cara membuat biodata menggunakan GUI

- Langkah awal kalian harus megklik Text Field, Text Area, Combo Box, dan Button satu per-satu tidak boleh berbarengan.

- Setelah itu klik kanan pada Text Field, Text Area, Combo Box, dan Button.

- Setelah itu klik Change Variable Name...

- Lalu ubah menjadi

TextArea1 : no

TextArea2 : nama 

TextArea3 : alamat

Combo Box : jeniskelamin/ jenis_kelamin (tidak boleh menggunakan spasi, jdi pengganti spasi adalah garis bawah seperti contoh disamping).

TextArea4 : tangal_lahir

Button1 : bersih

Button2 : proses

Button3 : keluar

setelah itu baru masuk kodingan

1. /*
2. * To change this license header, choose License Headers in Project Properties.
3. * To change this template file, choose Tools | Templates
4. * and open the template in the editor.
5. */
6. package biodata_siswa;
7. 
   
8. /**
9. *
10. * @author Rei Fandi
11.  */
12. public class projectbiodata extends javax.swing.JFrame {
13. 
    
14. /**
15.   * Creates new form projectbiodata
16. */
17. public projectbiodata() {
18. initComponents();
19. 
    
20. }
21. 
    
22. /**
23. * This method is called from within the constructor to initialize the form.
24. * WARNING: Do NOT modify this code. The content of this method is always
25. * regenerated by the Form Editor.
26. */
27. @SuppressWarnings("unchecked")
28. // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
29. private void initComponents() {
30.         jButton3 = new javax.swing.JButton();
31.         jLabel1 = new javax.swing.JLabel();
32.         jLabel2 = new javax.swing.JLabel();
33.         jLabel3 = new javax.swing.JLabel();
34.         jLabel4 = new javax.swing.JLabel();
35.         no = new javax.swing.JTextField();
36.         nama = new javax.swing.JTextField();
37.         alamat = new javax.swing.JTextField();
38.         jLabel5 = new javax.swing.JLabel();
39.         jScrollPane1 = new javax.swing.JScrollPane();
40.         biodata = new javax.swing.JTextArea();
41.         Proses = new javax.swing.JButton();
42.         keluar = new javax.swing.JButton();
43.         bersih = new javax.swing.JButton();
44.         jLabel6 = new javax.swing.JLabel();
45.         tanggal = new javax.swing.JTextField();
46.         jenis = new javax.swing.JComboBox<>();
47. 
    
48.         jButton3.setText("jButton3");
49. 
    
50.         setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
51.         setName("jenis kelamin"); // NOI18N
52. 
    
53.         jLabel1.setText("Biodata Siswa SMK MANDALAHAYU");
54. 
    
55.         jLabel2.setText("No.Siswa :");
56. 
    
57.         jLabel3.setText("Nama Siswa :");
58. 
    
59.         jLabel4.setText("Jenis Kelamin :");
60. 
    
61.         nama.addActionListener(new java.awt.event.ActionListener() {
62.             public void actionPerformed(java.awt.event.ActionEvent evt) {
63.                 namaActionPerformed(evt);
64.             }
65.         });
66. 
    
67.         jLabel5.setText("Alamat Siswa :");
68. 
    
69.         biodata.setColumns(20);
70.         biodata.setRows(5);
71.         jScrollPane1.setViewportView(biodata);
72. 
    
73.         Proses.setText("Proses");
74.         Proses.addActionListener(new java.awt.event.ActionListener() {
75.             public void actionPerformed(java.awt.event.ActionEvent evt) {
76.                 ProsesActionPerformed(evt);
77.             }
78.         });
79. 
    
80.         keluar.setText("Keluar");
81.         keluar.addActionListener(new java.awt.event.ActionListener() {
82.             public void actionPerformed(java.awt.event.ActionEvent evt) {
83.                 keluarActionPerformed(evt);
84.             }
85.         });
86. 
    
87.         bersih.setText("Bersih");
88.         bersih.addActionListener(new java.awt.event.ActionListener() {
89.             public void actionPerformed(java.awt.event.ActionEvent evt) {
90.                 bersihActionPerformed(evt);
91.             }
92.         });
93. 
    
94.         jLabel6.setText("Tanggal Lahir :");
95. 
    
96.         jenis.setModel(new javax.swing.DefaultComboBoxModel<>(new String[] { "Laki-Laki", "Perempuan" }));
97.         jenis.addActionListener(new java.awt.event.ActionListener() {
98.             public void actionPerformed(java.awt.event.ActionEvent evt) {
99.                 jenisActionPerformed(evt);
100.             }
101.         });
102. 
     
