Example usage for java.util TreeMap TreeMap

Introduction

In this page you can find the example usage for java.util TreeMap TreeMap.

Prototype

public TreeMap()

Source Link

Document

Constructs a new, empty tree map, using the natural ordering of its keys.

Usage

From source file:Main.java

public static void main(String[] args) {
    TreeMap<String, String> treeMap = new TreeMap<String, String>();
    treeMap.put("1", "One");
    treeMap.put("3", "Three");
    treeMap.put("2", "Two");
    treeMap.put("5", "Five");
    treeMap.put("4", "Four");

    SortedMap sortedMap = treeMap.headMap("3");
    System.out.println("Head Map Contains : " + sortedMap);
}

From source file:Main.java

public static void main(String[] args) {
    TreeMap<Integer, String> db = new TreeMap<Integer, String>();
    db.put(1000, "1000");
    db.put(1011, "1011");
    db.put(1102, "1102");
    db.put(2023, "2023");
    db.put(2034, "2034");

    TreeMap<Integer, String> db2 = new TreeMap<Integer, String>(db);

    System.out.println(db2);/*from w w w  .  j ava 2  s  .  c  om*/
}

From source file:Main.java

public static void main(String[] args) {
    TreeMap<String, String> treeMap = new TreeMap<String, String>();
    treeMap.put("1", "One");
    treeMap.put("3", "Three");
    treeMap.put("2", "Two");
    treeMap.put("5", "Five");
    treeMap.put("4", "Four");

    SortedMap sortedMap = treeMap.tailMap("2");
    System.out.println("Tail Map Contains : " + sortedMap);
}

From source file:Main.java

public static void main(String[] args) {
    TreeMap<String, String> treeMap = new TreeMap<String, String>();

    treeMap.put("1", "One");
    treeMap.put("2", "Two");
    treeMap.put("3", "Three");
    treeMap.put("4", "Four");
    treeMap.put("5", "Five");

    SortedMap sortedMap = treeMap.subMap("2", "5");
    System.out.println("SortedMap Contains : " + sortedMap);
}

From source file:Main.java

public static void main(String[] args) {
    Map<Character, Integer> map = new TreeMap<>();

    String blah = "aaaabbbbddd";

    for (int i = 0; i < blah.length(); i++) {
        char c = blah.charAt(i);
        if (!map.containsKey(c)) {
            map.put(c, 1);/*from   ww w .  java  2 s . c  om*/
        } else {
            map.put(c, (map.get(c) + 1));
        }
    }

    for (Map.Entry<Character, Integer> entry : map.entrySet()) {
        System.out.print(entry.getKey() + "" + entry.getValue());
    }
}

From source file:Main.java

public static void main(String[] args) {
    SortedMap<String, Integer> sortedMap = new TreeMap<String, Integer>();
    sortedMap.put("A", 1);
    sortedMap.put("B", 2);
    sortedMap.put("C", 3);
    sortedMap.put("D", 4);
    sortedMap.put("E", 5);
    sortedMap.put("java2s", 6);

    System.out.println(sortedMap.entrySet());

}

From source file:Main.java

public static void main(String args[]) {

    NavigableMap<String, String> nav = new TreeMap<String, String>();
    nav.put("A", "a");
    nav.put("B", "b");
    nav.put("C", "c");
    nav.put("D", "d");
    nav.put("E", "e");
    nav.put("F", "f");
    System.out.println(nav);/*from   ww  w  .  ja v a  2 s.c  o  m*/
    System.out.println(nav.floorEntry("G"));
}

From source file:Main.java

public static void main(String[] args) {
    SortedMap<String, Integer> sortedMap = new TreeMap<String, Integer>();
    sortedMap.put("A", 1);
    sortedMap.put("B", 2);
    sortedMap.put("C", 3);
    sortedMap.put("D", 4);
    sortedMap.put("E", 5);
    sortedMap.put("java2s", 6);

    System.out.println(sortedMap.firstKey());

}

From source file:Main.java

public static void main(String args[]) {

    NavigableMap<String, String> nav = new TreeMap<String, String>();
    nav.put("A", "a");
    nav.put("B", "b");
    nav.put("C", "c");
    nav.put("D", "d");
    nav.put("E", "e");
    nav.put("F", "f");
    System.out.println(nav);/*from w  w w  .  j  a v a  2  s  .c  o m*/
    System.out.println(nav.higherKey("G"));
}

From source file:Main.java

public static void main(String args[]) {

    NavigableMap<String, String> nav = new TreeMap<String, String>();
    nav.put("A", "a");
    nav.put("B", "b");
    nav.put("C", "c");
    nav.put("D", "d");
    nav.put("E", "e");
    nav.put("F", "f");
    System.out.println(nav);/*from   w w  w. j ava2  s . c o m*/
    System.out.println(nav.lowerKey("G"));
}