小编use*_*531的帖子

我正在尝试添加ActionListener一个JTextField并将该文本字段作为动作侦听器本身.每当我这样做,我都会收到错误,说

The method addActionListener(ActionListener) in the type JTextField is not applicable for the arguments (JTextField)

码

String strBox1;

JTextField textBox1, textBox2, textBox3;

JTextArea textArea1, displayArea;

public textBoxes()
{       

    setLayout (new GridLayout(10,2));

    JLabel query1 = new JLabel("Daily Savings:");
    add(query1);
    textBox1 = new JTextField("Dsave", 5);
    add(textBox1);
    textBox1.addActionListener(textBox1);
    //textBox1.getDocument().addDocumentListener(new MyDocumentListener());

    JLabel query2 = new JLabel("Current Age:");
    add(query2);
    textBox2 = new JTextField("Cage", 5);
    add(textBox2);

    JLabel query3 = new JLabel("Initial Savings amount:");
    add(query3);
    textBox3 = new JTextField("ISA", 5);
    add(textBox3);

    JLabel query4 …