Splitting up input using regular expressions in Java
- by Joe24
I am making a program that lets a user input a chemical for example C9H11N02. When they enter that I want to split it up into pieces so I can have it like C9, H11, N, 02. When I have it like this I want to make changes to it so I can make it C10H12N203 and then put it back together. This is what I have done so far. using the regular expression I have used I can extract the integer value, but how would I go about get C10, H11 etc..?
System.out.println("Enter Data");
Scanner k = new Scanner( System.in );
String input = k.nextLine();
String reg = "\\s\\s\\s";
String [] data;
data = input.split( reg );
int m = Integer.parseInt( data[0] );
int n = Integer.parseInt( data[1] );
