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import java.util.*;public class HashMapDemo { public static void main(String[] args) { HashMap hm = new HashMap(); hm.put("Rohit", new Double(3434.34)); hm.put("Mohit", new Double(123.22)); hm.put("Ashish", new Double(1200.34)); hm.put("Khariwal", new Double(99.34)); hm.put("Pankaj", new Double(-19.34)); Set set = hm.entrySet(); Iterator i = set.iterator(); while(i.hasNext()){ Map.Entry me = (Map.Entry)i.next(); System.out.println(me.getKey() + " : " + me.getValue() ); } //deposit into Rohit's Account double balance = ((Double)hm.get("Rohit")).doubleValue(); hm.put("Rohit", new Double(balance + 1000)); System.out.println("Rohit new balance : " + hm.get("Rohit")); }}
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