The test part of the loop can use the OR operator to allow several choices.
The test part of a loop (any of the three varieties) is a boolean expression. We want a boolean expression that evaluates to true if the user enters:
chars.equals( "yes" ) ______ chars.equals( "YES" ) ______ chars.equals( "y" ) ______ chars.equals( "Y" )
Fill in the blanks.