1成绩 课程2成绩 总分\n");
for (int i = 1; i <= now_number; i++) {
out.write(String.format("%d %s %s%16.1f%16.1f%16.2f\n",
i, d.vDate[i].id, d.vDate[i].name, d.vDate[i].grade[1], d.vDate[i].grade[2], d.vDate[i].grade[3]));
}
out.write(String.format("平均分 %16.2f%16.2f%14.2f", d.avg[1], d.avg[2], d.avg[3]));
}
} catch (IOException e) {
e.printStackTrace();
}
System.out.println("数据写入成功！");
}
// 读文件
public void readText(File readName) {
if (readName == null)
return;
int index = 0;
try {
InputStreamReader reader = new InputStreamReader(new FileInputStream(readName)); // 建立一个输入流对象reader
BufferedReader br = new BufferedReader(reader); // 建立一个对象，它把文件内容转成计算机能读懂的语言
String str = "", next = "";
str = br.readLine(); // 去掉开头
str = br.readLine();
next = br.readLine();
while (next != null) { // 不读最后一行
String[] buff = str.trim().split("\\s+");
d.zhuyao[++index] = new Student(buff[1], buff[2], Double.parseDouble(buff[3]), Double.parseDouble(buff[4]));
now_number++;
str = new String(next);
next = br.readLine(); // 一次读入一行数据
}
} catch (Exception e) {
e.printStackTrace();
}
}
// 保存文件名限制
public boolean validateFileName(String name) {
if (name.indexOf('\\') != -1 || name.indexOf('/') != -1 ||
name.indexOf(':') != -1 || name.indexOf('*') != -1 ||
name.indexOf('?') != -1 || name.indexOf('"') != -1 ||
name.indexOf('<') != -1 || name.indexOf('>') != -1 ||
name.indexOf('|') != -1 || name.indexOf('《') != -1 ||
name.indexOf('》') != -1 || name.indexOf('？') != -1) {
return false;
} else {
return true;
}
}
}
// 底层编辑窗口
class editBottom {
JTextField jtf1, jtf2, jtf3, jtf4, jtf5;
JComboBox jcb1;
JButton jb1, jb2, jb3;
// 初始化
public void init() {
// 生成文本框
jtf1 = new JTextField(8);
jtf2 = new JTextField(8);
jtf3 = new JTextField(6);
jtf4 = new JTextField(6);
jtf5 = new JTextField(6);
// 生成下拉框
String s[] = {" 修改 ", " 增加 ", " 删除 "};
jcb1 = new JComboBox(s);
// 添加
jp1.add(jcb1);
jp1.add(new JLabel(" 编号 "));
jp1.add(jtf5);
jp1.add(new JLabel(" 学号: "));
jp1.add(jtf1);
jp1.add(new JLabel(" 姓名: "));
jp1.add(jtf2);
jp1.add(new JLabel(" 课程1成绩: "));
jp1.add(jtf3);
jp1.add(new JLabel(" 课程2成绩: "));
jp1.add(jtf4);
// 生成按钮
jb1 = new JButton(" 确定 ");
jb2 = new JButton(" 清除 ");
jb3 = new JButton(" 例子 ");
jp2.add(jb3);
jp2.add(new JLabel(" "));
jp2.add(jb2);
jp2.add(new JLabel(" "));
jp2.add(jb1);
// 监听器
jb1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == jb1) {
if (now_view == 0) {
if (jcb1.getSelectedItem() == " 修改 ") {
try {
int p = Integer.parseInt(jtf5.getText());
if (p > now_number) {
JOptionPane.showMessageDialog(jf, "不存在该编号！", "提示", JOptionPane.WARNING_MESSAGE);
jtf5.setText("");
return;
}
if (p >= 10) {
JOptionPane.showMessageDialog(jf, "暂时不支持编号10以上的数据！", "提示", JOptionPane.WARNING_MESSAGE);
jtf5.setText("");
return;
}
if (!jtf3.getText().equals("")) {
if (Double.parseDouble(jtf3.getText()) < 0 || Double.parseDouble(jtf3.getText()) > 100) {
JOptionPane.showMessageDialog(jf, "课程1输入的成绩大于100(小于0)！", "提示", JOptionPane.WARNING_MESSAGE);
jtf3.setText("");
return;
}
}
if (!jtf4.getText().equals("")) {
if (Double.parseDouble(jtf4.getText()) < 0 || Double.parseDouble(jtf4.getText()) > 100) {
