java - 如何在多个类中使用 JTextField

Question

如何在两个类中使用 JTextField。例如，从一个类获取整数值并将其显示在另一类的文本字段中。从 jFrame 到 JFrame

Answer 1

然后嵌套，这样你就有了一个类，该类在实际显示它的类中获取整数值，例如:

//Note: this is only a rough representation of the concept
//      what I am trying to get across, it wouldn't really
//      work like this

class Displayer{
    ValueGetter valueGetter;
    JTextField textField;

    public Displayer(){
        valueGetter = new ValueGetter();
    }

    public void display(){

        int value = valueGetter.workOutValue();

        textField.setText(value);
    }
}