Example usage for java.util Hashtable put

Introduction

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

Prototype

public synchronized V put(K key, V value)

Source Link

Document

Maps the specified key to the specified value in this hashtable.

Usage

From source file:Main.java

public static void main(String args[]) {

    Hashtable<Integer, String> htable = new Hashtable<Integer, String>();

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

    Hashtable<Integer, String> htable1 = new Hashtable<Integer, String>(htable);
}

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");

    // create a set view
    Set st = htable1.keySet();//  w w  w  .ja v a 2  s  .c om

    System.out.println("Display result: " + st);
}

From source file:Main.java

public static void main(String[] s) {
    //object hash table 
    Hashtable<String, String> table = new Hashtable<String, String>();

    // populate the table
    table.put("key1", "value1");
    table.put("key2", "value2");
    table.put("key3", "from java2s.com");

    System.out.println("Initial collection: " + table);

    // create unmodifiable map
    Map<String, String> m = Collections.unmodifiableMap(table);

    // try to modify the collection
    m.put("key3", "value3");
}

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("Initial hash table value: " + htable1);

    // remove element at key 3
    htable1.remove(3);/*from w ww  .j  a  v  a  2s .c  om*/

    System.out.println("Hash table value after remove: " + htable1);
}

From source file:Main.java

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

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

    // check if table contains "C"
    boolean isavailable = htable.contains("C");

    // display search result
    System.out.println("Hash table contains 'C': " + isavailable);
}

From source file:Main.java

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

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

    // check if table contains key "3"
    boolean isavailable = htable.containsKey(3);

    // display search result
    System.out.println("Hash table contains key '3': " + isavailable);
}

From source file:Main.java

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

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

    // check if table contains value "C"
    boolean isavailable = htable.containsValue("C");

    // display search result
    System.out.println("Hash table contains value 'C': " + isavailable);
}

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("Initial hash table value: " + htable1);

    String returnval = (String) htable1.put(1, "C");

    System.out.println("Return value: " + returnval);

    System.out.println("New hash table value: " + htable1);
}

From source file:Main.java

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

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

    // create a set view
    Set<Entry<Integer, String>> nset = htable.entrySet();

    // display set result
    System.out.println("Set result:" + nset);
}

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");

    // create enumeration for keys
    Enumeration en = htable1.keys();

    System.out.println("Display result:");

    // display search result
    while (en.hasMoreElements()) {
        System.out.println(en.nextElement());
    }//w  w w .  j a  v  a  2 s .c o m
}