java选课页面代码 java学生选课系统课程设计

用Java语言设计一个界面，

首先：采用什么技术实现

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java语言可以使用awt 和swing等技术实现图形界面

推荐使用Swing，因为Swing比AWT更专业，更漂亮，组件更丰富，功能更强大。

2. 其次：分析采用什么布局

边界布局BorderLayout，配合表格布局GridLayout，既简单又美观

3. 最后：分析需求中需要用的组件

学生姓名学号显示信息需要用到文本框JTextField

单选按钮需要用到组件 JRadioButton

复选框需要用到组件 JCheckBox

组合框需要用到组件 JComboBox

图片效果

参考代码如下

//导入所需要的包

import java.awt.event.*;

import javax.swing.border.*;

import javax.swing.*;

import java.awt.*;

public class ClassFrame extends JFrame {// 写一个类继承自JFrame 窗体

// 定义组件

private static final long serialVersionUID = 1L;

private JPanel contentPane;

private JTextField tfName, tfNum, allInfo;

private JRadioButton rb1, rb2;

private JCheckBox cb1, cb2, cb3;

private JComboBoxString t1, t2, t3;

public static void main(String[] args) {

EventQueue.invokeLater(new Runnable() {

public void run() {

try {

ClassFrame frame = new ClassFrame();// 创建一个窗口实例

frame.setVisible(true);// 让该窗口实例可见

} catch (Exception e) {

e.printStackTrace();

}

});

}

/**

* 窗口属性的设置,内部组件的初始化

public ClassFrame() {

setTitle("选课ing...");//标题

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);// 设置关闭是退出JVM

setSize(450, 339);// 设置窗体大小

setLocationRelativeTo(null);// 窗体居中

contentPane = new JPanel();// 内容面板

contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));

contentPane.setLayout(new BorderLayout(0, 0));// 设置布局

setContentPane(contentPane);

JPanel panel = new JPanel(new GridLayout(5, 1, 5, 10));//5行1列的表格布局

panel.setBorder(new TitledBorder(null, "", TitledBorder.LEADING, TitledBorder.TOP, null, null));

contentPane.add(panel, BorderLayout.CENTER);//给panel添加边框

JPanel panel_1 = new JPanel();

panel.add(panel_1);

JLabel label = new JLabel("姓名");

panel_1.add(label);

tfName = new JTextField();

panel_1.add(tfName);

tfName.setColumns(10);

JLabel label_2 = new JLabel("学号");

panel_1.add(label_2);

tfNum = new JTextField();

tfNum.setColumns(10);

panel_1.add(tfNum);

rb1 = new JRadioButton("男");

panel_1.add(rb1);

rb1.setSelected(true);//设置单选按钮中,默认选择的按钮

rb2 = new JRadioButton("女");

panel_1.add(rb2);

ButtonGroup bts = new ButtonGroup();//单选按钮需要加入同一个ButonGroup中才能生效

bts.add(rb1);

bts.add(rb2);

JPanel panel_2 = new JPanel();

panel.add(panel_2);

cb1 = new JCheckBox("高等数学");

panel_2.add(cb1);

t1 = new JComboBoxString();

t1.setModel(new DefaultComboBoxModelString(new String[] { "林老师", "赵老师", "孙老师" }));

panel_2.add(t1);

JPanel panel_3 = new JPanel();

panel.add(panel_3);

cb2 = new JCheckBox("世界经济");

panel_3.add(cb2);

t2 = new JComboBoxString();

t2.setModel(new DefaultComboBoxModelString(new String[] { "张老师", "刘老师" }));

panel_3.add(t2);

JPanel panel_4 = new JPanel();

panel.add(panel_4);

cb3 = new JCheckBox("音乐赏析");

panel_4.add(cb3);

t3 = new JComboBoxString();

t3.setModel(new DefaultComboBoxModelString(new String[] { "王老师", "周老师" }));

panel_4.add(t3);

JPanel panel_5 = new JPanel();

panel.add(panel_5);

JButton jbOk = new JButton("确定");

panel_5.add(jbOk);

JButton jbRest = new JButton("重填");

panel_5.add(jbRest);

JPanel panelSouth = new JPanel();

contentPane.add(panelSouth, BorderLayout.SOUTH);

JLabel labe = new JLabel("选课信息");

labe.setHorizontalAlignment(SwingConstants.LEFT);

panelSouth.add(labe);

allInfo = new JTextField();

allInfo.setColumns(30);

panelSouth.add(allInfo);

JPanel panelNorth = new JPanel();

contentPane.add(panelNorth, BorderLayout.NORTH);

