Adapt the StringComparison program from Sect. 7.6.3, which compares two strings, in the following ways: (a) Rewrite the program so that it ignores case; (b) Rewrite the program, using the equals...

Adapt the StringComparison program from Sect. 7.6.3, which compares two strings, in the following ways: (a) Rewrite the program so that it ignores case; (b) Rewrite the program, using the equals method, so that all it does is to test whether the two strings are the same; (c) Repeat (b) using the equalsIgnoreCase method; (d) Use the trim method so that the program ignores leading or trailing spaces.