Java String equalsIgnoreCase() method is used to compare a string with the method argument object, ignoring case considerations..
In a Java program, you want to determine whether a String contains a case-insensitive regular expression (regex).

You can use java.util.regex.Pattern with the CASE_INSENSITIVE flag for case insensitive matching: Pattern.compile(Pattern.quote(wantedStr), Pattern.CASE_INSENSITIVE).matcher(source).find(); EDIT: If s2 contains regex special characters (of which there are many) it's important to quote it first.
The string.Contains() method in C# is case sensitive.

Whether the matching is exact or case insensitive depends on the ignoreCase argument. If you run the following tests, TestStringContains2() will fail.

Solution: Use the String matches method, and include the magic (?i:X) syntax to make your search case-insensitive. Yes, contains is case sensitive. Java String contains() method for case insensitive check. String contains - ignore case [duplicate] Ask Question Asked 7 years, 5 months ago.

Lets take an example to understand this: For case insensitive check, we can change both the strings to either upper case or lower case before calling the contents() method. You don't want to manipulate the String or extract the match, you just want to determine whether the pattern exists at least one time in the given String. We have seen above that the contains() method is case sensitive, however with a little trick, you can use this method for case insensitive checks.

In equalsIgnoreCase() method, two strings are considered equal if they are of the same length and corresponding characters in the two strings are equal ignoring case. ... Browse other questions tagged java string contains case-insensitive or ask your own question. Java String FAQ: How can I tell if a Java String contains a given regular expression (regex) pattern?

Problem: In a Java program, you want to determine whether a String contains a pattern, you want your search to be case-insensitive, and you want to use String matches method than use the Pattern and Matcher classes..

Java String contains() with case insensitive check. The Overflow Blog Steps Stack Overflow is taking to help fight racism. And there is not StringComparison parameter available similar to Equals() method, which helps to compare case insensitive.