toUpperCase (Locale locale)

public String toUpperCase(Locale locale)

Converts all of the characters in this String to upper case using the rules of the given Locale.

import java.util.Locale;
class StringToUpperCaseLocale{
 public static void main(String args[]){
  String str = "eFgHiJkLm";
  String upper1 = str.toUpperCase(Locale.TAIWAN);
  String upper2 = str.toUpperCase(Locale.getDefault());
  
  System.out.println("str = " + str);
  System.out.println("upper1 = " + upper1);
  System.out.println("upper2 = " + upper2);
 } 
}

Output

str = eFgHiJkLm
upper1 = EFGHIJKLM
upper2 = EFGHIJKLM

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