The document describes a method that takes a string as input, prints the characters in reverse order while removing spaces but keeping uppercase letters, and provides an example where the input string "Do or Do Not, There is No Try!" is reversed to "!yrToNsierehT,toNoDrooD".

1. In java, print the string's characters in reverse, removing spaces but keeping uppercased letters.
Make it so that it has its own method. Please explain each steps in detail.
Example if input is:
Do or Do Not, There is No Try!
the output is:
Please enter a one line sentence:
!yrToNsierehT,toNoDrooD