java - JTextArea - 如何在指定偏移处设置文本？

Question

我想在我的 JTextArea 中的指定偏移处设置一些文本。假设我已经在我的编辑 "aaa bbb" 中，我想用 "house"覆盖 "bbb"，我如何在 Java 中做到这一点？

Answer 1

你可以使用 replaceRange()

public void replaceRange(String str,
int start,
int end)

Replaces text from the indicated start to end position with the new text specified. Does nothing if the model is null. Simply does a delete if the new string is null or empty.

This method is thread safe, although most Swing methods are not. Please see Threads and Swing for more information.