public class Main {

    

    /**

     * Converts all lower case characters to upper case

     */

    public void stringToUpperCase() {

        

        String str = "All Lower Case Characters In This String Will Be Converted To Upper Case";

        

        str = str.toUpperCase();

        

        System.out.println(str);

    }

    

    /**

     * Starts the program

     *

     * @param args the command line arguments

     */

    public static void main(String[] args) {

        new Main().stringToUpperCase();

    }

}

 

The result of the above code when executed:

ALL LOWER CASE CHARACTERS IN THIS STRING WILL BE CONVERTED TO UPPER CASE