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Does string match regex?

Does string match regex?

Java – String matches() Method matches(regex) yields exactly the same result as the expression Pattern.

How do you check if a string contains a substring regex?

String indexOf() Method The most common (and perhaps the fastest) way to check if a string contains a substring is to use the indexOf() method. This method returns the index of the first occurrence of the substring. If the string does not contain the given substring, it returns -1.

How do you check if a string contains a pattern?

Java: Check if String Contains a Substring

  1. Note: The . contains() method is case sensitive.
  2. Note: This method is case-sensitive.
  3. Note: Not all of the characters from the sequence need to be used in the string for the method to return true.

How do I search for a word in a regular expression?

Find/Replace with Regular Expression (Regex) or Wildcards. Word supports find/replace with it own variation of regular expressions (regex), which is called wildcards. To use regex: Ctrl-H (Find/Replace) ⇒ Check “Use wildcards” option under “More”.

How do you check if a string does not contain a substring?

To check if a string doesn’t include a substring, call to the indexOf() method on the string, passing it the substring as a parameter. If the indexOf method returns -1 , then the substring is not contained in the string.

How do you use contains method?

The contains() method accepts one parameter: the sequence of characters for which you want to search in your string. contains() can return two possible values. If the string you have specified contains a substring, the contains() method returns true; otherwise, contains() returns false.

Can I use regex in Includes?

It doesn’t work with regex. It will check whether the exact String specified appear in the current String or not. Note that String. contains does not check for word boundary; it simply checks for substring.