Java HashMap put in an enhanced for loop just like an ArrayList

You can't directly loop a Map like that in Java.

You can, however, loop the keys:

for (SomeKeyObject key : map.keySet())

The values:

for (SomeValueObject value : map.values())

Or even its entries:

for (Map.Entry<SomeKeyObject, SomeValueObject> entry : map.entrySet())

you can do

for (String key : hashmap.keySet()) {
    String value = hashmap.get(key);
}

You can do it by using an Iterator http://docs.oracle.com/javase/7/docs/api/java/util/Iterator.html.

    HashMap<String, String> yourHashMap = new HashMap<>();
    Iterator<Map.Entry<String, String>> it = yourHashMap.entrySet().iterator();
    while(it.hasNext()){
        it.next();
        System.out.println(yourHashMap.get(it));
    }

At first sight it might be tempting to use a for-loop instead of an Iterator, but

you will need an Iterator if you want to modify the elements in your HashMap while iterating over them!

When using a for-loop you cannot remove elements from your map while

 it.remove()

would work well in the above example.

Use this

map.forEach((k, v) -> System.out.printf("%s %s%n", k, v));

public class IterableHashMap<T,U> extends HashMap implements Iterable
    {

        @Override
        public Iterator iterator() {
            // TODO Auto-generated method stub

            return this.keySet().iterator();
        }



    }



    public static void main(String[] args) {

        testA a=new testA();
        IterableHashMap test=a.new IterableHashMap<Object,Object>();
        for(Object o:test)
        {

        }
    }