How do you lowercase a letter in java?

Java is a case-sensitive language , which means that the upper or lower case of letters in your Java programs matter.

Pattern. CASE_INSENSITIVE Enables case-insensitive matching . By default, case-insensitive matching assumes that only characters in the US-ASCII charset are being matched. Unicode-aware case-insensitive matching can be enabled by specifying the UNICODE_CASE flag in conjunction with this flag.

Java String toLowerCase() Method The toLowerCase() method converts a string to lower case letters . Note: The toUpperCase() method converts a string to upper case letters.