Design Browser History

class BrowserHistory {
    List<String> url = new ArrayList<>();
    int ix = 0;
    public BrowserHistory(String homepage) {
        url.add(homepage);
    }
    
    public void visit(String url1) {
        if(ix < url.size()-1){
            for(int i = url.size()-1; i>ix; i--){
                url.remove(i);
            }
        }
        url.add(url1);
        ix++;
    }
    
    public String back(int steps) {
        if(ix - steps < 0){
            ix = 0;
            return url.get(ix);
        }
        else{
            ix -= steps;
        }
        return url.get(ix);
    }
    
    public String forward(int steps) {
        if(ix + steps >= url.size()){
            ix = url.size()-1;
            return url.get(ix);
        }
        ix += steps;
        return url.get(ix);
    }
}

/**
 * Your BrowserHistory object will be instantiated and called as such:
 * BrowserHistory obj = new BrowserHistory(homepage);
 * obj.visit(url);
 * String param_2 = obj.back(steps);
 * String param_3 = obj.forward(steps);
 */