[Solved] java regular expression take next value [closed]

Question

If you want only the 12th value

Using split: (very simply, a bit inefficient, but probably not too bad – I wouldn’t bother with anything else unless I’m writing production code)

System.out.println(str.split(",")[12]);

Using indexOf: (somewhat more complex, way more efficient)

int index = 0;
for (int i = 0; i < 12; i++)
   index = str.indexOf(',', index) + 1;
System.out.println(str.substring(index, str.indexOf(',', index)));

Using regex: (probably more complicated than it’s worth)

Pattern pattern = Pattern.compile("^(?:[^,]*,){12}([^,]*)");
Matcher matcher = pattern.matcher(str);
while (matcher.find())
    System.out.println(matcher.group(1));

If you want everything from the 12th value

Using indexOf:

int index = 0;
for (int i = 0; i < 12; i++)
   index = str.indexOf(',', index) + 1;
System.out.println(str.substring(index));

Using regex:

Pattern pattern = Pattern.compile("^(?:[^,]*,){12}(.*)");
Matcher matcher = pattern.matcher(str);
while (matcher.find())
    System.out.println(matcher.group(1));

Test.

Check out this page for more on Java regular expressions.

Accepted Answer