Example usage for java.util IdentityHashMap IdentityHashMap

Introduction

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

Prototype

public IdentityHashMap()

Source Link

Document

Constructs a new, empty identity hash map with a default expected maximum size (21).

Usage

From source file:Main.java

public static void main(String args[]) {

    IdentityHashMap<Integer, String> ihmap = new IdentityHashMap<Integer, String>();

    ihmap.put(1, "from");
    ihmap.put(2, "java2s.com");
    ihmap.put(3, "tutorial");

    System.out.println("Value of ihmap before: " + ihmap);
    System.out.println("Size of the map: " + ihmap.size());
}

From source file:Main.java

public static void main(String args[]) {

    IdentityHashMap<Integer, String> ihmap = new IdentityHashMap<Integer, String>();

    ihmap.put(1, "from");
    ihmap.put(2, "java2s.com");
    ihmap.put(3, "tutorial");

    System.out.println("Map values: " + ihmap);
    System.out.println("Collection view of the map: " + ihmap.values());
}

From source file:Main.java

public static void main(String args[]) {

    IdentityHashMap<Integer, String> ihmap = new IdentityHashMap<Integer, String>();

    ihmap.put(1, "from");
    ihmap.put(2, "java2s.com");
    ihmap.put(3, "tutorial");

    System.out.println("Value of ihmap before: " + ihmap);

    // remove element at key 2
    ihmap.remove(2);//from   w w  w. ja va  2 s .  co  m

    System.out.println("Value of ihmap after remove: " + ihmap);
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    Map objMap = new IdentityHashMap();

    Object o1 = new Integer(123);
    Object o2 = new Integer(123);
    objMap.put(o1, "first");
    objMap.put(o2, "second");

    Object v1 = objMap.get(o1); // first
    Object v2 = objMap.get(o2); // second
}

From source file:Main.java

public static void main(String args[]) {

    IdentityHashMap<Integer, String> ihmap1 = new IdentityHashMap<Integer, String>();
    IdentityHashMap<Integer, String> ihmap2 = new IdentityHashMap<Integer, String>();

    // populate the ihmap1
    ihmap1.put(1, "from");
    ihmap1.put(2, "java2s.com");
    ihmap1.put(3, "tutorial");

    System.out.println("Value of ihmap1 before: " + ihmap1);
    System.out.println("Value of ihmap2 before: " + ihmap2);

    // put all values from ihmap1 to ihmap2
    ihmap2.putAll(ihmap1);/*w ww. ja v  a 2 s  .com*/

    System.out.println("Value of ihmap2 after: " + ihmap2);
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    IdentityHashMap<Object, Object> objMap = new IdentityHashMap<Object, Object>();

    Object o1 = new Integer(123);
    Object o2 = new Integer(123);
    objMap.put(o1, "first");
    objMap.put(o2, "second");

    Object v1 = objMap.get(o1); // first
    Object v2 = objMap.get(o2); // second
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    IdentityHashMap<Object, Object> objMap = new IdentityHashMap<Object, Object>();

    Object o1 = new Integer(123);
    Object o2 = new Integer(123);
    objMap.put(o1, "first");
    objMap.put(o2, "from java2s.com");

    Object v1 = objMap.get(o1);/*from   w  w w.j  a  va2s.c o  m*/
    System.out.println(v1);
    Object v2 = objMap.get(o2);
    System.out.println(v2);

    System.out.println(objMap.hashCode());
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    IdentityHashMap<Object, Object> objMap = new IdentityHashMap<Object, Object>();

    Object o1 = new Integer(123);
    Object o2 = new Integer(123);
    objMap.put(o1, "first");
    objMap.put(o2, "from java2s.com");

    Object v1 = objMap.get(o1);//from   w  w  w .j a  va  2s  . c om
    System.out.println(v1);
    Object v2 = objMap.get(o2);
    System.out.println(v2);

    System.out.println(objMap);
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    IdentityHashMap<Object, Object> objMap = new IdentityHashMap<Object, Object>();

    Object o1 = new Integer(123);
    Object o2 = new Integer(123);
    objMap.put(o1, "first");
    objMap.put(o2, "from java2s.com");

    Object v1 = objMap.get(o1);//  www.j a  v a  2  s .  c  o  m
    System.out.println(v1);
    Object v2 = objMap.get(o2);
    System.out.println(v2);

    System.out.println(objMap.isEmpty());
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    IdentityHashMap<Object, Object> objMap = new IdentityHashMap<Object, Object>();

    Object o1 = new Integer(123);
    Object o2 = new Integer(123);
    objMap.put(o1, "first");
    objMap.put(o2, "from java2s.com");

    Object v1 = objMap.get(o1);/*from ww  w .  ja  v a 2 s.  co  m*/
    System.out.println(v1);
    Object v2 = objMap.get(o2);
    System.out.println(v2);

    boolean isavailable = objMap.containsValue("first");

    System.out.println(isavailable);
}