In java Language Write the method named shift3() * * You are given a String str. Return a new String where * all of the characters are "shifted" by 3. Here is the * algorithm to do this * 1. Visit each character in the String * 2. Create a new char by adding 3 * 3. Store the new character in the output string * * Examples: * shift3("hello") returns "khoor" * shift3("cat") returns "fdw" * shift3("frog") returns "iurj" * * @param str the String to start with * @return the rotated String as described here

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