Read a sentence from the keyboard and print whether it is a palindrome or not. ( A palindrome is a word,phrase,number,or other sequence of characters which reads the same backward or forward.Allowances may be made for adjustments to capital letters.,punctuation,and word dividers. Famous examples include "A man,a plan,a canal,panama! " ,"Amor,Roma","race car","stack cats","steps on no pets","taco cat","put it up","Was it a car or a cat i saw?" and "No'x' in Nixon".Wikipedia.org)(Java)