103.         javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
104.         getContentPane().setLayout(layout);
105.         layout.setHorizontalGroup(
106.             layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
107.             .addGroup(layout.createSequentialGroup()
108.                 .addGap(127, 127, 127)
109.                 .addComponent(jLabel1)
110.                 .addGap(0, 0, Short.MAX_VALUE))
111.             .addGroup(layout.createSequentialGroup()
112.                 .addGap(24, 24, 24)
113.                 .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
114.                     .addGroup(layout.createSequentialGroup()
115.                         .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
116.                             .addComponent(jLabel6, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 75, Short.MAX_VALUE)
117.                             .addComponent(jLabel2, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.PREFERRED_SIZE, 65, javax.swing.GroupLayout.PREFERRED_SIZE)
118.                             .addComponent(jLabel3, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
119.                             .addComponent(jLabel4, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
120.                             .addComponent(jLabel5, javax.swing.GroupLayout.Alignment.LEADING))
121.                         .addGap(18, 18, 18)
122.                         .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
123.                             .addComponent(nama)
124.                             .addComponent(alamat)
125.                             .addComponent(no)
126.                             .addComponent(tanggal)
127.                             .addComponent(jenis, 0, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
128.                         .addGap(10, 10, 10)
129.                         .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
130.                         .addGap(28, 28, 28))
131.                     .addGroup(layout.createSequentialGroup()
132.                         .addComponent(bersih)
133.                         .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
134.                         .addComponent(Proses)
135.                         .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
136.                         .addComponent(keluar)
137.                         .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))))
138.         );
139.         layout.setVerticalGroup(
140.             layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
141.             .addGroup(layout.createSequentialGroup()
142.                 .addContainerGap()
143.                 .addComponent(jLabel1)
144.                 .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
145.                 .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
146.                     .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
147.                     .addGroup(layout.createSequentialGroup()
148.                         .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
149.                             .addComponent(jLabel2)
150.                             .addComponent(no, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
151.                         .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
152.                         .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
153.                             .addComponent(jLabel3)
154.                             .addComponent(nama, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
155.                         .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
156.                         .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
157.                             .addComponent(jLabel5)
158.                             .addComponent(alamat, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
159.                         .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
160.                         .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
161.                             .addComponent(jLabel4)
162.                             .addComponent(jenis, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))))
163.                 .addGap(18, 18, 18)
164.                 .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
165.                     .addComponent(jLabel6)
166.                     .addComponent(tanggal, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
167.                 .addGap(46, 46, 46)
168.                 .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
169.                     .addComponent(bersih)
170.                     .addComponent(Proses)
171.                     .addComponent(keluar))
172.                 .addContainerGap(44, Short.MAX_VALUE))
173.         );
174. 
     
175.         pack();
176.     }// </editor-fold>                        
177. 
     
178.     private void ProsesActionPerformed(java.awt.event.ActionEvent evt) {                                       
179.         // TODO add your handling code here:
180.         biodata(nama text area kalian tdi).setText("\n no \t: "+no(nama text filed kalian).getText()+"\n nama siswa(nama text filed kalian) \t: "+nama.getText()
181.                 +"\n Jenis Kelamin(nama combo box kalian) \t: "+ jenis.getSelectedItem()
182.                 +"\n Alamat : "+ alamat(nama text filed kalian).getText()
183.                 +"\n Tanggal Lahir : "+ tanggal(nama text filed kalian).getText());
184.     }                                      
185. 
     
186.     private void keluarActionPerformed(java.awt.event.ActionEvent evt) {                                       
187.         // TODO add your handling code here:
188.         System.exit(0);
189.     }                                      
190. 
     
191.     private void bersihActionPerformed(java.awt.event.ActionEvent evt) {                                       
192.         // TODO add your handling code here:
193.         nama.setText("");
194.         no.setText("");
195.         tanggal.setText("");
196.         alamat.setText("");
197.         biodata.setText("");
198.     }                                      
199. 
     
200.     /**
201.      * @param args the command line arguments
202.      */
203.     public static void main(String args[]) {
204.         /* Set the Nimbus look and feel */
205.         //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
206.         /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
207.          * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
208.          */
209.         try {
210.             for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
211.                 if ("Nimbus".equals(info.getName())) {
212.                     javax.swing.UIManager.setLookAndFeel(info.getClassName());
213.                     break;
214.                 }
215.             }
216.         } catch (ClassNotFoundException ex) {
217.             java.util.logging.Logger.getLogger(projectbiodata.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
218.         } catch (InstantiationException ex) {
219.             java.util.logging.Logger.getLogger(projectbiodata.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
220.         } catch (IllegalAccessException ex) {
221.             java.util.logging.Logger.getLogger(projectbiodata.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
222.         } catch (javax.swing.UnsupportedLookAndFeelException ex) {
223.             java.util.logging.Logger.getLogger(projectbiodata.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
224.         }
225.         //</editor-fold>
226. 
     
227.         /* Create and display the form */
228.         java.awt.EventQueue.invokeLater(new Runnable() {
229.             public void run() {
230.                 new projectbiodata().setVisible(true);
231.             }
232.         });
233.     }
234. 
     
235.     // Variables declaration - do not modify                     
236.     private javax.swing.JButton Proses;
237.     private javax.swing.JTextField alamat;
238.     private javax.swing.JButton bersih;
239.     private javax.swing.JTextArea biodata;
240.     private javax.swing.JButton jButton3;
241.     private javax.swing.JLabel jLabel1;
242.     private javax.swing.JLabel jLabel2;
243.     private javax.swing.JLabel jLabel3;
244.     private javax.swing.JLabel jLabel4;
245.     private javax.swing.JLabel jLabel5;
246.     private javax.swing.JLabel jLabel6;
247.     private javax.swing.JScrollPane jScrollPane1;
248.     private javax.swing.JComboBox<String> jenis;
249.     private javax.swing.JButton keluar;
250.     private javax.swing.JTextField nama;
251.     private javax.swing.JTextField no;
252.     private javax.swing.JTextField tanggal;
253.     // End of variables declaration                   
254. }

Keterangan : Sebenarnya nomer 30 - 177 itu tidak terlalu penting jadi kalian tidak usah pusing mengapa kaya gini dan seperti ini, karena nomer 30 - 177 itu termasuk data desaign yang tadi kita buat. Tetapi jikalau kalian ingin memahaminya lebih lanjut tidak apa-apa....intinya buat belajar :)