The best replacement for jtextarea is jtextpane.

The best alternatives to jtextarea are rated as following:
★★★★★  jtextpane
★★★  textarea
★★  jeditorpane
★  jtextfield

Your alternative for jtextarea is not listed? Suggest!
Speaking about jtextarea, one probably shouldn't forget about jscrollpane.

Other search terms related to jtextarea and their ratings are:
★★★★★ jscrollpane
★★★★ colored text
You have in mind a companion for jtextarea and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of jtextarea in all years. Click on graph for more.
jtextarea
jtextpane
textarea