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Thread: Create a tree from list of strings

  1. #1
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    Default Create a tree from list of strings

    paths = [
    "nodeA1",
    "nodeA1/nodeB1/nodeC1",
    "nodeA1/nodeB1/nodeC1/nodeD1/nodeE1",
    "nodeA1/nodeB1/nodeC2",
    "nodeA1/nodeB2/nodeC2",
    "nodeA3/nodeB2/nodeC3"
    ]


    you have list of strings there. how can i create a tree by system.out.println from all those paths.

    nodea1
    ----nodeb1
    -----------nodec1
    -------------------noded1
    ------------------------------nodee1
    -----------nodec2
    -----nodeb2
    -----------nodec2
    nodea3
    -------nodeb2
    ------------nodec3



    alogrithm am trying

    package project2;
     
    import java.util.ArrayList;
    import java.util.LinkedList;
    import java.util.List;
     
    public class Exercise {
        String krikor = "lolig";
     
        public Exercise() {
     
            List<Node> nodelist = new ArrayList();
            String[] jo = new String[4];
            jo[0] = "Elie>2>4";
            jo[1] = "Elie>3>1>2";
            jo[2] = "Krikor>Elie>7";
            jo[3] = "Krikor>10";
            int f = jo.length;
            int p = 0;
            while (p < f) {
                String[] split = jo[p].split(">");
                int x = split.length;
                int m = 0;
                while (m < x) {
                    System.out.println(split[m]);
                    m = m + 1;
                    // here I will add each value into arraylist of nodes.and i will add their children as well.and their level
     
                }
                p = p + 1;
            }
     
     
        }
     
        public void setKrikor(String krikor) {
            this.krikor = krikor;
        }
     
        public String getKrikor() {
            return krikor;
        }
    }

    package project2;
     
    import java.util.ArrayList;
    import java.util.List;
     
    public class Node {
        String name;
        int level;
        public ArrayList<Node> childs = new ArrayList<Node>();
     
        public void setName(String name) {
            this.name = name;
        }
     
        public String getName() {
            return name;
        }
     
        public void setChilds(ArrayList<Node> childs) {
            this.childs = childs;
        }
     
        public ArrayList<Node> getChilds() {
            return childs;
        }
     
        public void setLevel(int level) {
            this.level = level;
        }
     
        public int getLevel() {
            return level;
        }
    }


    this is best i can go for. anyone with big help?


  2. #2
    Junior Member
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    Default Re: Create a tree from list of strings

    case works like this

    1/2/3
    2/3/4
    1/6/7

    tree willlook

    1
    ---2
    ------3
    ---6
    -------7
    2
    ---3
    ------4


    someone can help me with coding this?

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