CODEWITHSUNDEEP
javapattern-matchingmatch
Valli Pichappan
Valli Pichappan

Reputation: 21

Alternative for matches() in Java

In SQL, we have pattern matching operator like with "_" and "%" to search for a string, or a part of a string.
Is there anything similar to that in Java.
There is the matches() method. However, that only returns true if the entire String matches the regex.
I need a method that can evaluate if a given String exists in another String as a part of it.

Upvotes: 0

Views: 2727

Answers (3)

Giuseppe Vitale
Giuseppe Vitale

Reputation: 1

You can use String.Contains()

Example:

  public static void main(String[] args)
  {
    String s = "Hello World";

    System.out.print(s.contains("Wor")); //return true
    System.out.print(s.contains("wor")); //return false beacuse is case-sensitive
  }

Upvotes: 0

Nicola Pellicanò
Nicola Pellicanò

Reputation: 469

contains is not usable if you need to perform regex matching.

You can trick the matches() method to behave as you expect, just saying that you want whatever sequence of character at start and end of the string.

Nice solution is to use matcher.find() which looks for occurrences of the regex. Look at class Matcher.

Upvotes: 1

Norbert
Norbert

Reputation: 1462

Check the contains method of the String class:

https://docs.oracle.com/javase/8/docs/api/java/lang/String.html#contains(java.lang.CharSequence)

Upvotes: 2

Related Questions