Размещение элементов в проекте - Java
Формулировка задачи:
Добрый вечер. Столкнулся с проблемой размещения элементов. Как поместить на проекте 3 элемента Label друг на друга?
И еще вопрос. Задача состоит в том, чтобы при выборе в поле из списка одного из элементов появлялась определенная картинка. В методичке указано сделать через Label в свойствах icon присвоить адрес картинки. С RadioButton это получилось, но разместить друг на друга картинки не могу. А как в поле со списком это сделать?
В данный момент код такой:
Листинг программы
- package image;
- public class ImageBrowser extends javax.swing.JFrame {
- public ImageBrowser() {
- initComponents();
- jLabel1.setVisible(false);
- jLabel2.setVisible(false);
- }
- @SuppressWarnings("unchecked")
- // <editor-fold defaultstate="collapsed" desc="Generated Code">
- private void initComponents() {
- buttonGroup1 = new javax.swing.ButtonGroup();
- jRadioButton1 = new javax.swing.JRadioButton();
- jRadioButton2 = new javax.swing.JRadioButton();
- jRadioButton3 = new javax.swing.JRadioButton();
- jButton1 = new javax.swing.JButton();
- jLabel1 = new javax.swing.JLabel();
- jLabel2 = new javax.swing.JLabel();
- jScrollPane1 = new javax.swing.JScrollPane();
- jList1 = new javax.swing.JList<>();
- jComboBox1 = new javax.swing.JComboBox<>();
- setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
- buttonGroup1.add(jRadioButton1);
- jRadioButton1.setText("Картинка 1");
- jRadioButton1.addActionListener(new java.awt.event.ActionListener() {
- public void actionPerformed(java.awt.event.ActionEvent evt) {
- jRadioButton1ActionPerformed(evt);
- }
- });
- buttonGroup1.add(jRadioButton2);
- jRadioButton2.setText("Картинка 2");
- jRadioButton2.addActionListener(new java.awt.event.ActionListener() {
- public void actionPerformed(java.awt.event.ActionEvent evt) {
- jRadioButton2ActionPerformed(evt);
- }
- });
- buttonGroup1.add(jRadioButton3);
- jRadioButton3.setText("Спрятать");
- jRadioButton3.addActionListener(new java.awt.event.ActionListener() {
- public void actionPerformed(java.awt.event.ActionEvent evt) {
- jRadioButton3ActionPerformed(evt);
- }
- });
- jButton1.setText("Выход");
- jButton1.addActionListener(new java.awt.event.ActionListener() {
- public void actionPerformed(java.awt.event.ActionEvent evt) {
- jButton1ActionPerformed(evt);
- }
- });
- jLabel1.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
- jLabel1.setIcon(new javax.swing.ImageIcon("C:\\Users\\Максим\\Documents\\NetBeansProjects\\Image\\src\\image\\resources\\file.jpg")); // NOI18N
- jLabel2.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
- jLabel2.setIcon(new javax.swing.ImageIcon("C:\\Users\\Максим\\Documents\\NetBeansProjects\\Image\\src\\image\\resources\\idol_3_obzor_30_resize.jpg")); // NOI18N
- jLabel2.setLabelFor(jLabel1);
- jLabel2.setToolTipText("");
- jList1.setModel(new javax.swing.AbstractListModel<String>() {
- String[] strings = { "Картинка 1", "Картинка 2" };
- public int getSize() { return strings.length; }
- public String getElementAt(int i) { return strings[i]; }
- });
- jScrollPane1.setViewportView(jList1);
- jComboBox1.setModel(new javax.swing.DefaultComboBoxModel<>(new String[] { "Картинка 1", "Картинка 2", " " }));
- jComboBox1.addActionListener(new java.awt.event.ActionListener() {
- public void actionPerformed(java.awt.event.ActionEvent evt) {
- jComboBox1ActionPerformed(evt);
- }
- });
- javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
- getContentPane().setLayout(layout);
- layout.setHorizontalGroup(
- layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
- .addGroup(layout.createSequentialGroup()
- .addContainerGap()
- .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
- .addGroup(layout.createSequentialGroup()
- .addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, 284, javax.swing.GroupLayout.PREFERRED_SIZE)
- .addGap(0, 0, Short.MAX_VALUE))
- .addGroup(layout.createSequentialGroup()
- .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
- .addComponent(jLabel2, javax.swing.GroupLayout.PREFERRED_SIZE, 723, javax.swing.GroupLayout.PREFERRED_SIZE)
- .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 723, javax.swing.GroupLayout.PREFERRED_SIZE))
- .addGap(18, 18, 18)
- .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
