3:42 pm - Monday November 18, 1191

Java Program to Get Size of Java Hashtable Example

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import java.util.Hashtable;

class GetSizeOfHashtable {
public static void main(String[] args) {
// creating Hashtable Object
Hashtable ht = new Hashtable();
System.out.println("Size of Hashtable : " + ht.size());
// put() method is used to insert the elements in a list
ht.put("1", "One");
ht.put("2", "Two");
ht.put("3", "Three");
System.out.println("Size of Hashtable after addition : " + ht.size());
// remove() method is used to removea element from the table ussig index
// position
Object obj = ht.remove("2");
System.out.println("Size of Hashtable after removal : " + ht.size());
}
}

Output:

D:\CandidJava\Util\HaashTable>javac  GetSizeOfHashtable.java

Note: GetSizeOfHashtable.java uses unchecked or unsafe operations.

Note: Recompile with -Xlint:unchecked for details.

D:\CandidJava\Util\HashTable>java  GetSizeOfHashtable

Size of Hashtable : 0

Size of Hashtable after addition : 3

Size of Hashtable after removal : 2

Filed in: Z-A All Java Codes

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