JOptionPane.showMessageDialog(jf, "课程2输入的成绩大于100(小于0)！", "提示", JOptionPane.WARNING_MESSAGE);
jtf4.setText("");
return;
}
}
if(jtf4.getText().equals("") && jtf1.getText().equals("") && jtf2.getText().equals("") && jtf3.getText().equals("")){
JOptionPane.showMessageDialog(jf, "请输入修改数据！", "提示", JOptionPane.WARNING_MESSAGE);
return;
}
d.record(1, p);
if (!jtf3.getText().equals("")) d.zhuyao[p].grade[1] = Double.parseDouble(jtf3.getText());
if (!jtf4.getText().equals("")) d.zhuyao[p].grade[2] = Double.parseDouble(jtf4.getText());
if (!jtf2.getText().equals("")) d.zhuyao[p].name = new StringBuffer(jtf2.getText());
if (!jtf1.getText().equals("")) d.zhuyao[p].id = new StringBuffer(jtf1.getText());
d.calculate();
d.analysis();
now_save = 0;
showData();
jtf1.setText("");
jtf2.setText("");
jtf3.setText("");
jtf4.setText("");
jtf5.setText("");
} catch (Exception d) {
JOptionPane.showMessageDialog(jf, "输入有误！请重新输入！", "提示", JOptionPane.WARNING_MESSAGE);
jtf3.setText("");
jtf4.setText("");
jtf5.setText("");
return;
}
} else if (jcb1.getSelectedItem() == " 增加 ") {
try {
if (now_number + 1 >= 10) {
JOptionPane.showMessageDialog(jf, "暂时不支持编号10以上的数据！", "提示", JOptionPane.WARNING_MESSAGE);
return;
}
if (jtf1.getText().equals("")) {
JOptionPane.showMessageDialog(jf, "请输入学生学号！", "提示", JOptionPane.WARNING_MESSAGE);
return;
}
if (jtf2.getText().equals("")) {
JOptionPane.showMessageDialog(jf, "请输入学生姓名！", "提示", JOptionPane.WARNING_MESSAGE);
return;
}
if (jtf3.getText().equals("")) {
JOptionPane.showMessageDialog(jf, "请输入课程1的成绩！", "提示", JOptionPane.WARNING_MESSAGE);
return;
} else if (!jtf3.getText().equals("")) {
if (Double.parseDouble(jtf3.getText()) < 0 || Double.parseDouble(jtf3.getText()) > 100) {
JOptionPane.showMessageDialog(jf, "课程1输入的成绩大于100(小于0)！", "提示", JOptionPane.WARNING_MESSAGE);
jtf3.setText("");
return;
}
}
if (jtf4.getText().equals("")) {
JOptionPane.showMessageDialog(jf, "请输入课程2的成绩！", "提示", JOptionPane.WARNING_MESSAGE);
return;
} else if (!jtf4.getText().equals("")) {
if (Double.parseDouble(jtf4.getText()) < 0 || Double.parseDouble(jtf4.getText()) > 100) {
JOptionPane.showMessageDialog(jf, "课程2输入的成绩大于100(小于0)！", "提示", JOptionPane.WARNING_MESSAGE);
jtf4.setText("");
return;
}
}
now_number++;
d.record(2, now_number);
if (!jtf3.getText().equals(""))
d.zhuyao[now_number].grade[1] = Double.parseDouble(jtf3.getText());
else {
JOptionPane.showMessageDialog(jf, "请输入课程1的成绩", "提示", JOptionPane.WARNING_MESSAGE);
return;
}
if (!jtf4.getText().equals(""))
d.zhuyao[now_number].grade[2] = Double.parseDouble(jtf4.getText());
else {
JOptionPane.showMessageDialog(jf, "请输入课程2的成绩", "提示", JOptionPane.WARNING_MESSAGE);
return;
}
if (!jtf2.getText().equals(""))
d.zhuyao[now_number].name = new StringBuffer(jtf2.getText());
else {
JOptionPane.showMessageDialog(jf, "请输入学生姓名", "提示", JOptionPane.WARNING_MESSAGE);
return;
}
if (!jtf1.getText().equals(""))
d.zhuyao[now_number].id = new StringBuffer(jtf1.getText());
else {
JOptionPane.showMessageDialog(jf, "请输入学生学号", "提示", JOptionPane.WARNING_MESSAGE);
return;
}
d.calculate();
d.analysis();
now_save = 0;
showData();
jtf1.setText("");
jtf2.setText("");
jtf3.setText("");
jtf4.setText("");
