java - 为什么我的 boolean 变量搞砸了？

Question

我声明了我的 boolean 变量，但它似乎做了与我想要的相反的事情。当我单击按钮时，当 boolean 变量为 false 时，它​​会自行删除。我怎样才能修复它，以便每当我单击“删除”按钮时都会将“deleteNow”变量变为 true？因为看起来deleteNow总是true。这是我的代码片段:

public class deleteButton
{
    public boolean deleteNow = false;

    class ClickListener implements ActionListener
    {
        public void actionPerformed(ActionEvent e)
        {
             deleteNow = true;
        }
    }
    ActionListener deleteButtonClicked = new ClickListener();
    deleteButton.addActionListener(deleteButtonClicked);

    class ClickListenerTwo implements ActionListener
    {
        public void actionPerformed(ActionEvent f)
        {
            if (deleteNow = true)
            {
                JButton buttonThatWasClicked = (JButton) e.getSource();
                Container parent = buttonThatWasClicked.getParent();
                parent.remove(buttonThatWasClicked);
                parent.revalidate();
                parent.repaint();
            }
            else
            { 
                System.out.println("The button wasn't deleted");
            }
        } 
    }

}

Answer 1

if (deleteNow = true)需要更改为if (deleteNow == true)

= 运算符将值 true 赋给变量，而 == 运算符仅执行比较。