在Java的JTextArea中附加文本

Question

I have a problem with my text area.

I use jTextArea1.append("cleverly amusing"); to add the text..

FIRST APPEND:

then I use jTextArea1.append("a fight"); to add the next text.

SECOND APPEND

What I Really want is to replace the "cleverly amusing" to "a fight". But I cannot do it. I tried to use the jTextArea1.removeAll(); but there's no effect. How can I remove the "cleverly amusing" so that I can append the "a fight" to the first line.

NOTE: "WORD HINT" is fixed...

What can I do?

Answer 1

If your JTextArea will only contain "WORD HINT: ..." then use the setText () method:

jTextArea1.setText("WORD HINT:\n" + word);

This will replace all the text with what you want.

BTW : removeAll () is part of the Container class, and is not to remove text but child components.

Answer 2

为什么不使用setText(String text)而不是append(String text) ？

Answer 3

而不是removeAll ，只需使用您想要的第一行调用setText() ，然后您可以根据需要附加其他数据。