Can someone please show me their code and JavaDoc it. I am using Eclipse (Java) to code. Thanks!

Write a program, StringManipulation, that implements a method toUpperCase that for a given string converts all its characters to uppercase and returns the new String. The method should not modify the string passed as input parameter to the method. The method signature is: public static String toUpperCase(String sentence) Note: You are not allowed to use the method toUpperCase from the String class. Hint: Understanding of the Ascii Table and that you can do character arithmetics can make this problem very simple (few lines of code).