- .addGroup(layout.createSequentialGroup()
- .addGap(0, 1, Short.MAX_VALUE)
- .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
- .addGroup(layout.createSequentialGroup()
- .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
- .addComponent(jRadioButton2)
- .addComponent(jRadioButton1)
- .addComponent(jButton1))
- .addGap(36, 36, 36))
- .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
- .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 98, javax.swing.GroupLayout.PREFERRED_SIZE)
- .addContainerGap())))
- .addGroup(layout.createSequentialGroup()
- .addComponent(jRadioButton3)
- .addGap(0, 0, Short.MAX_VALUE))))))
- );
- layout.setVerticalGroup(
- layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
- .addGroup(layout.createSequentialGroup()
- .addContainerGap()
- .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
- .addGroup(layout.createSequentialGroup()
- .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 29, javax.swing.GroupLayout.PREFERRED_SIZE)
- .addGap(154, 154, 154)
- .addComponent(jRadioButton1)
- .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
- .addComponent(jRadioButton2)
- .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
- .addComponent(jRadioButton3)
- .addGap(98, 98, 98)
- .addComponent(jButton1)
- .addContainerGap(279, Short.MAX_VALUE))
- .addGroup(layout.createSequentialGroup()
- .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
- .addComponent(jLabel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
- .addComponent(jLabel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
- .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
- .addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
- .addGap(63, 63, 63))))
- );
- pack();
- }// </editor-fold>
- private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
- System.exit(0); // TODO add your handling code here:
- }
- private void jRadioButton1ActionPerformed(java.awt.event.ActionEvent evt) {
- jLabel1.setVisible(true);
- jLabel2.setVisible(false);
- jLabel3.setVisible(false); // Еще не добавлен в проект
- }
- private void jRadioButton2ActionPerformed(java.awt.event.ActionEvent evt) {
- jLabel2.setVisible(true);
- jLabel1.setVisible(false);
- jLabel3.setVisible(false); // Еще не добавлен в проект
- }
- private void jRadioButton3ActionPerformed(java.awt.event.ActionEvent evt) {
- jLabel1.setVisible(false);
- jLabel2.setVisible(false);
- jLabel3.setVisible(false);// Еще не добавлен в проект
- }
- private void jComboBox1ActionPerformed(java.awt.event.ActionEvent evt) {
- // TODO add your handling code here:
- }
- public static void main(String args[]) {
- 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(ImageBrowser.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
- } catch (InstantiationException ex) {
- java.util.logging.Logger.getLogger(ImageBrowser.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
- } catch (IllegalAccessException ex) {
- java.util.logging.Logger.getLogger(ImageBrowser.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
- } catch (javax.swing.UnsupportedLookAndFeelException ex) {
- java.util.logging.Logger.getLogger(ImageBrowser.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 ImageBrowser().setVisible(true);
- }
- });
- }
- // Variables declaration - do not modify
- private javax.swing.ButtonGroup buttonGroup1;
- private javax.swing.JButton jButton1;
- private javax.swing.JComboBox<String> jComboBox1;
- private javax.swing.JLabel jLabel1;
- private javax.swing.JLabel jLabel2;
- private javax.swing.JList<String> jList1;
- private javax.swing.JRadioButton jRadioButton1;
- private javax.swing.JRadioButton jRadioButton2;
- private javax.swing.JRadioButton jRadioButton3;
- private javax.swing.JScrollPane jScrollPane1;
- // End of variables declaration
- }
Решение задачи: «Размещение элементов в проекте»
textual
Листинг программы
- jComboBox1.addActionListener(new java.awt.event.ActionListener() {
- public void actionPerformed(java.awt.event.ActionEvent evt) {
- String str = (String)jComboBox1.getSelectedItem();
- if(str.equals("Картинка 1")){
- jRadioButton1ActionPerformed(evt);
- }else{
- jRadioButton2ActionPerformed(evt);
- }
- //jComboBox1ActionPerformed(evt);
- }
- });
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