我正在製作地址簿,我希望用戶能夠對其聯繫人進行顏色編碼[例如,所有'朋友'都以藍色字體打印,所有家庭都是綠色等]我添加了複選框,並添加了動作偵聽器。但是,我收到一個編譯錯誤。通過JCheckBox更改文本字段輸入的字體顏色
friend = new JCheckBox("Friend");
coWorker = new JCheckBox("Business");
family = new JCheckBox("Family");
miscellaneous = new JCheckBox("Miscellaneous");
jPanel4.add(friend);
jPanel4.add(coWorker);
jPanel4.add(family);
jPanel4.add(miscellaneous);
HandlerClass handler = new HandlerClass();
friend.addItemListener(handler);
coWorker.addItemListener(handler);
family.addItemListener(handler);
miscellaneous.addItemListener(handler);
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
AddressBookMain.addEntry(new AddressBook(jTextField1.getText(), jTextField2.getText(), jTextField3.getText(), jTextField4.getText()));
}
});
`private class HandlerClass implements ItemListener {
public void itemStateChanged(ItemEvent event) {
jTextField1.setFont(Color.BLUE);
}
}`
你會得到什麼彙編錯誤? – Kaj 2011-05-08 18:00:15