case-insensitive

This question already has an answer here: Case insensitive string as HashMap key 12 answers Is there a good way to have a Map<String, ?> get and put ignoring case? TreeMap extends Map and supports custom comparators. String provides a default case insensitive comparator. So: final Map<String, ...> map = new TreeMap<>(String.CASE_INSENSITIVE_ORDER); The comparator does not take locale into account. Read more about it in its JavaDoc. You could use CaseInsensitiveMap from Apache's Commons Collections. Guido Would it be possible to implement your own Map overriding put/get methods ? public class

I am writing these lines of code: String name1 = fname.getText().toString(); String name2 = sname.getText().toString(); aru = 0; count1 = name1.length(); count2 = name2.length(); for (i = 0; i < count1; i++) { for (j = 0; j < count2; j++) { if (name1.charAt(i)==name2.charAt(j)) aru++; } if(aru!=0) aru++; } I want to compare the Character s of two String s ignoring the case. Simply using IgnoreCase doesn't work. Adding '65' ASCII value doesn't work either. How do I do this? Shehzad The Character class of Java API has various functions you can use. You can convert your char to lowercase at both

I am using std::string 's find() method to test if a string is a substring of another. Now I need case insensitive version of the same thing. For string comparison I can always turn to stricmp() but there doesn't seem to be a stristr() . I have found various answers and most suggest using Boost which is not an option in my case. Additionally, I need to support std::wstring / wchar_t . Any ideas? Kirill V. Lyadvinsky You could use std::search with a custom predicate. #include <locale> #include <iostream> #include <algorithm> using namespace std; // templated version of my_equal so it could work

The == operator is used to compare two strings in shell script. However, I want to compare two strings ignoring case, how can it be done? Is there any standard command for this? if you have bash str1="MATCH" str2="match" shopt -s nocasematch case "$str1" in $str2 ) echo "match";; *) echo "no match";; esac otherwise, you should tell us what shell you are using. alternative, using awk str1="MATCH" str2="match" awk -vs1="$str1" -vs2="$str2" 'BEGIN { if ( tolower(s1) == tolower(s2) ){ print "match" } }' alphaniner In Bash, you can use parameter expansion to modify a string to all lower-/upper-case

I’m using a FirebaseRecyclerAdapter to display a list of strings. My query uses orderByChild. The results sorts with capitalize letters first and looks like this: Item 1, Item 2, Item 3, aItem, bItem, zItem. How do I use orderByChild resulting in case insensitive sorting? You don't. Kind of. If you have data you want to sort by but there also needs to be a user representation of that data, keep two versions posts post_id_0 display_version: William sort_version: william post_id_1 display_version: Henry sort_version: henry Of course you could read in all of the data from Firebase and use

This question already has an answer here: How to check if a String contains another String in a case insensitive manner in Java? 19 answers Is it possible to determine if a String str1="ABCDEFGHIJKLMNOP" contains a string pattern strptrn="gHi" ? I wanted to know if that's possible when the characters are case insensitive. If so, how? You can use org.apache.commons.lang3.StringUtils.containsIgnoreCase(CharSequence str, CharSequence searchStr); Checks if CharSequence contains a search CharSequence irrespective of case, handling null. Case-insensitivity is defined as by String.equalsIgnoreCase