e980. creating a password jtextfield component.txt

来自「这里面包含了一百多个JAVA源文件」· 文本 代码 · 共 6 行

When the user hits RETURN, the text field fires an action event. 
    JPasswordField textfield = new JPasswordField("Initial Text");
    textfield.setEchoChar('#');
    textfield.addActionListener(actionListener);