String toUpperCase() method in Java

The toUpperCase()  method in Java converts all of the characters in this String to upper case using the rules of the default locale.


Let us see the syntax,


The method has no parameters.


The following is an example of toUpperCase(),


The following is the output,

Java string touppercase method

String toString() method in Java
String toUpperCase(Locale locale) method in Java
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