如何在树形图java中遍历树形图[重复]答案

【问题标题】：how to iterate through a treemap within a treemap java [duplicate]如何在树形图java中遍历树形图[重复]
【发布时间】：2016-04-12 16:01:04
【问题描述】：

你好，我有这个树形图：

TreeMap<String, Info> words = new TreeMap();

类信息和节点是这样的：

 public static class Info {

  int totalOccurrences;
  int maxTF ; 
  ArrayList<Node> pointer;
  //ArrayList<String> files;  // document frequency --> files.size()
  TreeMap<String, Integer> files;

  Info(String selected) {

       totalOccurrences = 0;

       pointer = new ArrayList<Node>();
       pointer.add(new Node(selected));

       //files = new ArrayList<String>();
       files = new TreeMap();

       maxTF = 0 ; 
  }

 }

所以我想做的是为每个文件获取 TreeMap 的整数值单词 Treemap 元素之一

换句话说，我如何在 TreeMap 中遍历 TreeMap？

非常感谢

【问题讨论】：

标签： java iteration treemap

【解决方案1】：

这应该可行：

TreeMap<String, Info> words = new TreeMap();

public static class Info {

    int totalOccurrences;
    int maxTF;
    ArrayList<Node> pointer;
    //ArrayList<String> files;  // document frequency --> files.size()
    TreeMap<String, Integer> files;

    Info(String selected) {

        totalOccurrences = 0;

        pointer = new ArrayList<Node>();
        pointer.add(new Node(selected));

        //files = new ArrayList<String>();
        files = new TreeMap();

        maxTF = 0;
    }

}

public void test() {
    // For each Info in the `words`
    for (Info i : words.values()) {
        // For each file in `files`
        for (Map.Entry<String, Integer> e : i.files.entrySet()) {
            System.out.println("i=" + i + " e=" + e);
        }
    }
}

【讨论】：