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");

    System.out.println(table.contains("value3"));

}

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");
    ht.clear();/*from   ww  w  . ja v a2 s.  co m*/
    System.out.println(ht.size());
}

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");

    boolean blnExists = ht.containsKey("2");
    System.out.println("2 exists in Hashtable ? : " + blnExists);
}

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");

    System.out.println(table.isEmpty());
    System.out.println(table.size());
}

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");

    table.clear();//from   ww w .j  a v  a 2 s  .  co m

    System.out.println(table);
}

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");

    boolean blnExists = ht.contains("Two");
    System.out.println("Two exists in Hashtable ? : " + blnExists);
}

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");

    table.remove("key1");

    System.out.println(table);//from w ww.  j  a  v  a  2 s  .  c om
}

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");

    Hashtable tableCopy = (Hashtable) table.clone();

    System.out.println(tableCopy);

}

From source file:Main.java

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

    System.out.println("Size of Hashtable : " + ht.size());

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

    System.out.println(ht.size());

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

    System.out.println(ht.size());
}

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");

    Hashtable<String, String> table2 = new Hashtable<String, String>();
    table2.put("key4", "value4");
    table2.put("key5", "value5");
    table2.put("key6", "value6");

    table2.putAll(table);/*from w ww.j av a2 s .  c  o  m*/

    System.out.println(table2);
}