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Java Collection Q&A » HashMap » Cast 

1. Casting a Object to HashMap    stackoverflow.com

I'm having trouble working out how to count instances of Values in a HashMap. I have seen that there is methods attached to the Object class that look as if they are ...

2. ClassCastException When Casting HashMap Iterator to a Concrete Type    stackoverflow.com

I am very new to processing.org and Java. I am trying to store objects in a HashMap, and then iterate over the values of the HashMap, calling methods on the stored ...

3. Retrieving an iterator for a HashMap throws a cast exception    stackoverflow.com

I have some relatively simple code I have made that is supposed to retrieve an iterator to a HashMap & print out the key pair values. My problem is that when I ...

4. how to cast object to double type array in java?    stackoverflow.com

OK so what if i have a method like:

Object[] myTest(int[] a, double[] b){
   return new Object[]{a,b};
}
Now How can i cast the result Object to int[] and double[]? Like ...

5. How do I cast a HashMap to a concrete class?    stackoverflow.com

I have a class, lets call it Fruit, and I have a HashMap. I want to be able to initialize a new instance of Fruit, but set to the values in ...

8. how to cast a HashMap to HashMap?    forums.oracle.com

Does anyone knows how to cast a HashMap to HashMap? The code always get "uses unchecked or unsafe operations", as the session.getAttribute return only a HashMap not HashMap. However, if not using the HashMap , it also raise the "uses unchecked or unsafe operations" warning. HashMap hmpUnreportedDetail = new HashMap(); hmpUnreportedDetail = (HashMap)session.getAttribute("UnreportedDetailObjects"); Thanks!

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