String.toUpperCase() toUpperCase to update lowercase chars to uppercase in a string.

Returns a string.

Here are some examples with output.
String str = "i am a string";
System.out.println(str.toUpperCase()); // I AM A STRING
System.out.println(str.toUpperCase(Locale.forLanguageTag("tr"))); // ? AM A STR?NG

All String functions


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