Xrayez

git branch -m master newname
git push origin newname
# Change "Default Branch" in settings/options in GitHub
git push --delete origin master

Xrayez

import java.util.*;

public class BreadthFirstIterator<T> implements Iterator<T> {
    private Set<T> visited = new HashSet<>();
    private Queue<T> queue = new LinkedList<>();
    private Graph<T> graph;

    public BreadthFirstIterator(Graph<T> g, T startingVertex) {
        if(g.isVertexExist(startingVertex)) {
            this.graph = g;