我想改變JMenuBar和JToolBar的背景顏色。爲此,我嘗試過但沒有工作。我遵循了某些網站提供的解決方案。但是,這些也不能正常工作。如何更改JMenuBar和JToolBar的背景顏色?
這裏是我的代碼:
import java.awt.Color;
public class JFrameDemo extends javax.swing.JFrame {
public JFrameDemo() {
Color b=new Color(0,150,255);
initComponents();
menuBar.setForeground(Color.GREEN);
toolbar.setBackground(b);
}
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
toolbar = new javax.swing.JToolBar();
close = new javax.swing.JButton();
open = new javax.swing.JButton();
menuBar = new javax.swing.JMenuBar();
jMenu3 = new javax.swing.JMenu();
jMenu4 = new javax.swing.JMenu();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
toolbar.setRollover(true);
close.setText("close");
close.setFocusable(false);
close.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);
close.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM);
toolbar.add(close);
open.setText("open");
open.setFocusable(false);
open.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);
open.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM);
toolbar.add(open);
menuBar.setBackground(new java.awt.Color(51, 51, 255));
jMenu3.setText("File");
menuBar.add(jMenu3);
jMenu4.setText("Edit");
menuBar.add(jMenu4);
setJMenuBar(menuBar);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(toolbar, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 400, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(toolbar, javax.swing.GroupLayout.PREFERRED_SIZE, 25, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(0, 306, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
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(JFrameDemo.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(JFrameDemo.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(JFrameDemo.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(JFrameDemo.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
// ImageIcon img = new ImageIcon("C:\\Icons\book-edit-icon.png");
JFrameDemo fdemo=new JFrameDemo();
fdemo.setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton close;
private javax.swing.JMenu jMenu3;
private javax.swing.JMenu jMenu4;
private javax.swing.JMenuBar menuBar;
private javax.swing.JButton open;
private javax.swing.JToolBar toolbar;
// End of variables declaration
}
你什麼意思 '不能正常工作' 呢? – robzillaDev
設置一個不錯的[標籤:外觀]。 –
提示:添加@robzillaDev(或者,'@'是重要的)* *通知*新的評論的人。 –