JLabel labelTitle = new JLabel("学生选课界面");

labelTitle.setForeground(Color.DARK_GRAY);

labelTitle.setFont(new Font("宋体", Font.BOLD, 20));

panelNorth.add(labelTitle);

//给确定按钮添加事件处理代码

jbOk.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

StringBuilder info = new StringBuilder();

String name = tfName.getText();

String num = tfNum.getText();

String sex;

if (rb1.isSelected()) {

sex = "男";

} else {

sex = "女";

}

info.append(name + num + sex);

if (cb1.isSelected()) {

String c = cb1.getText();

String t = t1.getSelectedItem().toString();

info.append(" " + c + t);

}

if (cb2.isSelected()) {

String c = cb2.getText();

String t = t2.getSelectedItem().toString();

info.append(" " + c + t);

}

if (cb3.isSelected()) {

String c = cb3.getText();

String t = t3.getSelectedItem().toString();

info.append(" " + c + t);

}

allInfo.setText(info.toString());//把学生信息和选课信息放到文本框

}

});

//给重填按钮设置事件处理代码

jbRest.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

tfName.setText("");

tfNum.setText("");

rb1.setSelected(true);

cb1.setSelected(false);

t1.setSelectedIndex(0);

cb2.setSelected(false);

t2.setSelectedIndex(0);

cb3.setSelected(false);

t3.setSelectedIndex(0);

allInfo.setText("");

}

});

}

java代码

帮你改了一下：

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class logon extends JFrame {

public static void main(String args[]) {

logon a=new logon();

a.show();

}

CheckboxGroup ShenFen=new CheckboxGroup();

Checkbox ShenFen1;

Checkbox ShenFen2;

Checkbox ShenFen3;

JButton LogonButton,Exit;

JTextField id;

JPasswordField password;

public logon(){

this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

this.setLayout(null);

setTitle("学生选课系统");

setSize(600,600);

ShenFen1=new Checkbox("学生",ShenFen,true);

ShenFen2=new Checkbox("教师",ShenFen,false);

ShenFen3=new Checkbox("管理员",ShenFen,false);

add(ShenFen1);

add(ShenFen2);

add(ShenFen3);

ShenFen1.setBounds(300, 350, 50, 50);

ShenFen2.setBounds(350, 350, 50, 50);

ShenFen3.setBounds(400, 350, 50, 50);

LogonButton=new JButton("登录");

add(LogonButton);

Exit=new JButton("退出");

add(Exit);

Exit.setBounds(400, 400,60, 60);

id=new JTextField();

add(id);

id.setBounds(300, 200, 200, 30);

password=new JPasswordField();

add(password);

password.setBounds(300, 250, 200, 30);

}

300分急求教务选课系统的JAVA代码。

import java.awt.*;

import java.awt.event.*;

import java.util.*;

class p1 extends Panel

{

Label l1;

Font f=new Font("宋体",Font.BOLD,20);

p1()

{

setLayout(new GridLayout(1,1));

l1=new Label("网上选课记录系统",Label.CENTER);

l1.setFont(f);

add(l1);

}

class p2 extends Panel

{

Label l1,l2;

TextField t1,t2;

p2()

{

setLayout(new GridLayout(1,4));

l1=new Label("姓名",Label.CENTER);

l2=new Label("学号",Label.CENTER);

t1=new TextField(10);

t2=new TextField(10);

add(l1);

add(t1);

add(l2);

add(t2);

}

class p3 extends Panel

{

Label l1,l2;

TextField t1,t2;

p3()

{

setLayout(new GridLayout(1,4));

l1=new Label("专业",Label.CENTER);

l2=new Label("所属院(系)",Label.CENTER);

t1=new TextField(10);

t2=new TextField(10);

add(l1);

add(t1);

add(l2);

add(t2);

}

class p4 extends Panel

{

Label l1;

Button btn1;

Button btn2;

Button btn3;

Font f=new Font("宋体",Font.BOLD,20);

p4()

{

setLayout(new GridLayout(1,4));

l1=new Label("请选择您要选修的课程并确认",Label.CENTER);

btn1=new Button("查询");

btn2=new Button("确认");

btn3=new Button("退出系统");

add(l1);

add(btn1);

add(btn2);

add(btn3);

}

class p5 extends Panel

{

List list ;

p5()

{

setLayout(new GridLayout(1,1));

list=new List(8,true);

list.add("大学英语");

list.add("计算机图形学");

list.add("JAVA语言");

list.add("高等数学");

list.add("数据结构");

list.add("单片机");

list.add("网络应用与开发");

list.add("概率论与数理统计");

list.add("管理学概论");

list.add("数据库概论");

list.add("英语听力");

list.add("VC++");

list.add("商务英语");

list.add("会计学");

list.add("经济学");

list.add("计算机网络");

add(list);

