“Control Properties” dengan Java Swing (NetBeans IDE 7.4)
Contoh sederhana event handler swing control seperti jScrollBar, jComboBox, buttonGroup, jRadioButton, jCheckBox1, jPanel, jButton.
Reverensi menggunaan editor NetBeans IDE 7.3 Sumber
1. Jalankan NetBeans IDE 7.4.
2. Klik File > New Project atau tekan tombol Ctrl+Shift+N pada keyboard.
3. Pada jendela New Project, pada bagian Categories pilih “Java”. Pada pilihan Project pilih “Java Application” kemudian klik tombol “Next >”.
4. Pada jendela New Java Application, Pada kotak isian Project Name: “ControlPropertiesApp”. Hilangkan pilihan Create Main Class. Kemudian klik tombol Finish.
5. Pada jendela Project, klik kanan ControlPropertiesApp pilih New > JFrame Form…
6. Pada jendela New JFrame Form, Pada kotak isian Class Name: “ControlPropertiesAppUI”. Pada kotak isian Package: “My.ControlPropertiesApp” kemudian klik tombol “Finish”
Setting Control Property:
| Object | Name | Properties | Setting |
| Form | jFrame | title | Control Properties |
| Label | jLabel1 | text | Type Your Name: |
| Text Field | jTextField1 | text | (Empty) |
| Text Field | jTextField2 | editable background font horizontal alignment text | False |
| Button | jButton1 | text | Show |
| Panel | jPanel1 | Border Title | Titled Border Background (RGB) |
| Scroll Bar | jScrollBar1 | maximum orientation visible amount | 255 HORIZONTAL 30 |
| Scroll Bar | jScrollBar1 | maximum orientation visible amount | 255 HORIZONTAL 30 |
| Scroll Bar | jScrollBar1 | maximum orientation visible amount | 255 HORIZONTAL 30 |
| Button | jButton2 | text | Exit |
| Panel | jPanel2 | Border Title | Titled Border Font Properties |
| Label | jLabel2 | text | Alignment: |
| Combo Box | jComboBox1 | ||
| Panel | jPanel3 | Border Title | Titled Border Color |
| Button Group | buttonGroup1 | ||
| Radio Button | jRadioButton1 | button Group text | buttonGroup1 Red |
| Radio Button | jRadioButton2 | button Group text | buttonGroup1 Green |
| Radio Button | jRadioButton3 | button Group text | buttonGroup1 Blue |
| Radio Button | jRadioButton4 | button Group text | buttonGroup1 Yellow |
| Panel | jPanel4 | Border text | Titled Border Style |
| Check Box | jCheckBox1 | text | Bold |
| Check Box | jCheckBox2 | text | Italic |
| Check Box | jCheckBox3 | text | Underline |
| Check Box | jCheckBox4 | text | Strikethrough |
Event Program:
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
System.exit(0);
}
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
ActionPerformed(evt);
}
private void formWindowOpened(java.awt.event.WindowEvent evt) {
String[] arrAlignment = {"Please choose one","Left Justify","Center"
,"Right Justify"};
jComboBox1.setModel(new javax.swing.DefaultComboBoxModel(arrAlignment));
}
private void jComboBox1ActionPerformed(java.awt.event.ActionEvent evt) {
switch (jComboBox1.getSelectedItem().toString()) {
case "Left Justify":
jTextField2.setHorizontalAlignment(JTextField.LEFT);
break;
case "Center":
jTextField2.setHorizontalAlignment(JTextField.CENTER);
break;
case "Right Justify":
jTextField2.setHorizontalAlignment(JTextField.RIGHT);
break;
}
}
private void jRadioButton1ActionPerformed(java.awt.event.ActionEvent evt) {
actionPerformed(evt);
}
private void jRadioButton2ActionPerformed(java.awt.event.ActionEvent evt) {
actionPerformed(evt);
}
private void jRadioButton3ActionPerformed(java.awt.event.ActionEvent evt) {
actionPerformed(evt);
}
private void jRadioButton4ActionPerformed(java.awt.event.ActionEvent evt) {
actionPerformed(evt);
}
private void jCheckBox1ItemStateChanged(java.awt.event.ItemEvent evt) {
itemStateChanged(evt);
}
private void jCheckBox2ItemStateChanged(java.awt.event.ItemEvent evt) {
itemStateChanged(evt);
}
private void jCheckBox3ItemStateChanged(java.awt.event.ItemEvent evt) {
itemStateChanged(evt);
}
private void jCheckBox4ItemStateChanged(java.awt.event.ItemEvent evt) {
