簡單實現Java版學生管理系統

本文實例為大家分享了Java實現學生管理系統的具體代碼，供大家參考，具體內容如下

package BookDemo_1; import javax.swing.*; import java.awt.*; import java.awt.event.*; public class Test { public static void main(String[] args) { StudentSys stuSys=new StudentSys("學生管理系統"); stuSys.initWin(); } } class StudentSys extends JFrame{ private JPanel p1,p2,p3,combop; private JTabbedPane tab; private Container container; private JButton b1,b2; private Listener listener; private Label nameLabel; private Label gradeLabel; private Label showLabel; private JTextField textName; private JTextField textGrade; private TextArea showGradeArea; /* * 查找* */ private Label searchLabel; private JTextField searchText; private JButton sBut; private JTextField resultText; private String[] name; private String[] grade; /* * 排序* */ private TextArea showTextArea; private JButton sortBut; private int countNum=0; private JButton clearBut; public StudentSys(String str){ super(str); this.name=new String[100]; this.grade=new String[100]; listener = new Listener(); tab = new JTabbedPane(JTabbedPane.TOP); //容器container = this.getLayeredPane(); //對象化面板combop = new JPanel(); p1 = new JPanel(); p2 = new JPanel(); p3 = new JPanel(); b1 =new JButton("確認添加"); b2 =new JButton("撤回添加"); nameLabel =new Label("姓名"); gradeLabel =new Label("成績"); showLabel=new Label("當前記錄為零！ "); textName =new JTextField(15); textGrade =new JTextField(15); showGradeArea=new TextArea(); /* * 查找* */ searchLabel=new Label("請輸入姓名："); searchText=new JTextField(15); sBut=new JButton("確認查找"); resultText=new JTextField(15); /* * 排序* */ showTextArea=new TextArea(); sortBut=new JButton("成績排序"); clearBut=new JButton("清空數據"); } public void initWin(){ this.setBounds(300, 300, 500, 400); this.addWindowListener(new WindowAdapter(){ public void windowClosing(WindowEvent e) { super.windowClosing(e); System.exit(0); }}); layoutWin(); this.setVisible(true); } private void layoutWin(){ tab.add(p1,"成績輸入"); tab.add(p2,"成績查詢"); tab.add(p3,"成績排序"); combop.add(new JLabel("學生信息管理系統")); container.setLayout(new BorderLayout()); container.add(combop,BorderLayout.NORTH); container.add(tab,BorderLayout.CENTER); Container con1=new Container(); con1.setLayout(new FlowLayout()); con1.add(nameLabel); con1.add(textName); con1.add(gradeLabel); con1.add(textGrade); p1.add(con1,BorderLayout.NORTH); p1.add(con1); p1.add(showGradeArea); Container con2=new Container(); con2.setLayout(new FlowLayout()); con2.add(b1); con2.add(b2); con2.add(showLabel); p1.add(con2); b1.addActionListener(listener); b2.addActionListener(listener); /* * 查找佈局* */ Container con3=new Container(); con3.setLayout(new FlowLayout()); con3.add(searchLabel); con3.add(searchText); con3.add(sBut); p2.add(con3,BorderLayout.NORTH); sBut.addActionListener(listener); p2.add(resultText); /* * 排序佈局* */ p3.add(showTextArea); p3.add(sortBut); p3.add(clearBut); sortBut.addActionListener(listener); clearBut.addActionListener(listener); } /* * java內部類實現ActionListener接口* */ class Listener implements ActionListener{ @Override public void actionPerformed(ActionEvent e) { if(e.getSource()==b1){ if((textName.getText().equals(""))||(textGrade.getText().equals(""))){ showLabel.setText("添加失敗(姓名,成績不能有空)！ "); } else{ name[countNum]=textName.getText(); grade[countNum]=textGrade.getText(); countNum++; String area="添加成功,當前有"+countNum+"條記錄"; showLabel.setText(area); sortMess(false); textName.setText(""); textGrade.setText(""); } } if(e.getSource()==b2){ if(countNum>0){ countNum--; String area="撤回成功,當前有"+countNum+"條記錄"; showLabel.setText(area); sortMess(false); } } if(e.getSource()==sBut){ if(!searchText.getText().equals("")){ searchMess(searchText.getText()); } } if(e.getSource()==sortBut){ sortMess(true); } if(e.getSource()==clearBut){ if(!showTextArea.getText().equals("")){ showTextArea.setText(""); } } } public void sortMess(boolean sign) { // TODO Auto-generated method stub if(sign){ for(int i=0;i<countNum;i++){ for(int j=i+1;j<countNum;j++){ if(Integer.parseInt(grade[i])<Integer.parseInt(grade[j])){ String s1,s2; s1=name[i]; s2=grade[i]; name[i]=name[j]; grade[i]=grade[j]; name[j]=s1; grade[j]=s2; } } } }else{ if(!showGradeArea.getText().equals("")){ showGradeArea.setText(""); } } for(int i=0;i<countNum;i++){ String content="姓名:"+name[i]+"/t"+"成績"+grade[i]; if(sign)showTextArea.append(content+"/n"); else showGradeArea.append(content+"/n"); } } public void searchMess(String n) { // TODO Auto-generated method stub for(int i=0;i<countNum;i++){ if(name[i].equals(n)){ String content="姓名:"+name[i]+","+"成績"+grade[i]; resultText.setText(content); return; } } resultText.setText("未找到該學生!"); } } }

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