Code example for LinkedHashSet

Methods: add

0
    private Map<String, LinkedHashSet<String>> map = new HashMap();
 
    public void addEdge(String node1, String node2) {
        LinkedHashSet<String> adjacent = map.get(node1);
        if(adjacent==null) {
            adjacent = new LinkedHashSet();
            map.put(node1, adjacent);
        } 
        adjacent.add(node2);
    } 
 
    public void addTwoWayVertex(String node1, String node2) {
        addEdge(node1, node2);
        addEdge(node2, node1);
    } 
 
    public boolean isConnected(String node1, String node2) {
        Set adjacent = map.get(node1);
        if(adjacent==null) {
            return false; 
Connect your IDE to all the code out there  Get Codota for Java