HashMap Example in Java Collection Framework. This Java HashMap example describes the basic operations performed on the HashMap in Collection Framework.
Program:
import java.util.*;
class HashMapDemo{
public static void main(String[] args) {
HashMap hm = new HashMap();
hm.put(“Emp Name”, “EshuSoft”);
hm.put(“Designation”, “Technical Manager”);
hm.put(“Company”, “EshuSoft Technologies”);
hm.put(“Location”, “Bangalore”);
System.out.println(“Company:” + hm.get(“Company”));
System.out.println(“HashMap Values:”);
System.out.println(hm);
Set s = hm.entrySet();
Iterator it = s.iterator();
while (it.hasNext()) {
Map.Entry me = (Map.Entry) it.next();
System.out.println(“key: ” + me.getKey() + ” value:” + me.getValue());
}
}
}
Result:
Company:EshuSoft Technologies
HashMap Values:
{Emp Name=EshuSoft, Designation=Technical Manager, Company=EshuSoft Technologies, Location=Bangalore}
key: Emp Name value:EshuSoft
key: Designation value:Technical Manager
key: Company value:EshuSoft Technologies
key: Location value:Bangalore
This HashMap example looks very simple and easy to understand. thanks for your example.
I Have to find this type output and what is the source code for this output
OUTPUT:
Enter the number of Countries to Enter:3
Enter Country Id:1
Enter Country Name:India
ENTER ANOTHER COUNTRY
Enter Country Id:2
Enter Country Name:AUS
ENTER ANOTHER COUNTRY
Enter Country Id:3
Enter Country Name:USA
Enter NO.OF STATES TO THE CORRESPONDING COUNTRIES:6
Enter Country Id:1
Enter State:AP,UP,TN
Enter Country Id:2
Enter State:syd,mus,ghr
Enter Country Id:3
Enter State: meb,ske,sdi
U R Entered The Countries with Corresponding States as given bellow and the countries are in Sorting order
AUS:syd,mus,ghr
IND:AP,UP,TN
USA:meb,ske,sdi
Please send the above output source code to my email-id