Example usage for java.util Hashtable Hashtable

Introduction

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

Prototype

public Hashtable()

Source Link

Document

Constructs a new, empty hashtable with a default initial capacity (11) and load factor (0.75).

Usage

From source file:Main.java

public static void main(String[] s) {
    Hashtable<String, String> table = new Hashtable<String, String>();
    table.put("key1", "value1");
    table.put("key2", "value2");
    table.put("key3", "value3");

    Enumeration e = table.elements();
    while (e.hasMoreElements()) {
        String key = (String) e.nextElement();
        System.out.println(key + " : " + table.get(key));
    }/*from   w  w w  .j a  va 2 s  .  c  om*/

    System.out.println(table.values());
}

From source file:Main.java

public static void main(String args[]) {
    // create hash table 
    Hashtable<Integer, String> htable1 = new Hashtable<Integer, String>();

    // put values in table
    htable1.put(1, "A");
    htable1.put(2, "B");
    htable1.put(3, "C");
    htable1.put(4, "from java2s.com");

    System.out.println("Collection view of hash table: " + htable1.values());
}

From source file:Main.java

public static void main(String args[]) {
    // create hash table 
    Hashtable<Integer, String> htable1 = new Hashtable<Integer, String>();

    // put values in table
    htable1.put(1, "A");
    htable1.put(2, "B");
    htable1.put(3, "C");
    htable1.put(4, "from java2s.com");

    System.out.println("String form of hash table is: " + htable1.toString());
}

From source file:Main.java

public static void main(String args[]) {
    // create hash table 
    Hashtable<Integer, String> htable1 = new Hashtable<Integer, String>();

    // put values in table
    htable1.put(1, "A");
    htable1.put(2, "B");
    htable1.put(3, "C");
    htable1.put(4, "from java2s.com");

    System.out.println("Size of the hash table is: " + htable1.size());
}

From source file:Main.java

public static void main(String args[]) {
    Hashtable<String, String> hash = new Hashtable<String, String>();
    hash.put("1", "one");
    hash.put("2", "two");
    hash.put("3", "three");

    Enumeration keys = hash.keys();
    while (keys.hasMoreElements()) {
        Object key = keys.nextElement();
        Object value = hash.get(key);

        System.out.println(key + " : " + value);
    }//www.  j a  va2 s. co m
}

From source file:Main.java

public static void main(String args[]) {
    // create hash table 
    Hashtable<Integer, String> htable1 = new Hashtable<Integer, String>();

    // put values in table
    htable1.put(1, "A");
    htable1.put(2, "B");
    htable1.put(3, "C");
    htable1.put(4, "from java2s.com");

    // check if table is empty
    System.out.println("Is hash table empty :" + htable1.isEmpty());
}

From source file:Main.java

public static void main(String args[]) {
    // create hash table 
    Hashtable<Integer, String> htable1 = new Hashtable<Integer, String>();

    // put values in table
    htable1.put(1, "A");
    htable1.put(2, "B");
    htable1.put(3, "C");
    htable1.put(4, "from java2s.com");

    // get the hash code value
    System.out.println("Hash code value is :" + htable1.hashCode());
}

From source file:Main.java

public static void main(String args[]) {
    // create hash table 
    Hashtable<Integer, String> htable1 = new Hashtable<Integer, String>();

    // put values in table
    htable1.put(1, "A");
    htable1.put(2, "B");
    htable1.put(3, "C");
    htable1.put(4, "from java2s.com");

    // get values at key 3
    System.out.println("Values at key 3 is:" + htable1.get(3));
}

From source file:Main.java

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

    ht.put("1", "One");
    ht.put("2", "Two");
    ht.put("3", "Three");

    Object obj = ht.remove("2");

    System.out.println(obj + " was Removed ");

    Enumeration e = ht.elements();

    while (e.hasMoreElements()) {
        System.out.println(e.nextElement());
    }//from  w  ww . j  a  va  2s  .  com
}

From source file:MainClass.java

public static void main(String[] s) {
    Hashtable table = new Hashtable();
    table.put("key1", "value1");
    table.put("key2", "value2");
    table.put("key3", "value3");

    Map m = Collections.unmodifiableMap(table);

    m.put("key3", "value3");

    System.out.println(m);//  ww  w  . j  av a2  s. c  o  m

}