to-upper-case
Java String.toUpperCase()
The method toUpperCase() converts all characters of a String to upper case. If no Locale is passed to the method, then it will use the default Locale.
However, it may produce unexpected results if it’s run on a system whose default Locale is different. To avoid this, we can simply pass the Locale to the method.
Available Signatures
public String toUpperCase() public String toUpperCase(Locale locale)