App Inventor Calculator Tutorial Part 3 (of 4)

Java interview question: Count the characters that don't change position when you reverse a string.

Java interview question: Count the non alpha numeric characters in a string

Java interview question: Print the distinct elements in an array

Java interview question: Remove all vowels from a string.

Java interview question: Reverse each word except for the 1st and last character

App Inventor Say My Name Tutorial (Reversing Text) Part 2 (of 4)