Java String to Upper Case example

This Java String to Upper Case example shows how to change the string to upper case using toUpperCase method of String class.

public class StringToUpperCaseExample {

 public static void main(String[] args) {

  String str = "string touppercase example";

  /*
   * To change the case of string to upper case use,
   * public String toUpperCase() method of String class.
   */

  String strUpper = str.toUpperCase();

  System.out.println("Original String: " + str);
  System.out.println("String changed to upper case: "+strUpper);
 }
}

The output is:


Original String: string touppercase example
String changed to upper case: STRING TOUPPERCASE EXAMPLE