How to iterate through HashMap

import java.util.HashMap;
import java.util.Map;
import java.util.Set;

public class HashMapIterate {

public static void main(String[] args) {

Map<Integer,String> hm = new HashMap<Integer,String>();

/*
* Associates the specified value with the specified key in
this map (optional operation). If the map previously
contained a mapping for the key, the old value is
replaced by the specified value
*/
hm.put(1,”ankush”);
hm.put(2, “amit”);
hm.put(3,”shivam”);
hm.put(4,”ankit”);
hm.put(5, “yogesh”);

Set<Integer> keys = hm.keySet();

for (Integer key : keys) {
System.out.println(“key =”+key+” value = “+hm.get(key));
}

}
}

Output:

key =1 value = ankush

key =2 value = amit

key =3 value = shivam

key =4 value = ankit

key =5 value = yogesh

 

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