Extract HashMap array value

[Adrian Airmil]

The value in the hashmap is an array and i wish to get that array to loop through it.

HashMap catPropertyList = new HashMap();
catPropertyList.put("cat22146", new String[] {"Travel", "Specials1"});
   Object catPropertyListValue = catPropertyList.get("cat22146");
   out.print("catPropertyList value " + catPropertyListValue);

However result in the browser is:

catPropertyList value [Ljava.lang.String;@14fa947

Would appreciate if someone could point out whats wrong in that code. Thanks

[Anupam Sinha]

Use generics (if JDK 1.5 or higher) to specify at compile time what would the collection be storing. Else cast the value to a String array and use it.

[Jaime M. Tovar]

The String array is an object by its own. When you ask in the hashmap for the value of the key you get the array object. Try to wrap the array so it will print in a clean way. You can use the array to create a structure that will make it easier to handle the data. Something like a Collection or alike.

[gkumar kumar]

Hi,
Extract array from hashmap for the example you mentioned, code is as follows

HashMap hmap=new HashMap();
hmap.put("storeKey", new String[]{"first","second"});
String obj[]=(String[])hmap.get("storeKey");

for(int i=0;i<obj.length;i++){
System.out.println(obj[i]);
}

[Adrian Airmil]

Thanks everyone. Wrapping it made it work.