}

class p6 extends Panel

{

TextArea ta;

p6()

{

setLayout(new GridLayout(1,1));

ta=new TextArea(8,30);

add(ta);

}

class p8 extends Panel

{

Label l1,l2,l3;

Label l4,l5,l6,l7,l9;

Panel p11,p22,p33,p44,p55;

TextField t1,t2;

Button btn;

p8()

{

p11=new Panel();

p22=new Panel();

p33=new Panel();

p44=new Panel();

p55=new Panel();

p11.setLayout(new GridLayout(1,1));

p22.setLayout(new GridLayout(1,1));

p33.setLayout(new GridLayout(1,4));

p44.setLayout(new GridLayout(1,4));

p55.setLayout(new GridLayout(1,1));

l4=new Label("");

l5=new Label("");

l6=new Label("");

l7=new Label("");

l9=new Label("");

l1=new Label("欢迎来到网上选课系统",Label.CENTER);

Font f=new Font("宋体",Font.BOLD,30);

l1.setFont(f);

l2=new Label("请输入管理员帐号",Label.CENTER);

l3=new Label("请输入管理员密码",Label.CENTER);

setBackground(Color.lightGray);

btn=new Button("确定");

t1=new TextField(20);

t2=new TextField(15);

t2.setEchoChar(´*´);

l1.setForeground(Color.magenta);

t1.setBackground(Color.cyan);

t2.setBackground(Color.cyan);

t1.setForeground(Color.red);

t2.setForeground(Color.red);

l2.setForeground(Color.blue);

l3.setForeground(Color.blue);

p11.add(l1);

p22.add(l4);

p33.add(l5);

p33.add(l2);

p33.add(t1);

p33.add(l6);

p44.add(l7);

p44.add(l3);

p44.add(t2);

p44.add(btn);

p55.add(l9);

setLayout(new GridLayout(5,1));

add(p11);

add(p22);

add(p33);

add(p44);

add(p55);

}

class p9 extends Panel

{

p1 pn1=new p1();

p2 pn2=new p2();

p3 pn3=new p3();

p4 pn4=new p4();

p5 pn5=new p5();

p6 pn6=new p6();

p9()

{

setLayout(new GridLayout(6,1));

add(pn1);

add(pn2);

add(pn3);

add(pn4);

add(pn5);

add(pn6);

}

class user

{

String username;

String sd;

String major;

String institute;

String course;

user(String x1,String x2,String x3,String x4,String x5)

{

username=x1;

sd=x2;

major=x3;

institute=x4;

course=x5;

}

public class www

{

public static void main(String args[])

{

new m();

}

class m extends Frame implements ActionListener,ItemListener

{

StringBuffer ss=new StringBuffer("您好!您选修的课程有:");

Vector xiang=new Vector();

p9 pn9;

p8 pn8;

CardLayout cc=new CardLayout();

Button btn1;

Dialog d1;

m()

{

super("网上选课");

pn8=new p8();

pn9=new p9();

setLayout(cc);

add("one",pn8);

add("two",pn9);

btn1=new Button("确定");

pn9.pn1.l1.setBackground(Color.pink);

pn9.pn1.l1.setForeground(Color.blue);

pn9.pn2.l1.setBackground(Color.gray);

pn9.pn2.l1.setForeground(Color.orange);

pn9.pn2.l2.setBackground(Color.gray);

pn9.pn2.l2.setForeground(Color.orange);

pn9.pn3.l1.setBackground(Color.gray);

pn9.pn3.l1.setForeground(Color.orange);

pn9.pn3.l2.setBackground(Color.gray);

pn9.pn3.l2.setForeground(Color.orange);

pn9.pn2.t1.setForeground(Color.red);

pn9.pn2.t1.setBackground(Color.cyan);

pn9.pn2.t2.setForeground(Color.red);

pn9.pn2.t2.setBackground(Color.cyan);

pn9.pn3.t1.setForeground(Color.red);

pn9.pn3.t1.setBackground(Color.cyan);

pn9.pn3.t2.setForeground(Color.red);

pn9.pn3.t2.setBackground(Color.cyan);

pn9.pn5.list.setBackground(Color.pink);

pn9.pn5.list.setForeground(Color.blue);

pn9.pn6.ta.setBackground(Color.blue);

pn9.pn6.ta.setForeground(Color.white);

pn9.pn4.btn1.addActionListener(this);

pn9.pn4.btn2.addActionListener(this);

pn9.pn4.btn3.addActionListener(this);

pn9.pn5.list.addActionListener(this);

