Java GUI implements the student achievement management system,

Java GUI implements the student achievement management system,

I have been learning java for more than a year and have been doing web exercises. In a project, I found that the GUI-related knowledge is required and the results cannot be obtained, there are not many articles in this area on the Internet, so I had to learn them from the beginning. However, I found that the GUI is very interesting, he does not rely on the Internet like a WEB program, and there are still many la s which are not very different from android. Only then can he find that he fell in love with GUI development, go directly to the code. I believe that android or related interface development understands the truth.

Let's take a look at the effect.

1. log on to the main interface

Package edu.gz u. stuManager; import java. awt. eventQueue; import javax. swing. JFrame; import javax. swing. JLabel; import javax. swing. JOptionPane; import java. awt. toolkit; import javax. swing. JTextField; import edu.gz u. stuManager. dao. userLoginValid; import edu.gz u. stuManager. domain. studentInfo; import edu.gz u. stuManager. view. studentMainView; import java. awt. choice; import java. awt. font; import java. awt. B Utton; import java. awt. event. mouseAdapter; import java. awt. event. mouseEvent; public class MainUI {private JFrame frame; private JTextField textField; private JTextField textField_1;/*** Launch the application. */public static void main (String [] args) {EventQueue. invokeLater (new Runnable () {public void run () {try {MainUI window = new MainUI (); window. frame. setVisible (true);} catch (effecti On e) {e. printStackTrace () ;}});}/*** Create the application. */public MainUI () {initialize ();}/*** Initialize the contents of the frame. */private void initialize () {frame = new JFrame (); frame. setTitle ("\ u6210 \ u7EE9 \ u7BA1 \ u7406 \ u7CFB \ u7EDF \ uFF08 \ u767B \ u5F55 \ uFF09"); frame. setIconImage (Toolkit. getdefatooltoolkit (). getImage (MainUI. class. getResource ("/image/func_list7_privmana.png "))); Frame. setBounds (400,250,450,300); frame. setdefaclocloseoperation (JFrame. EXIT_ON_CLOSE); frame. getContentPane (). setLayout (null ); JLabel lblNewLabel = new JLabel ("\ Alibaba \ u751F \ u6210 \ u7EE9 \ u7BA1 \ Alibaba \ u7CFB \ Alibaba \ u7528 \ u6237 \ Alibaba \ u5F55 \ uFF01"); lblNewLabel. setFont (new Font ("", Font. PLAIN, 16); lblNewLabel. setBounds (111, 17,287, 15); frame. getContentPane (). add (lblNewLabel); JLabel lblNewLabel _ 1 = new JLabel ("\ u7528 \ u6237 \ u540D \ uFF1A"); lblNewLabel_1.setFont (new Font ("", Font. PLAIN, 14); lblNewLabel_1.setBounds (87, 67, 67, 15); frame. getContentPane (). add (lblNewLabel_1); textField = new JTextField (); textField. setBounds (154, 64,141, 21); frame. getContentPane (). add (textField); textField. setColumns (10); JLabel label = new JLabel ("\ u5BC6 \ u7801 \ uFF1A"); label. setFont (new Font ("", Fon T. PLAIN, 14); label. setBounds (87,108, 67, 15); frame. getContentPane (). add (label); textField_1 = new JTextField (); textField_1.setColumns (10); textField_1.setBounds (154,103,141, 21); frame. getContentPane (). add (textField_1); JLabel lblNewLabel_2 = new JLabel ("\ u6211 \ u7684 \ u8EAB \ u4EFD \ u662F \ uFF1A"); trim (new Font ("", Font. PLAIN, 14); lblNewLabel_2.setBounds (105,150, 97, 15 ); Frame. getContentPane (). add (lblNewLabel_2); final Choice choice = new Choice (); choice. setBounds (210,147, 74, 21); choice. add ("student"); choice. add ("instructor"); choice. add ("System Administrator"); frame. getContentPane (). add (choice); Button button = new Button ("\ u767B \ u5F55"); button. setBounds (87,194, 76, 23); button. addMouseListener (new MouseAdapter () {@ Override public void mouseClicked (MouseEvent e) {String user = textF Ield. getText (); String password = textField_1.getText (); String shenfen = choice. getSelectedItem (); if (user. equals ("") | user = null) {JOptionPane. showMessageDialog (frame, shenfen + ": Hello, the account cannot be blank! "); Return;} else if (password. equals ("") | password = null) {JOptionPane. showMessageDialog (frame, shenfen + ": Hello, the password cannot be blank! "); Return;} else {StudentInfo stu = new StudentInfo (Integer. parseInt (user), Integer. parseInt (password), shenfen); UserLoginValid dao = new UserLoginValid (); String result = dao. isValid (stu); if ("Logon successful! ". Equals (result) {JOptionPane. showMessageDialog (frame, result); StudentMainView index = new StudentMainView (stu); JFrame frame2 = index. getFrame (); frame2.setVisible (true); frame. dispose ();} else {JOptionPane. showMessageDialog (frame, result) ;}}}); frame. getContentPane (). add (button); Button button_1 = new Button ("\ u53D6 \ u6D88"); button_1.setBounds (219,194, 76, 23); frame. getContentPane (). add (button_1 );}}

