java - Appending text in Java's JTextArea

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

如果您的 JTextArea 将仅包含“WORD HINT: ...”，则使用setText () 方法：

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

这将用您想要的内容替换所有文本。

BTW : removeAll () 是 Container 类的一部分，不是删除文本而是删除子组件。

Answer 2

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

Answer 3

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