How to Extract Text After a Regex Match Using Lookbehind Assertions?

Retrieving Text after Regex Match

In your quest to use Regex effectively, you've encountered a challenge: extracting text following a matched pattern. Let's delve into the solution.

Your original Regex pattern, "sentence(.*)", nearly accomplishes your goal. However, it indiscriminately captures both the matched string ("sentence") and the subsequent text. To amend this, we need to introduce a concept known as a "lookbehind assertion."

Using a Lookbehind Assertion

A positive lookbehind assertion (?

(?<p>This pattern reads as "Match zero or more characters after a position where 'sentence' immediately precedes it." Thus, it successfully extracts the desired text.</p><p><strong>Implementing in Java</strong></p><p>To implement this in Java, you can modify your code as follows:</p><pre class="brush:php;toolbar:false">Pattern pattern = Pattern.compile("(?<p>Now, when the Regex is applied to the input string, it will only match and print the text following "sentence":</p><pre class="brush:php;toolbar:false">I found the text: that is awesome

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