如何通过按下JButton将文本从一个JTextField添加到另一个

Question

I am creating a applet in java where the user enters some data into four different four different text fields, clicks a button, and the data is taken from those fields and stored in a text field next to it.

I have a button made, and it implements ActionListener, just not sure how to get the text from the four fields into the one field together.

Answer 1

Try this.

tf1.setText(tf2.getText());

OR When you want to merge values from all textfields into one.

tf1.setText(tf1.getText() + tf2.getText() + tf3.getText() + tf4.getText());

Answer 2

just not sure how to get the text from the four fields into the one field together.

JTextField has a getText() method. So you would invoke that method on the 4 different text field to get the String value from each text field.

JTextField also has a setText() method. So you would combine the 4 strings into one and set the text of the 5th text field.