突出显示textarea中的句子

问题描述

我必须编写一个程序，我必须在JTextarea中突出显示该句子。
我有一个名为原始文件和摘要文件的文件。原始文件将显示在textarea框中，我必须在textarea框中突出显示摘要文件的所有句子。

I have to write a program in which i have to highlight the sentence in JTextarea.I have one file called original file and summary file. Original file will be displayed in textarea box and i have to highlight all the sentences of a summary file in textarea box.

例如。如果原始文件包含Tendulkar出生在孟买（现孟买）。他的母亲Rajni在保险业工作，他的父亲Ramesh Tendulkar，一位马拉地语小说家，在他最喜欢的音乐总监Sachin Dev Burman之后命名为Tendulkar.Tendulkar's哥哥Ajit鼓励他打板球.Tendulkar还有另外两个兄弟姐妹：兄弟Nitin和妹妹Savita。

For example. If original file contains "Tendulkar was born in Bombay (now Mumbai). His mother Rajni worked in the insurance industry,and his father Ramesh Tendulkar, a Marathi novelist, named Tendulkar after his favourite music director, Sachin Dev Burman. Tendulkar's elder brother Ajit encouraged him to play cricket. Tendulkar has two other siblings: a brother Nitin, and sister Savita."

上面的文字显示在textarea中。

Above text is displayed in textarea.

在摘要文件中我有Tendulkar出生在孟买（现孟买）.Tendulkar还有另外两个兄弟姐妹：兄弟Nitin和妹妹Savita。 / strong>

In summary file i have "Tendulkar was born in Bombay (now Mumbai). Tendulkar has two other siblings: a brother Nitin, and sister Savita."

我想在textarea中突出显示这些句子。请有人能告诉我该怎么做？
提前谢谢：）

I want these sentences to be highlighted in textarea. Please can anyone tell me how can i do this?Thank you in advance :)

推荐答案

您可以使用：

You can use a Highlighter:

Highlighter h = textArea.getHighlighter();
h.removeAllHighlights();
int pos = originalText.indexOf(summaryText, 0);
h.addHighlight(pos ,
               pos  + summaryText.Length,
               DefaultHighlighter.DefaultPainter);

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