itemStateChanged(evt);
}
private void jScrollBar1AdjustmentValueChanged(java.awt.event.AdjustmentEvent evt) {
adjustmentValueChanged(evt);
}
private void jScrollBar2AdjustmentValueChanged(java.awt.event.AdjustmentEvent evt) {
adjustmentValueChanged(evt);
}
private void jScrollBar3AdjustmentValueChanged(java.awt.event.AdjustmentEvent evt) {
adjustmentValueChanged(evt);
}
public void actionPerformed(ActionEvent e){
if(jRadioButton1.isSelected()){
jTextField2.setForeground(Color.red);
}else if(jRadioButton2.isSelected()){
jTextField2.setForeground(Color.green);
}else if(jRadioButton3.isSelected()){
jTextField2.setForeground(Color.blue);
}else if(jRadioButton4.isSelected()){
jTextField2.setForeground(Color.yellow);
}
}
public void itemStateChanged(ItemEvent e){
Object source = e.getItemSelectable();
if(source == jCheckBox1){
Font font;
font = new Font(jTextField2.getFont().getName(), Font.BOLD
, jTextField2.getFont().getSize());
jTextField2.setFont(font);
}else if(source == jCheckBox2){
Font font;
font = new Font(jTextField2.getFont().getName(), Font.ITALIC
, jTextField2.getFont().getSize());
jTextField2.setFont(font);
}else if(source == jCheckBox3){
Font font;
font = jTextField2.getFont();
Map attributes;
attributes = font.getAttributes();
attributes.put(TextAttribute.UNDERLINE, TextAttribute.UNDERLINE_ON);
jTextField2.setFont(font.deriveFont(attributes));
}else if(source == jCheckBox4){
Font font;
font = jTextField2.getFont();
Map attributes = font.getAttributes();
attributes.put(TextAttribute.STRIKETHROUGH
, TextAttribute.STRIKETHROUGH_ON);
jTextField2.setFont(font.deriveFont(attributes));
}
if(e.getStateChange()== ItemEvent.DESELECTED){
Font font;
font = new Font(jTextField2.getFont().getName(), Font.PLAIN
, jTextField2.getFont().getSize());
jTextField2.setFont(font);
}
if(source == jCheckBox1 && source == jCheckBox2){
Font font;
font = new Font(jTextField2.getFont().getName(), Font.BOLD
+ Font.ITALIC, jTextField2.getFont().getSize());
jTextField2.setFont(font);
}
}
public void adjustmentValueChanged(AdjustmentEvent e){
if(e.getSource()==jScrollBar1){
jScrollBar1.getValue();
}else if(e.getSource()==jScrollBar2){
jScrollBar2.getValue();
}else if(e.getSource()==jScrollBar3){
jScrollBar3.getValue();
}
this.getContentPane().setBackground(new Color(jScrollBar1.getValue()
,jScrollBar2.getValue(),jScrollBar3.getValue()));
jPanel1.setBackground(new Color(jScrollBar1.getValue()
,jScrollBar2.getValue(),jScrollBar3.getValue()));
jPanel2.setBackground(new Color(jScrollBar1.getValue()
,jScrollBar2.getValue(),jScrollBar3.getValue()));
jPanel3.setBackground(new Color(jScrollBar1.getValue()
,jScrollBar2.getValue(),jScrollBar3.getValue()));
jPanel4.setBackground(new Color(jScrollBar1.getValue()
,jScrollBar2.getValue(),jScrollBar3.getValue()));
}
public void ActionPerformed(ActionEvent e){
Object source = e.getSource();
if(source instanceof JButton){
switch (e.getActionCommand()) {
case "Show":
jButton1.setText("New");
jTextField2.setText(jTextField1.getText());
jTextField1.setEditable(false);
jTextField1.setBackground(Color.white);
break;
case "New":
jButton1.setText("Show");
jTextField1.setEditable(true);
jTextField1.setText("");
jTextField2.setText("");
jComboBox1.setSelectedIndex(0);
jTextField2.setHorizontalAlignment(JTextField.CENTER);
buttonGroup1.clearSelection();
jCheckBox1.setSelected(false);
jCheckBox2.setSelected(false);
jCheckBox3.setSelected(false);
jCheckBox4.setSelected(false);
jTextField1.grabFocus();
break;
}
}
}
7. Jalankan Project, pada ToolBar klik tombol Run Project atau klik F6 pada keyboard
8. Pada jendela Run Project klik tombol OK untuk menjadikan ControlPropertiesAppUI menjadi main class.
Label: Java SE
diposting oleh Guntur Nitiputra @ 00.22.00
0 Komentar
0 Komentar:
Posting Komentar
Berlangganan Posting Komentar [Atom]
<< Beranda