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HashMap implementation in Java
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import java.util.HashMap; | |
import java.util.Scanner; | |
public class HashMapLogin | |
{ | |
public static void main(String[] args) | |
{ | |
//Instantiating HashMap class with <Key,Value> pair both represented in String | |
HashMap<String,String> creds=new HashMap(); | |
//Defining two Scanner objects for user input | |
Scanner scanID=new Scanner(System.in); | |
Scanner scanPass=new Scanner(System.in); | |
for(int i=0;i<=5;i++) | |
{ | |
System.out.println("Enter ID: "); | |
String id=scanID.next(); | |
System.out.println("Enter Password for "+id); | |
String pass=scanPass.next(); | |
creds.put(id,pass); | |
} | |
System.out.println("Enter ID to query the Password: "); | |
Scanner scanIDQuery=new Scanner(System.in); | |
String idQuery=scanIDQuery.next(); | |
System.out.println("The password for ID: "+idQuery+" is: "+creds.get(idQuery)); | |
} | |
} |
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