Example usage for java.util TreeMap put

Introduction

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

Prototype

public V put(K key, V value)

Source Link

Document

Associates the specified value with the specified key in this map.

Usage

From source file:TreeMapDemo.java

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

    tm.put("A", new Double(3.34));
    tm.put("B", new Double(1.22));
    tm.put("C", new Double(1.00));
    tm.put("D", new Double(9.22));
    tm.put("E", new Double(-1.08));

    Set<Map.Entry<String, Double>> set = tm.entrySet();

    for (Map.Entry<String, Double> me : set) {
        System.out.print(me.getKey() + ": ");
        System.out.println(me.getValue());
    }//from  ww  w.  j  a va2 s  .c o  m

    double balance = tm.get("A");
    tm.put("B", balance + 1000);

    System.out.println(tm.get("A"));
}

From source file:Main.java

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

    System.out.println(db);/*from   w w w  .j a v  a2 s .c  o  m*/
}

From source file:Main.java

public static void main(String[] args) {
    TreeMap<Integer, Product> db = new TreeMap<Integer, Product>();
    db.put(1000, new Product("D", 350));
    db.put(1011, new Product("p", 15.75));
    db.put(1102, new Product("M", 8.50));
    db.put(2023, new Product("A", 150));
    db.put(2034, new Product("T", 9.99));

    System.out.println(db.subMap(1000, 1999) + "\n");

    System.out.println(db.tailMap(1011) + "\n");

    System.out.println(db.headMap(2023));

    System.out.println("First key higher than 2034: " + db.higherKey(2034));
    System.out.println("First key lower than 2034: " + db.lowerKey(2034));
}

From source file:MainClass.java

public static void main(String args[]) {

    TreeMap<String, Double> tm = new TreeMap<String, Double>();

    tm.put("A", new Double(3434.34));
    tm.put("B", new Double(123.22));
    tm.put("C", new Double(1378.00));
    tm.put("D", new Double(99.22));
    tm.put("E", new Double(-19.08));

    Set<Map.Entry<String, Double>> set = tm.entrySet();

    for (Map.Entry<String, Double> me : set) {
        System.out.print(me.getKey() + ": ");
        System.out.println(me.getValue());
    }/*w w  w  .j a  va 2s  .  c  o  m*/
    System.out.println();

    double balance = tm.get("B");
    tm.put("B", balance + 1000);

    System.out.println("B's new balance: " + tm.get("B"));
}

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 first entry");
    System.out.println("First entry is: " + treemap.firstEntry());
}

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 greatest key less than or equal to 4");
    System.out.println("Value is: " + treemap.floorKey(4));
}

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 floor entry for 6");
    System.out.println("Value is: " + treemap.floorEntry(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("Checking value for key 3");
    System.out.println("Value is: " + treemap.get(3));
}

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");

    // getting size of the map
    System.out.println("Size of the map: " + treemap.size());
}

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 first key");
    System.out.println("First key is: " + treemap.firstKey());
}