(pn9.pn5.list).addItemListener(this);

pn8.btn.addActionListener(this);

btn1.addActionListener(this);

setSize(650,400);

show();

}

public void actionPerformed(ActionEvent e)

{

xiang.addElement(new user("马先生","23597483","计算机","计算机系","单片机，数学"));

xiang.addElement(new user("杨先生","7899452","计算机","计算机系","单片机，数学"));

xiang.addElement(new user("董先生","7899452","计算机","计算机系","单片机，数学"));

xiang.addElement(new user("何先生","7899453","计算机","计算机系","单片机，数学"));

if(e.getSource()==pn8.btn)

{

String ss="123";

if(ss.compareTo(pn8.t1.getText())==0ss.compareTo(pn8.t2.getText())==0)

cc.show(this,"two");

else

{

d1=new Dialog(this,"警告",true);

Panel p1=new Panel();

p1.add(new Label("您无权进本系统!"));

d1.add("Center",p1);

Panel p2=new Panel();

p2.add(btn1);

d1.add("South",p2);

d1.setSize(200,100);

d1.show();

}

if(e.getSource()==btn1)

{

d1.dispose();

}

if(e.getSource()==pn9.pn4.btn3)

{

dispose();

System.exit(0);

}

if(e.getSource()==pn9.pn4.btn2)

{

pn9.pn6.ta.setText("");

ss.append(" 您的姓名是:"+pn9.pn2.t1.getText()+" "+"您的学号是:"+pn9.pn2.t2.getText()+" ");

ss.append("您的专业是:"+pn9.pn3.t1.getText()+" "+"您所在院(系)是:"+pn9.pn3.t2.getText()+" ");

ss.append("您的所有信息将被保存!");

pn9.pn6.ta.setText(ss.toString());

user s1=new user(pn9.pn2.t1.getText(),pn9.pn2.t2.getText(),pn9.pn3.t1.getText(),pn9.pn3.t2.getText(),ss.toString());

int i;

for(i=0;ixiang.size();i++)

{

user s=(user)xiang.elementAt(i);

if(s.sd.compareTo(s1.sd)==0)

{

s.username=s1.username;

s.sd=s1.sd;

s.major=s1.major;

s.institute=s1.institute;

s.course=s1.course;

xiang.setElementAt(new user(s.username,s.sd,s.major,s.institute,s.course),i);

break;

}

if(i==xiang.size())

xiang.addElement(new user(pn9.pn2.t1.getText(),pn9.pn2.t2.getText(),pn9.pn3.t1.getText(),pn9.pn3.t2.getText(),ss.toString()));

}

if(e.getSource()==pn9.pn4.btn1)

{

pn9.pn6.ta.setText("");

if(pn9.pn2.t2.getText()=="")

{

d1=new Dialog(this,"注意",true);

Panel p1=new Panel();

p1.add(new Label("按学号进行查询!请输入学号!再按此键!"));

d1.add("Center",p1);

Panel p2=new Panel();

p2.add(btn1);

d1.add("South",p2);

d1.setSize(250,100);

d1.show();

}

int i;

for(i=0;ixiang.size();i++)

{

user s=(user)xiang.elementAt(i);

if(s.sd.compareTo(pn9.pn2.t2.getText())==0)

{

pn9.pn2.t1.setText(""+s.username);

pn9.pn3.t1.setText(""+s.major);

pn9.pn3.t2.setText(""+s.institute);

pn9.pn6.ta.setText("您选修的课程有:"+s.course);

break;

}

if(i==xiang.size())

{

d1=new Dialog(this,"警告",true);

Panel p1=new Panel();

p1.add(new Label("用户不存在!请重新输入!"));

d1.add("Center",p1);

Panel p2=new Panel();

p2.add(btn1);

d1.add("South",p2);

d1.setSize(200,100);

d1.show();

}

public void itemStateChanged(ItemEvent e)

{

List temp;

String sList[];

String mgr=new String("");

if(e.getItemSelectable()instanceof List)

{

temp=(List)(e.getItemSelectable());

sList=temp.getSelectedItems();

for(int i=0;isList.length;i++)

mgr=mgr+sList[i]+" ";

ss.append(mgr);

}

本程序已经成功！！！望再验证！！！！

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java选课页面代码 java学生选课系统课程设计

用Java语言设计一个界面，

java代码

300分急求教务选课系统的JAVA代码。

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