import java.util.HashMap; import java.util.Scanner; public class HashMapExample { public static void main(String args[]) { HashMap<String, Long> map = new HashMap<String, Long>(); System.out.println("Enter the number of records you need to store: "); Scanner sc = new Scanner(System.in); int num = sc.nextInt(); for(int i=0; i<num; i++) { System.out.println("Enter key (String): "); String key = sc.next(); System.out.println("Enter value (Long): "); long value = sc.nextLong(); map.put(key, value); } System.out.println("Values Stored . . . . . ."); System.out.println("Enter a name (key): "); String reqKey = sc.next(); System.out.println("Phone number (value): "+map.get(reqKey)); } }