2. login verification Logic

Package edu.gz u. stuManager. dao; import edu.gz u. stuManager. domain. studentInfo; public class UserLoginValid {public String isValid (StudentInfo stu) {int idnum = stu. getIdnum (); int password = stu. getPassword (); String idntify = stu. getIdentify (); String result = null; if ("student ". equals (idnals) {if (idnum = 1207010209 & password = 123) {stu. setName ("Liu mingsheng"); result = "Logon successful! ";} Else {result =" this user does not exist in the student account. Please confirm your identity and log on again! ";}} Else if (" instructor ". equals (idnals) {if (idnum = 1174386356 & password = 123) {stu. setName ("Miss Liu mingsheng"); result = "Logon successful! ";} Else {result =" this user does not exist in the instructor account. Please confirm your identity and log on again! ";}} Else if (" System Administrator ". equals (idnals) {if (idnum = 999999 & password = 123) {stu. setName ("System Administrator"); result = "Logon successful! ";} Else {result =" this user does not exist in the system administrator account. Please confirm your identity and log on again! ";}} Return result ;}}

3. User object (this is a simple bean)

package edu.gzu.stuManager.Domain;  public class StudentInfo {  private int idnum;  private String name;  private int password;  private String identify;    public StudentInfo(int idnum,int password, String identify) {   super();   this.idnum = idnum;   this.password = password;   this.identify = identify;  }  public int getIdnum() {   return idnum;  }  public void setIdnum(int idnum) {   this.idnum = idnum;  }  public String getName() {   return name;  }  public void setName(String name) {   this.name = name;  }  public int getPassword() {   return password;  }  public void setPassword(int password) {   this.password = password;  }  public String getIdentify() {   return identify;  }  public void setIdentify(String identify) {   this.identify = identify;  }     } 

