Splitting a string into multiple int form using indexOf() Code Answer

This is my first post so go easy on me. This IS a homework question, but I have spent about 7 hours working through various means to complete this goal and have had no success. I am building various methods for an assignment, and I need to figure out how to split a String into several int variables.

Ex: given the String “100 200 300” I need to change it to three int of 100, 200, 300. I have to use indexOf(), and cannot use split() or arrays.

    String scores="100 200 300";
    int n=scores.indexOf(" ");
    String sub=scores.substring(0,n);
    Integer.parseInt(sub);

This lets me get the first string “100” and parse it. However, I do not know how to continue the code so it will get the next ones. For my method, I will need the new int variables for later arguments.

EDIT: I think I need to use a for loop: something like:

for(int i=0; i<=scores.length; i++)
{//I do not know what to put here}

Answer

Joe, indexOf() is overloaded, check out this version:

http://docs.oracle.com/javase/7/docs/api/java/lang/String.html#indexOf(int,%20int)