How to extract two characters from a given string at the same time?

Question

I want two characters to extract.

Answer 1

try with substring

Answer 2

Question is unclear for me.. Can you explain more with an example?
"Also share your code what you tried..

charAt(i) will give you character at i'th index. So i+1 give you next char..

Answer 3

if i have a string of "Hello, World!"
which character you want to extract ?

Answer 4

try substring as Oma Falk and Jayakrishna said.
use substring and combination of i+1.

so fpr example
i=0;
s.substring(i,i+2)
//its not +1 sorry
//end index is exclusive

now modify i so next substring wont overlap with previous substring

Answer 5

i=0;
s.charAt(i)+""+s.charAt(i+1);

Or else go use

i=0;
s.substring(i, i+2);

i+=2;

Answer 6

if you don't like indexes

import java.util.Scanner;
..
String str = "12345678";
Scanner sc = new Scanner(str) .useDelimiter("(?<=\\G..)");
//(?<= look behind, \\G from last match, .. two chars

while( sc.hasNext() ) {
System.out.println( sc.next() );
}

Answer 7

Everytime you can't go for index finding to put it in substring function.

Answer 8

I want first two characters to come,then next two characters and so on till the end.

Answer 9

Not satisfied with your answer.