4. Main Interface after Successful Logon

Package edu.gz u. stuManager. view; import java. awt. button; import java. awt. canvas; import java. awt. choice; import java. awt. color; import java. awt. toolkit; import java. awt. event. itemEvent; import java. awt. event. itemListener; import javax. swing. JFrame; import javax. swing. JLabel; import javax. swing. JOptionPane; import javax. swing. JPanel; import javax. swing. JTextField; import edu.gz u. stuManager. domain. st UdentInfo; public class StudentMainView {private JFrame frame; private JTextField textField; private JTextField textField_1; private JTextField textField_2; private JTextField textField_3; private StudentInfo info;/*** Create the frame. * @ wbp. parser. entryPoint */public StudentMainView (StudentInfo info) {this.info = info;} public JFrame getFrame () {initialize (); return frame;}/*** Initialize The contents of the frame. * @ wbp. parser. entryPoint */public void initialize () {frame = new JFrame (); frame. setTitle ("\ u6210 \ u7EE9 \ u7BA1 \ u7406 \ u7CFB \ u7EDF \ uFF08 \ u5B66 \ u751F \ u7248 \ uFF09"); frame. setIconImage (Toolkit. getdefatooltoolkit (). getImage (StudentMainView. class. getResource ("/image/func_list7_privmana.png"); frame. setBounds (300,150,550,300); frame. setdefaclocloseoperation (JFrame. EXIT_ON _ CLOSE); frame. getContentPane (). setLayout (null); JLabel lblNewLabel = new JLabel ("Welcome [" + info. getName () + "] to log on to the Student Score Management System! "); LblNewLabel. setBounds (54,10,322, 15); frame. getContentPane (). add (lblNewLabel); JPanel panel = new JPanel (); panel. setBounds (29, 52,250,180); frame. getContentPane (). add (panel); panel. setLayout (null); JLabel lblNewLabel_1 = new JLabel ("\ u6210 \ u7EE9 \ u6570 \ u636E"); lblNewLabel_1.setBounds (94, 10, 65, 15); panel. add (lblNewLabel_1); JLabel lblNewLabel_2 = new JLabel ("\ u5B66 \ u53F7 \ uFF1A"); lblNewLabel_2.setBounds (22, 37, 40, 15); panel. add (lblNewLabel_2); textField = new JTextField (); textField. setBounds (72, 35,154, 21); textField. setText (info. getIdnum () + ""); panel. add (textField); textField. setColumns (10); JLabel lblNewLabel_3 = new JLabel ("\ u59D3 \ u540D \ uFF1A"); lblNewLabel_3.setBounds (22, 67, 44, 15); panel. add (lblNewLabel_3); textField_1 = new JTextField (); textField_1.setBounds (72, 66,154, 21); textField_1.setText (info. getName (); panel. add (textField_1); textField_1.setColumns (10); Canvas canvas = new Canvas (); canvas. setBackground (Color. BLUE); canvas. setBounds (22,100,205, 1); panel. add (canvas); JLabel lblNewLabel_4 = new JLabel ("\ u8BFE \ u7A0B \ u540D"); lblNewLabel_4.setBounds (22,116, 47, 15); panel. add (lblNewLabel_4); JLabel lblNewLabel_5 = new JLabel ("\ u6210 \ u7EE9"); lblNewLabel_5.setBounds (160,116, 43, 15); panel. add (lblNewLabel_5); textField_2 = new JTextField (); textField_2.setBounds (22,140,123, 21); panel. add (textField_2); textField_2.setColumns (10); textField_3 = new JTextField (); textField_3.setBounds (159,140, 66, 21); panel. add (textField_3); textField_3.setColumns (10); JPanel panel_1 = new JPanel (); panel_1.setBounds (317, 52,110,180); frame. getContentPane (). add (panel_1); panel_1.setLayout (null); JLabel lblNewLabel_6 = new JLabel ("\ u64CD \ u4F5C \ u83DC \ u5355"); average (15, 10, 54, 15 ); panel_1.add (lblNewLabel_6); Button button Button = new button ("\ u7B2C \ u4E00 \ u95E8 \ u8BFE \ u7A0B"); Button. setBounds (10, 31, 76, 23); panel_1.add (button); Button button_1 = new Button ("\ u4E0B \ u4E00 \ u95E8 \ u8BFE \ u7A0B"); limit (10, 61, 76, 23); panel_1.add (button_1); Button button_2 = new Button ("\ u4E0A \ u4E00 \ u95E8 \ u8BFE \ u7A0B "); button_2.setActionCommand ("\ u4E0A \ u4E00 \ u95E8 \ u8BFE \ u7A0B"); button_2.setBounds (10, 90, 76, 23); panel_1.add (button_2 ); button button_3 = new Button ("\ u6700 \ u540E \ u4E00 \ u95E8 \ u8BFE"); button_3.setBounds (10,117, 76, 23); panel_1.add (button_3 ); choice choice = new Choice (); choice. setBounds (10,149, 76, 21); choice. add ("Select Course"); choice. add ("Advanced Mathematics"); choice. add (""); choice. add ("Marxism-Leninism"); choice. add ("Mao Zedong Thought"); choice. add ("computer graphics"); choice. addItemListener (new ItemListener () {@ Override public void itemStateChanged (ItemEvent e) {Object [] objs = e. getItemSelectable (). getSelectedObjects (); for (Object ob: objs) {// JOptionPane. showMessageDialog (frame, ob. toString (); if ("Advanced Mathematics ". equals (ob. toString () {textField_2.setText ("Advanced Mathematics"); textField_3.setText ("98");} else if (" ". equals (ob. toString () {textField_2.setText (""); textField_3.setText ("87");} else if ("Marxism-Leninism ". equals (ob. toString () {textField_2.setText ("Marxism-Leninism"); textField_3.setText ("88");} else if ("Mao Zedong Thought ". equals (ob. toString () {textField_2.setText ("Mao Zedong Thought"); textField_3.setText ("73");} else if ("computer graphics ". equals (ob. toString () {textField_2.setText ("computer graphics"); textField_3.setText ("97") ;}}); panel_1.add (choice );}}

In this way, you can easily implement login verification. I plan to read data from the database. Due to the time relationship, this is simple and directly verified. If there is time in the future, I will do other operations.

The above is all the content of this article. I hope it will be helpful for your learning and support for helping customers.