JAVA大作业：学生成绩管理系统（含有用户界面），供大家参考，具体内容如下
ps ：多个包写在一起
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package test;import java.awt.*;import java.awt.event.*;import javax.swing.*;import java.util.ArrayList;class person{ public String name; public String age;}class Student extends person{ public String no; public String score1,score2,score3,score4; public Student(String no, String name, String age,String score1,String score2,String score3,String score4) { this.no = no; this.name = name; this.age = age; this.score1 = score1; this.score2 = score2; this.score3 = score3; this.score4 = score4; } public String getNo() { return this.no; } public void setNo(String no) { this.no = no; } public String getName() { return this.name; } public void setName(String name) { this.name = name; } public String getAge() { return this.age; } public void setAge(String age) { this.age = age; } public String getscore1() { return this.score1; } public void setscore1(String score1) { this.score1 = score1; } public String getscore2() { return this.score2; } public void setscore2(String score2) { this.score2 = score2; } public String getscore3() { return this.score3; } public void setscore3(String score3) { this.score3 = score3; } public String getscore4() { return this.score4; } public void setscore4(String score4) { this.score4 = score4; }}class Class{ ArrayList<Student> stuList; public Class(){ this.stuList=new ArrayList<>(); } public void addStudent(Student stu){ this.stuList.add(stu); } public void deleteStudent(Student s){ this.stuList.remove(s); }}class menu extends JFrame{ public menu() { this.setBounds(300, 150, 500, 450); this.setTitle("大连海事大学 -- --学生信息管理系统"); this.setLayout(null); JLabel labTipw = new JLabel("欢迎进入 大连海事大学 学生信息管理系统"); labTipw.setBounds(50, 2, 250, 45); JLabel labTipws = new JLabel("（*新用户初始密码为 身份证后六位数字）"); labTipws.setBounds(50, 15, 250, 45); JLabel labyonghu = new JLabel("用户名:"); labyonghu.setBounds(50, 60, 100, 50); JTextField txtyonghu = new JTextField("请输入登录用户名：",30); txtyonghu.setBounds(130, 76, 180, 30); JLabel labmima = new JLabel("密码："); labmima.setBounds(50, 100, 50, 50); JTextField txtmima = new JTextField("请输入登录6位密码：",30); txtmima.setBounds(130, 117, 180, 30); JButton btndianji = new JButton("点击登录"); btndianji.setBounds(130, 165, 180, 30); btndianji.setForeground(Color.BLUE); this.add(labTipw); this.add(labTipws); this.add(labyonghu); this.add(txtyonghu); this.add(labmima); this.add(txtmima); this.add(btndianji); btndianji.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { new StudentFrame();} } ); setVisible(true); } }public class StudentFrame extends JFrame { Class c = new Class(); JLabel labNo; JLabel labName; JLabel labAge; JLabel labscore1; JLabel labscore2; JLabel labscore3; JLabel labscore4; JLabel labTip; JLabel labavr; JTextField txtNo; JTextField txtName; JTextField txtAge; JTextField txtscore1; JTextField txtscore2; JTextField txtscore3; JTextField txtscore4; JTextField txtavr; JButton btnAdd; JButton btnRemove; JButton btnModify; JButton btnClear; JButton btnFirst; JButton btnPrev; JButton btnNext; JButton btnLast; JButton btnCheck; JOptionPane dialog; public StudentFrame() { this.setBounds(300, 100, 650, 530); this.setTitle("大连海事大学 -- --学生信息管理系统"); this.setLayout(null); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); studentin(); addStu(); firstStudent(); lastStudent(); previous(); next(); remove(); check(); modify(); clear(); this.setVisible(true); } public void studentin() { labTip = new JLabel("登陆成功 ！您已经进入管理系统（仅输入学号便可查找学生信息）."); labTip.setBounds(50, 2, 550, 45); labNo = new JLabel("学生学号:"); labNo.setBounds(50, 20, 100, 50); txtNo = new JTextField("请输入6位学号：",30); txtNo.setBounds(130, 35, 180, 30); labName = new JLabel("学生姓名:"); labName.setBounds(50, 60, 100, 50); txtName = new JTextField("请输入学生姓名：",30); txtName.setBounds(130, 76, 180, 30); labAge = new JLabel("班级："); labAge.setBounds(50, 100, 50, 50); txtAge = new JTextField("请输入学生所在班级：",30); txtAge.setBounds(130, 117, 180, 30); labscore1 = new JLabel("JAVA 成绩:"); labscore1.setBounds(50, 140, 100, 50); txtscore1 = new JTextField("请输入学生成绩：",30); txtscore1.setBounds(130, 158, 180, 30); labscore2 = new JLabel("C语言成绩:"); labscore2.setBounds(50, 