Open in app

Sign in

Write

Sign in

[Java]小作品－學生成績管理系統

Boom
BOOM ⭐ 程式自學之旅
Published in
4 min readSep 20, 2020
  • 使用MVC來做出一個簡單作品
  • M(Model)

1. DataBase(表)

2. Class－＞uml圖

  • V(View)

－＞UI介面

－＞新增畫面

  • Controller
  • [database]

public class student {

private String name;
private int chi, eng, sum;

public student(String name, int chi, int eng) {

this.name = name;
if (chi >= 0 && chi <= 100)//if 0<=國文成績<=100
{
this.chi = chi;
}
if (eng >= 0 && eng <= 100)//if 0<=英文成績'<=100
{
this.eng = eng;
}
sum = chi + eng;
}

public void setName(String name) {
this.name = name;
}

public void setChi(int chi) {
this.chi = chi;
}

public void setEng(int eng) {
this.eng = eng;
}

public String getName() {
return name;
}

public int getChi() {
return chi;
}

public int getEng() {
return eng;
}

int getSum() {
return sum;
}

}

  • [UI]

public class studentUI extends javax.swing.JFrame {

public studentUI() {
initComponents();
}

@SuppressWarnings(“unchecked”)
// <editor-fold defaultstate=”collapsed” desc=”Generated Code”>
private void initComponents() {

jPanel1 = new javax.swing.JPanel();
jLabel1 = new javax.swing.JLabel();
jPanel2 = new javax.swing.JPanel();
jLabel2 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
jLabel4 = new javax.swing.JLabel();
name = new javax.swing.JTextField();
eng = new javax.swing.JTextField();
chi = new javax.swing.JTextField();
ok = new javax.swing.JButton();
jPanel3 = new javax.swing.JPanel();
jScrollPane1 = new javax.swing.JScrollPane();
ans = new javax.swing.JTextArea();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

jPanel1.setBackground(new java.awt.Color(153, 153, 153));
jPanel1.setToolTipText(“”);

jLabel1.setFont(new java.awt.Font(“微軟正黑體”, 1, 24)); // NOI18N
jLabel1.setText(“學員成績系統”);

javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(112, 112, 112)
.addComponent(jLabel1)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(18, 18, 18)
.addComponent(jLabel1)
.addContainerGap(23, Short.MAX_VALUE))
);

jPanel2.setBackground(new java.awt.Color(204, 204, 204));

jLabel2.setFont(new java.awt.Font(“微軟正黑體”, 0, 18)); // NOI18N
jLabel2.setText(“姓名：”);

jLabel3.setFont(new java.awt.Font(“微軟正黑體”, 0, 18)); // NOI18N
jLabel3.setText(“國文：”);

jLabel4.setFont(new java.awt.Font(“微軟正黑體”, 0, 18)); // NOI18N
jLabel4.setText(“英文：”);

ok.setFont(new java.awt.Font(“微軟正黑體”, 0, 18)); // NOI18N
ok.setText(“送出”);
ok.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
okMouseClicked(evt);
}
});

javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
jPanel2.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addGap(39, 39, 39)
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addGroup(jPanel2Layout.createSequentialGroup()
.addComponent(jLabel3)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(chi))
.addGroup(jPanel2Layout.createSequentialGroup()
.addComponent(jLabel2)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(name, javax.swing.GroupLayout.PREFERRED_SIZE, 334, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel2Layout.createSequentialGroup()
.addComponent(jLabel4)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(eng)))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel2Layout.createSequentialGroup()
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(ok)
.addGap(193, 193, 193))
);
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel2)
.addComponent(name, javax.swing.GroupLayout.PREFERRED_SIZE, 29, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, Short.MAX_VALUE)
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel3)
.addComponent(chi, javax.swing.GroupLayout.PREFERRED_SIZE, 29, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel4)
.addComponent(eng, javax.swing.GroupLayout.PREFERRED_SIZE, 29, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addComponent(ok)
.addGap(45, 45, 45))
);

jPanel3.setBackground(new java.awt.Color(255, 204, 102));

ans.setColumns(20);
ans.setRows(5);
jScrollPane1.setViewportView(ans);

javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);
jPanel3.setLayout(jPanel3Layout);
jPanel3Layout.setHorizontalGroup(
jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel3Layout.createSequentialGroup()
.addGap(41, 41, 41)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 390, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(36, Short.MAX_VALUE))
);
jPanel3Layout.setVerticalGroup(
jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel3Layout.createSequentialGroup()
.addContainerGap()
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(17, Short.MAX_VALUE))
);

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(73, 73, 73)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jPanel3, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jPanel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addContainerGap(28, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, 201, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jPanel3, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addContainerGap())
);

pack();
}// </editor-fold>
//if mouse clicked ,do this
private void okMouseClicked(java.awt.event.MouseEvent evt) {
// TODO add your handling code here:
String Name=name.getText(); //得到名字的TextField的字串
Integer Chinese=new Integer(chi.getText());//得到國文的TextField的字串，再轉為int
Integer English=new Integer(eng.getText());//得到數學的TextField的字串，再轉為int

student st=new student(Name,Chinese,English);//呼叫student的database，讓以上的資料存入資料庫

ans.setText(“姓名：”+st.getName()+
“\n國文：”+st.getChi()+
“\n英文：”+st.getEng()+
“\n總分：”+st.getSum()
);//將這個人的成績印在底下的TextArea(黃色部分)
}

/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate=”collapsed” desc=” Look and feel setting code (optional) “>
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if (“Nimbus”.equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(studentUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(studentUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(studentUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(studentUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>

/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new studentUI().setVisible(true);
}
});
}

// Variables declaration — do not modify
private javax.swing.JTextArea ans;
private javax.swing.JTextField chi;
private javax.swing.JTextField eng;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel2;
private javax.swing.JPanel jPanel3;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTextField name;
private javax.swing.JButton ok;
// End of variables declaration
}

  • 這是在Netbeans拉的的UI介面
  • 【特別注意】拉UI時記得要先拉JPanel
  • 當按下送出之後，姓名、成績會直接顯示在底下的黃色框框中
Java Programming
Java
Programming

--

--

Boom
BOOM ⭐ 程式自學之旅

Written by Boom

11 Followers
Editor for

Boom Engineer | BOOM ⭐ 程式自學之旅 | 透過筆記釋放記憶體，記錄自己的程式筆記，『內化』成為這段旅程的養分，也分享給路過，正在經歷這趟旅程的你 | Java note begin at 2020.09 | Python note begin at 2021.03

Help

Status

About

Careers

Press

Blog

Privacy

Terms

Text to speech

Teams