Wrong Output Coming

#1

This is the code I have written and I am not getting the answer. Please help

#2

I am getting input mismatch error . Please help.

#3

Use an arraylist to store the words and while searching use an arraylist
corrected code:

#4

Please guide what is wrong in this code if we want to excute without creating a arraylist. https://ide.codingblocks.com/s/464965