java retain information in recursive function

Question

Is it possible to retain information via a helper function with java, without using static variables.

For example,

public void foo(){
    int v = 0;
         


        

Answer 1

You could return a list or a similar data structure:

public List fooHelper( int v, int depth ){
    if( depth == 0 ) return new ArrayList();

    v++;
    List result = fooHelper( v, depth-1 );

    result.add( new Integer(v) );

    return result;
}