How do you ignore a comparison case?

The compareToIgnoreCase() method compares two strings lexicographically, ignoring lower case and upper case differences. The comparison is based on the Unicode value of each character in the string converted to lower case. The method returns 0 if the string is equal to the other string, ignoring case differences.

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Is TreeMap case-insensitive?

Also, TreeMap uses a Comparator to find if an inserted key is a duplicate or a new one. Therefore, if we provide a case-insensitive String Comparator, we’ll get a case-insensitive TreeMap . which we can supply in the constructor: Map<String, Integer> treeMap = new TreeMap<>(String.26 May 2020

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