Java - How to split a string "abcdefghijklmnopq" into an array of strings [abc,def,ghi,jkl,lmn,opq]

Asked May 12 '15 at 01:22

Active May 13 '15 at 05:45

Viewed 115 times

I am writing a program that needs to convert every three characters into a corresponding value, this means I need to store every three characters of the string into an array, I am unsure how to approach this, any ideas?

A friend showed me a brute force method;

Scanner kb = new Scanner(System.in);
String input = kb.next();
int n = input.length()/3;
String[] num = new String[n];

for(int i = 0, x=0, y=3; i<n; i++){
num[i]  = input.substring(x,y);
x += 3;
y += 3;
System.out.println(num[i]);
}

edited May 13 '15 at 05:45

asked May 12 '15 at 01:22

Hubbly

What have you thought of so far? Can you solve an easier problem first, like splitting the string into two strings? – Jerry101 May 12 '15 at 01:24
Can you show your code that you have so far? – Adam Link May 12 '15 at 01:25
2

I thought of using substrings and a loop to assign every three values into the array but it didn't really work to well – Hubbly May 12 '15 at 01:26
Thankyou for the find dasblinkenlight – Hubbly May 12 '15 at 01:28
1

this should be an interview question :P – ZhongYu May 12 '15 at 01:31
String input="abcdefghijkl"; Matcher m=Pattern.compile("[a-z]{1,3}").matcher(input); while(m.find()) System.out.println(m.group(0)); – Mohan Raj May 12 '15 at 04:45

Java - How to split a string "abcdefghijklmnopq" into an array of strings [abc,def,ghi,jkl,lmn,opq]

0 Answers0