Question

I am just trying to split a string into two smaller strings. It seems like it would be easy but for some reason I cannot figure it out. An example of what I am trying to split is this:

AA
BB
DD
FF
TT
EE
SE
GR

These values are currently in an ArrayList and I would like them to split into two arraylists

A                A
B                B
D                D

I tried this

prse = calls.get(t).split(""); //also tried prse = calls.get(t).split("", -1);
            call1.add(prse[0]);
            call2.add(prse[1]);

But it filled my arraylists with empty characters. (Printed []
[, ]
[, , ]
[, , , ]
[, , , , ])

So then I tried

    String split = calls.get(t).substring(0,1); //This is 285 that is puking
    String split2 = calls.get(t).substring(1,2);
                System.out.println(split);
                call1.add(split);
                System.out.println("1: " + call1);
                call2.add(split2);
                System.out.println("2: " + call2);

Which works up to a point but then dies a horrible death:

1: [F, P, T, B, F, D, S, G, G, G, Z, S, Q, E, F, H, L, P, O, L, G, B, V, F, W, Q, T, H, G, E, R, T, Y, C, G, D, C, H, C, A]
2: [o, G, U, U, Y, Y, T, T, T, T, T, R, E, S, G, J, H, C, H, H, H, G, C, J, H, D, G, J, H, D, R, G, V, C, G, V, V, D, V, V]

Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 1
        at java.lang.String.substring(String.java:1946)
        at print.Reader.ffy(Reader.java:285)
        at print2.Print2.main(Print2.java:48)

Can anyone suggest a better way to do this (Or explain to me what I am doing wrong)?
Notes:
I would like to put the split letters into their own, separate ArrayList String (due to later usage.) so I would rather not charArray.

Answer 1

        prse = calls.get(t).split("");
        call1.add(prse[0]);
        call2.add(prse[1]);

when u split with blank string => “”, the first string that u get is blank(“”).
so example : “AB” prse[0] = “”, prse[1]=”A” ,prse[2]=”B”