Search for String case-insensitive

Question

I want to search for any name in a text file. For example, the name is written as Emily in the text file.

If the user types "emily" or "EmiLY" the code should find the name Emily.

I need this code below to be case-insensitive. Right now it searches for Emily but not emily

(search.startsWith(name) && search.endsWith(name))

one trick is before matching change both string to either upper or lower case and this will act like case-insensitive check — Laxmikant, Jul 30 '18 at 18:02
if i change the user input to all lowercase "emily" or all uppercase "EMILY", how will it find "Emily"? — cscontrol, Jul 30 '18 at 18:20
Possible duplicate of [How to check if a String contains another String in a case insensitive manner in Java?](https://stackoverflow.com/questions/86780/how-to-check-if-a-string-contains-another-string-in-a-case-insensitive-manner-in) — Silvio Mayolo, Jul 30 '18 at 18:43
When you ask a question, please remember to add the language (Java) as a tag. Also review [how to format code](https://stackoverflow.com/editing-help#code). — JJJ, Jul 30 '18 at 18:45

score 1 · Accepted Answer · answered Jul 30 '18 at 18:45

If you really need to use the code you posted, you just push both items to lowercase and then do the comparison.

string searchLower = search.toLowerCase();
string nameLower = name.toLowerCase();
boolean isIncluded = searchLower.startsWith(nameLower) && searchLower.endsWith(nameLower);

Otherwise, if you're actually trying to find if name is contained in your search. Then you can use org.apache.commons.lang3.StringUtils from the Apache Commons library.

boolean isIncluded = StringUtils.containsIgnoreCase(search, name);

Search for String case-insensitive

1 Answers1