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) {
    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);

    SortedMap<String, Integer> map = sortedMap.subMap("B", "E");
    System.out.println(map);/* w w  w .  j ava2  s . c o  m*/

}

From source file:Main.java

public static void main(String[] args) {
    SortedMap<String, String> sMap = new TreeMap<>();
    sMap.put("CSS", "style");
    sMap.put("HTML", "mark up");
    sMap.put("Oracle", "database");
    sMap.put("XML", "data");

    SortedMap<String, String> subMap = sMap.subMap("CSS", "XML");
    System.out.println(subMap);//from  w w  w  .  j  a  v a 2s.  c  om

    // Get the first and last keys
    String firstKey = sMap.firstKey();
    String lastKey = sMap.lastKey();
    System.out.println("First Key:  " + firstKey);
    System.out.println("Last key:   " + lastKey);
}

From source file:Main.java

public static void main(String[] args) {

    TreeMap<Integer, String> treemap = new TreeMap<Integer, String>();

    // populating tree map
    treemap.put(2, "two");
    treemap.put(1, "one");
    treemap.put(3, "three");
    treemap.put(6, "six");
    treemap.put(5, "from java2s.com");

    System.out.println("Getting tail map");
    SortedMap<Integer, String> treemapincl = treemap.tailMap(3);
    System.out.println("Tail map values: " + treemapincl);
}

From source file:Main.java

public static void main(String[] args) {

    TreeMap<Integer, String> treemap = new TreeMap<Integer, String>();

    // populating tree map
    treemap.put(2, "two");
    treemap.put(1, "one");
    treemap.put(3, "three");
    treemap.put(6, "six");
    treemap.put(5, "from java2s.com");

    System.out.println("Getting a portion of the map");
    SortedMap<Integer, String> treemapincl = treemap.subMap(1, 5);
    System.out.println("Sub map values: " + treemapincl);
}

From source file:Main.java

public static void main(String[] args) {

    TreeMap<Integer, String> treemap = new TreeMap<Integer, String>();

    // populating tree map
    treemap.put(2, "two");
    treemap.put(1, "one");
    treemap.put(3, "three");
    treemap.put(6, "six");
    treemap.put(5, "from java2s.com");

    System.out.println("Getting tail map");
    SortedMap<Integer, String> treemapincl = treemap.tailMap(3, true);
    System.out.println("Tail map values: " + treemapincl);
}

From source file:Main.java

public static void main(String[] args) {

    TreeMap<Integer, String> treemap = new TreeMap<Integer, String>();

    // populating tree map
    treemap.put(2, "two");
    treemap.put(1, "one");
    treemap.put(3, "three");
    treemap.put(6, "six");
    treemap.put(5, "from java2s.com");

    // creating set
    Set set = treemap.keySet();//from w  ww . j av  a2s .co  m

    // getting set view         
    System.out.println("Checking values of the set");
    System.out.println("Value is: " + set);
}

From source file:Main.java

public static void main(String[] args) {

    TreeMap<Integer, String> treemap = new TreeMap<Integer, String>();

    // populating tree map
    treemap.put(2, "two");
    treemap.put(1, "one");
    treemap.put(3, "three");
    treemap.put(6, "six");
    treemap.put(5, "from java2s.com");

    System.out.println("Ceiling entry for 4: " + treemap.ceilingEntry(4));
    System.out.println("Ceiling entry for 5: " + treemap.ceilingEntry(5));
}

From source file:Main.java

public static void main(String[] args) {

    TreeMap<Integer, String> treemap = new TreeMap<Integer, String>();

    // populating tree map
    treemap.put(2, "two");
    treemap.put(1, "one");
    treemap.put(3, "three");
    treemap.put(6, "six");
    treemap.put(5, "from java2s.com");

    System.out.println("Checking value");
    System.out.println("'three' exists: " + treemap.containsValue("three"));
}

From source file:Main.java

public static void main(String[] args) {

    TreeMap<Integer, String> treemap = new TreeMap<Integer, String>();

    // populating tree map
    treemap.put(2, "two");
    treemap.put(1, "one");
    treemap.put(3, "three");
    treemap.put(6, "six");
    treemap.put(5, "from java2s.com");

    System.out.println("Checking key value 6");
    System.out.println("Value for key 6 exists: " + treemap.containsKey(6));
}

From source file:Main.java

public static void main(String[] args) {

    TreeMap<Integer, String> treemap = new TreeMap<Integer, String>();

    // populating tree map
    treemap.put(2, "two");
    treemap.put(1, "one");
    treemap.put(3, "three");
    treemap.put(6, "six");
    treemap.put(5, "from java2s.com");

    System.out.println("Getting collection from the map");
    Collection<String> coll = treemap.values();
    System.out.println("Value of the collection: " + coll);
}