3.1 Write a Java program named CharsIndex to get the index of all the characters of the alphabet. Ask user to input a string. The sample output was produced by this string: "The quick brown fox Jumps over the lazy dog." Sample Output: a bcdet ghi 36 10 7 40 2 16 42 1 6 20 k 1 mnopqrs t 8 35 22 14 12 23 4 11 24 31 5 27 13 18 38 37