Java - Convert lower to upper case without using toUppercase()
ascii, char, java, lowercase, uppercase
Solution
Looks like homework to me, Just a hint. You are printing string `a` whereas you are modifying the `char` type `aChar`, its not modifying the original string `a`. (Remember strings are immutable).
Problem
I'm trying to create a short program that would convert all letters that are uppercase to lowercase (from the command line input). The following compiles but does not give me the result I am expecting. What would be the reason for this?? Eg) java toLowerCase BANaNa -> to give an output of banana ``` public class toLowerCase{ public static void main(String[] args){ toLowerCase(args[0]); } public static void toLowerCase(String a){ for (int i = 0; i< a.length(); i++){ char aChar = a.charAt(i); if (65 <= aChar && aChar<=90){ aChar = (char)( (aChar + 32) ); } System.out.print(a); } } } ```