Need help with a Java problem:
Write a program called CountLetters.java that prompts the user for the name of a text file, reads in all of the text in that file, and then computes and prints a table of letter frequencies. For example, if the file is the text of the U.S. constitution, the program will print:
Enter the name of the file: data/constitution.txt a 2,660 b 611 c 1,190 d 1,223 e 5,108 f 1,018 g 439 h 2,019 i 2,486 j 95 k 53 l 1,478 m 725 n 2,635 o 2,739 p 764 q 46 r 2,187 s 2,693 t 3,755 u 843 v 473 w 372 x 124 y 503 z 31.