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## Java 2D iterator with remove not as good for list
static class Vector2D {

    public List<List<Integer>> data;
    int row,col=-1;
    int pRow = -1, pCol = -1;
    public Vector2D(List<List<Integer>> v) {
        data = v;
    }

    public void remove(){

## Java 2D iterator with remove not as good
public class IteratingList {
    boolean isEmpty;
    public ArrayList<ArrayList<Integer>> list;
    private int listIdx, posIdx;
    private int nextListIdx, nextPosIdx;

    // last indicies are used to keep track of the last printed element
    private int lastListIdx = -1, lastPosIdx = -1;

    public IteratingList(ArrayList<ArrayList<Integer>> list){

## Java 2D iterator with remove
public class Vector2D {

    public int[][] data;
    int row,col=-1;
    int pRow = -1, pCol = -1;
    public Vector2D(int[][] v) {
        data = v;
    }

    public void remove(){