在插入位置的JTextArea中插入文本

Question

I would like to insert text into JTextArea at the current caret position how to do it? I have found only java script tutorials.

Answer 1

Using textarea.setText() ; will replace the whole content of your text. Instead of that, you have to use insert() method of your text object.

textarea.insert("My String Here", textarea.getCaretPosition());

You can get the caret position by textObject .getCaretPosition() and start adding your text from there.

I also found this useful: https://stackoverflow.com/a/5255666/2655623

to sum up:

textarea.replaceSelection("");
textarea.insert("My String Here", textarea.getCaretPosition());

Answer 2

Look at the method getCaretPosition() .

Returns the position of the text insertion caret for the text component.

Answer 3

使用getDocument().insertString而不是setText方法。

textarea.getDocument().insertString(textarea.getCaretPosition(), t, null);

Answer 4

You can do the following. First set the Caret position and the insert your text.

textarea.setCaretPosition(int posintion)
textarea.setText(yourData);