jtf5.setText("");
}catch (Exception d){
JOptionPane.showMessageDialog(jf, "输入有误！请重新输入！", "提示", JOptionPane.WARNING_MESSAGE);
jtf3.setText("");
jtf4.setText("");
jtf5.setText("");
return;
}
} else if (jcb1.getSelectedItem() == " 删除 ") {
try {
int p = Integer.parseInt(jtf5.getText());
if (p > now_number || p <= 0) {
JOptionPane.showMessageDialog(jf, "不存在该编号！", "提示", JOptionPane.WARNING_MESSAGE);
jtf5.setText("");
return;
}
d.record(3, p);
d.delete(p);
now_save = 0;
if (now_number == 0) newCreate();
else showData();
} catch (Exception d) {
JOptionPane.showMessageDialog(jf, "输入有误！请重新输入！", "提示", JOptionPane.WARNING_MESSAGE);
jtf3.setText("");
jtf4.setText("");
jtf5.setText("");
return;
}
}
} else if (now_view == 1) {
JOptionPane.showMessageDialog(jf, "视图模式下无法编辑数据！", "提示", JOptionPane.WARNING_MESSAGE);
return;
}
}
}
});// 确定
jb2.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == jb2) {
jtf1.setText("");
jtf2.setText("");
jtf3.setText("");
jtf4.setText("");
}
}
});// 清除
jb3.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == jb3) {
int op = JOptionPane.showConfirmDialog(jf, "是否使用例子覆盖原有数据？", "提示", JOptionPane.YES_NO_OPTION);
if (op == JOptionPane.YES_OPTION) {
d.oneExample();
now_save = 0;
showData();
}
}
}
});// 例子
}
}
// 数据类
class Student {
public StringBuffer id;
public StringBuffer name;
public double[] grade = new double[4];
Student() {
}
Student(String id, String name, double grade1, double grade2) {
this.id = new StringBuffer(id);
this.name = new StringBuffer(name);
this.grade[1] = grade1;
this.grade[2] = grade2;
this.grade[3] = grade1 + grade2;
}
Student(Student s) {
this.id = new StringBuffer(s.id.toString());
this.name = new StringBuffer(s.name.toString());
this.grade[1] = s.grade[1];
this.grade[2] = s.grade[2];
this.grade[3] = s.grade[1] + s.grade[2];
}
public String toString(){
return id + " " + name + " " + grade[1] + " " + grade[2]+ " " + grade[3];
}
}
// 数据处理
class Data {
// 主要数据
Student[] zhuyao = new Student[20];
public double avg[] = new double[4];
public int[] numYouxiu, numLianghao, numJige, numBujige;
public double[] youxiuB, lianghaoB, jigeB, bujigeB;
// 建立视图的数据
Student[] vDate = new Student[20];
// 撤销记录数据
Student[] rData = new Student[100];
public int now_r = 0; // 记录数
public int[] rcaozuo = new int[100];
public int[] bianhao = new int[100];
// 例子
public void oneExample() {
now_number = 7;
zhuyao[1] = new Student("2018211001", "张铁三", 67, 78);
zhuyao[2] = new Student("2018211002", "李搞四", 99, 98);
zhuyao[3] = new Student("2018211003", "王老五", 52, 88);
zhuyao[4] = new Student("2018211004", "兔歪六", 82, 74);
zhuyao[5] = new Student("2018211005", "蛇数七", 66, 55);
zhuyao[6] = new Student("2018211006", "马爸八", 44, 59);
zhuyao[7] = new Student("2018211007", "羊法九", 84, 85);
zhuyao[8] = new Student("2018211008", "猴老十", 64, 91);
zhuyao[9] = new Student("2018211009", "鸡十一", 78, 77);
calculate();
analysis();
}
// 分析模块
public void analysis() {
numYouxiu = new int[2];
numLianghao = new int[2];
numJige = new int[2];
numBujige = new int[2];
youxiuB = new double[2];
lianghaoB = new double[2];
jigeB = new double[2];
bujigeB = new double[2];
for (int i = 1; i <= now_number; i++) {
