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Sort ArrayList <Node> lexicographically?

I want to sort an ArrayList with type Node, for example:

 [[country1: null], [name2: null], [city3: null], [region4: null], [name6: null]]

To get the Node name value, I use the getNodeName () function, therefore

 ArrayNode.get(0).getNodeName()  // return country1

I look at collection.sort , but I do not know how I will do this, thanks in advance.

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3 answers

Use Comparator to define comparison logic.

Something like that:

ArrayList<Node> nodes;
        Collections.sort(nodes, new Comparator<Node>() {
            @Override
            public int compare(Node o1, Node o2) {
                return o1.getNodeName().compareTo(o2.getNodeName());
            }
        });
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I think you need java.util.Comparator. You can use this with Collections.sort

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Comparator, node, Collections.sort(list,comparator)

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