189, 100, 50); txtscore2 = new JTextField("请输入学生成绩：",30); txtscore2.setBounds(130, 199, 180, 30); labscore3 = new JLabel("Python成绩:"); labscore3.setBounds(50, 230, 100, 50); txtscore3 = new JTextField("请输入学生成绩：",30); txtscore3.setBounds(130, 240, 180, 30); labscore4 = new JLabel("C++ 成绩:"); labscore4.setBounds(50, 290, 100, 50); txtscore4 = new JTextField("请输入学生成绩：",30); txtscore4.setBounds(130, 301, 180, 30); labavr = new JLabel("操作说明 ** |<< : 第一个学生信息 <:上一位学生信息 >：下一个学生信息 >>|：最后一个学生信息"); labavr.setBounds(50, 330, 580, 50); btnAdd = new JButton("添加"); btnAdd.setBounds(50, 385, 80, 20); btnAdd.setForeground(Color.BLACK); btnModify = new JButton("修改"); btnModify.setBounds(150, 385, 80, 20); btnModify.setForeground(Color.BLUE); btnRemove = new JButton("删除"); btnRemove.setBounds(250, 385, 80, 20); btnRemove.setForeground(Color.RED); btnClear = new JButton("清空"); btnClear.setBounds(350, 385, 80, 20); btnClear.setForeground(Color.GREEN); btnCheck = new JButton("查找信息"); btnCheck.setBounds(350, 145, 160, 50); btnCheck.setForeground(Color.BLACK); btnFirst = new JButton("|<<"); btnFirst.setBounds(50, 432, 80, 20); btnFirst.setForeground(Color.PINK); btnPrev = new JButton("<"); btnPrev.setBounds(150, 432, 80, 20); btnPrev.setForeground(Color.BLACK); btnNext = new JButton(">"); btnNext.setBounds(250, 432, 80, 20); btnNext.setForeground(Color.BLACK); btnLast = new JButton(">>|"); btnLast.setBounds(350, 432, 80, 20); btnLast.setForeground(Color.PINK); this.add(labNo); this.add(labName); this.add(labAge); this.add(labscore1); this.add(txtNo); this.add(labTip); this.add(txtName); this.add(txtAge); this.add(txtscore1); this.add(btnAdd); this.add(btnRemove); this.add(btnModify); this.add(btnClear); this.add(btnFirst); this.add(btnPrev); this.add(btnNext); this.add(btnLast); this.add(btnCheck); this.add(labavr); this.add(labscore2); this.add(txtscore2); this.add(labscore3); this.add(txtscore3); this.add(labscore4); this.add(txtscore4); } public boolean blank() { if (txtNo.getText().equals("")) { dialog.showMessageDialog(null, "学号输入有误 请重新输入！"); return false; } if (txtName.getText().equals("")) { dialog.showMessageDialog(null, "名字输入有误 请重新输入！"); return false; } if (txtAge.getText().equals("")) { dialog.showMessageDialog(null, "班级输入有误 请重新输入！"); return false; }if (txtscore1.getText().equals("")) { dialog.showMessageDialog(null, "成绩输入有误 请重新输入！"); return false; }if (txtscore2.getText().equals("")) { dialog.showMessageDialog(null, "成绩输入有误 请重新输入！"); return false; } if (txtscore3.getText().equals("")) { dialog.showMessageDialog(null, "成绩输入有误 请重新输入！"); return false; } if (txtscore4.getText().equals("")) { dialog.showMessageDialog(null, "成绩输入有误 请重新输入！"); return false; } return true; } public void addStu() { btnAdd.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if (blank() == true) { c.addStudent(new Student(txtNo.getText(), txtName.getText(), txtAge.getText(),txtscore1.getText(),txtscore2.getText(),txtscore3.getText(),txtscore4.getText())); dialog.showMessageDialog(null, "学生信息已添加成功"); }}}); } public void firstStudent() { btnFirst.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { txtNo.setText(c.stuList.get(0).getNo()); txtName.setText(c.stuList.get(0).getName()); txtAge.setText(c.stuList.get(0).getAge()); txtscore1.setText(c.stuList.get(0).getscore1()); txtscore2.setText(c.stuList.get(0).getscore2()); txtscore3.setText(c.stuList.get(0).getscore3()); txtscore4.setText(c.stuList.get(0).getscore4()); } }); } public void lastStudent() { btnLast.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { txtNo.setText(c.stuList.get(c.stuList.size() - 1).getNo()); txtName.setText(c.stuList.get(c.stuList.size() - 1).getName()); txtAge.setText(c.stuList.get(c.stuList.size() - 1).getAge()); txtscore1.setText(c.stuList.get(c.stuList.size() - 1).getscore1()); txtscore2.setText(c.stuList.get(c.stuList.size() - 1).getscore2()); txtscore3.setText(c.stuList.get(c.stuList.size() - 1).getscore3()); txtscore4.setText(c.stuList.get(c.stuList.size() - 1).getscore4()); } }); } public void previous() { btnPrev.