if (zhuyao[i].grade[1] >= 85) numYouxiu[0]++;
else if (zhuyao[i].grade[1] >= 70) numLianghao[0]++;
else if (zhuyao[i].grade[1] >= 60) numJige[0]++;
else if (zhuyao[i].grade[1] < 60) numBujige[0]++;
if (zhuyao[i].grade[2] >= 85) numYouxiu[1]++;
else if (zhuyao[i].grade[2] >= 70) numLianghao[1]++;
else if (zhuyao[i].grade[2] >= 60) numJige[1]++;
else if (zhuyao[i].grade[2] < 60) numBujige[1]++;
}
for (int i = 0; i < 2; i++) {
youxiuB[i] = (double) numYouxiu[i] / now_number;
lianghaoB[i] = (double) numLianghao[i] / now_number;
jigeB[i] = (double) numJige[i] / now_number;
bujigeB[i] = (double) numBujige[i] / now_number;
}
}
// 计算总分和平均分
public void calculate() {
double sum1 = 0, sum2 = 0, sum3 = 0;
for (int i = 1; i <= now_number; i++) {
zhuyao[i].grade[3] = zhuyao[i].grade[1] + zhuyao[i].grade[2];
sum1 += zhuyao[i].grade[1];
sum2 += zhuyao[i].grade[2];
sum3 += zhuyao[i].grade[3];
}
avg[1] = sum1 / now_number;
avg[2] = sum2 / now_number;
avg[3] = sum3 / now_number;
}
// 记录步骤
public void record(int x, int pos) {
rcaozuo[++now_r] = x;
bianhao[now_r] = pos;
rData[now_r] = new Student(zhuyao[pos].id.toString(), zhuyao[pos].name.toString(), zhuyao[pos].grade[1], zhuyao[pos].grade[2]);
}
// 删除
public void delete(int pos) {
for (int i = pos; i <= now_number; i++) {
zhuyao[i] = new Student(zhuyao[i + 1]);
}
now_number--;
calculate();
analysis();
}
// 撤销模块
public boolean revocation() {
if (now_r <= 0)
return false;
// if(bianhao[now_r] > now_number){ for (; bianhao[now_r] > now_number ; now_r--) { } }
if (rcaozuo[now_r] == 1) { // 撤销修改
zhuyao[bianhao[now_r]] = new Student(rData[now_r]);
} else if (rcaozuo[now_r] == 2) { // 撤销增加
now_number--;
} else if (rcaozuo[now_r] == 3) { // 撤销删除
now_number++;
for (int i = now_number; i > bianhao[now_r]; i--) {
zhuyao[i] = new Student(zhuyao[i - 1]);
}
zhuyao[bianhao[now_r]] = new Student(rData[now_r]);
}
calculate();
analysis();
now_r--;
return true;
}
// 排序
public void sort(int flag, int order){
// flag = 1,按照课程1成绩排序
// flag = 2,按照课程2成绩排序
// flag = 3,按照总分排序
// order = 1, 升序，order = 2, 降序
Student temp;
for (int i = 1; i <= now_number ; i++) {
vDate[i] = new Student(zhuyao[i]);
}
for (int i = 1; i < now_number; i++) {
for (int j = i+1; j <= now_number; j++) {
if(flag == 1){
if(judge(vDate[i].grade[1], vDate[j].grade[1], order)){
temp = new Student(vDate[i]);
vDate[i] = new Student(vDate[j]);
vDate[j] = new Student(temp);
}
} else if(flag == 2){
if(judge(vDate[i].grade[2], vDate[j].grade[2], order)){
temp = new Student(vDate[i]);
vDate[i] = new Student(vDate[j]);
vDate[j] = new Student(temp);
}
} else if(flag == 3){
if(judge(vDate[i].grade[3], vDate[j].grade[3], order)){
temp = new Student(vDate[i]);
vDate[i] = new Student(vDate[j]);
vDate[j] = new Student(temp);
}
}
}
}
for (int i = 1; i <= now_number ; i++) {
System.out.println(vDate[i]);
}
}
// 判断大小
public boolean judge(double a, double b, int order) {
if (order == 1) return a > b;
else return a < b;
}
}
}
public class SGC {
public static void main(String[] args) {
Interface itf = new Interface();
itf.showFrame();
}
}
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