![]() Java provides the package for pattern matching with regular expressions. They can be used to search, edit, or manipulate text and data. We can accomplish this easily with replaceAll() method. It takes two parameters:Ī regular expression: A regular expression is a sequence of characters that is used to denote a search pattern in the given string. Lets take an example where we want to replace all occurrences of String with another string. The replaceAll() in java is the method present in the String class. Now, what if the above problem occurs with the java string? Well in such cases we can use the replaceall() in java. We know that in java, the text items are taken input as strings. ![]() But it will take a lot of time, right? To tackle this, most text editors have a feature to replace all the occurrences of a word with another word. Now we can individually check all the words and replace them. Imagine we are writing an article on java, and after the completion of the article, someone tells us to replace all the words ' java' with ' Java'. In the above example, all the occurrences of the character i i i are replaced by the character z z z.
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