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { int n = 0; for (int i = 0; i < c.stuList.size(); i++) { if (c.stuList.get(i).getNo().equals(txtNo.getText())) { n = i - 1; } } if (c.stuList.get(0).getNo().equals(txtNo.getText())) { dialog.showMessageDialog(null, "再无上一个学生"); } else { txtNo.setText(c.stuList.get(n).getNo()); txtName.setText(c.stuList.get(n).getName()); txtAge.setText(c.stuList.get(n).getAge()); txtscore1.setText(c.stuList.get(n).getscore1()); txtscore2.setText(c.stuList.get(n).getscore2()); txtscore3.setText(c.stuList.get(n).getscore3()); txtscore4.setText(c.stuList.get(n).getscore4()); } } }); } public void next() { btnNext.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { int n = 0; for (int i = 0; i < c.stuList.size(); i++) { if (c.stuList.get(i).getNo().equals(txtNo.getText())) { n = i + 1; } } if (c.stuList.get(c.stuList.size() - 1).getNo().equals(txtNo.getText())) { dialog.showMessageDialog(null, "再无下一个学生"); } else { txtNo.setText(c.stuList.get(n).getNo()); txtName.setText(c.stuList.get(n).getName()); txtAge.setText(c.stuList.get(n).getAge()); txtscore1.setText(c.stuList.get(n).getscore1()); txtscore2.setText(c.stuList.get(n).getscore2()); txtscore3.setText(c.stuList.get(n).getscore3()); txtscore4.setText(c.stuList.get(n).getscore4());} } }); } public void remove() { btnRemove.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if (c.stuList.size() == 0) { JOptionPane.showMessageDialog(null, "没有该学生信息"); } else { Student s = new Student(txtNo.getText(), txtName.getText(), txtAge.getText(),txtscore1.getText(),txtscore2.getText(),txtscore3.getText(),txtscore4.getText()); if (blank() == true) { System.out.println(c.stuList.contains(s)); System.out.println(s); if (!c.stuList.contains(s)) { c.deleteStudent(s); JOptionPane.showMessageDialog(null, "已经删除成功"); int a = 0; for (int i = 0; i < c.stuList.size(); i++) { if (c.stuList.get(i).getNo().equals(txtNo.getText())) { a = i + 1; } } if (c.stuList.size() > 0) { if (c.stuList.get(c.stuList.size() - 1).getNo().equals(txtNo.getText())) { txtNo.setText(c.stuList.get(0).getNo()); txtName.setText(c.stuList.get(0).getName()); txtAge.setText(c.stuList.get(0).getAge()); txtscore1.setText(c.stuList.get(0).getscore1()); txtscore2.setText(c.stuList.get(0).getscore2()); txtscore3.setText(c.stuList.get(0).getscore3()); txtscore4.setText(c.stuList.get(0).getscore4()); } else { txtNo.setText(c.stuList.get(a).getNo()); txtName.setText(c.stuList.get(a).getName()); txtAge.setText(c.stuList.get(a).getAge()); txtscore1.setText(c.stuList.get(a).getscore1()); txtscore2.setText(c.stuList.get(a).getscore2()); txtscore3.setText(c.stuList.get(a).getscore3()); txtscore4.setText(c.stuList.get(a).getscore4()); } } else { clear(); } } else { dialog.showMessageDialog(null, "未来找到对应学生的信息"); }} } } }); } public void modify() { btnModify.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if (c.stuList.size() == 0) { dialog.showMessageDialog(null, "没有该学生信息"); } for (Student s : c.stuList) { if (s.getNo().equals(txtNo.getText())) { if (blank() == true) { s.setName(txtName.getText()); s.setAge(txtAge.getText()); JOptionPane.showMessageDialog(null, "已经修改成功"); return; } } } JOptionPane.showMessageDialog(null, "修改失败请重新操作"); } }); } public void check() { btnCheck.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if ((txtNo.getText().equals(""))) { dialog.showMessageDialog(null, "学号不能为空 请从新输入"); } else { int m = 0; for (int i = 0; i < c.stuList.size(); i++) { if (c.stuList.get(i).getNo().equals(txtNo.getText())) { JOptionPane.showMessageDialog(null, "已查到该学生信息"); txtName.setText(c.stuList.get(i).getName()); txtAge.setText(c.stuList.get(i).getAge()); txtscore1.setText(c.stuList.get(i).getscore1()); txtscore2.setText(c.stuList.get(i).getscore2()); txtscore3.setText(c.stuList.get(i).getscore3()); txtscore4.setText(c.stuList.get(i).getscore4()); break;} m++;} if (m == c.stuList.size()) { dialog.showMessageDialog(null, "没有此学生的相关信息"); return; } } } }); } public void clear() { btnClear.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { txtNo.setText(""); txtName.setText(""); txtAge.setText(""); txtscore1.setText(""); txtscore2.setText(""); txtscore3.setText(""); txtscore4.setText(""); } } ); } public static void main(String[] args) { new menu(); } } |
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/weixin_42305364/article/details/82191417
