Java, how do I create a hash map outside of main but refer to it in main or another method
<blockquote>
  <p>Java, how do I create a hash map outside of main but refer to it in main or another method
  import java.util.*;</p>
</blockquote>

<pre><code>import java.util.Map.Entry;

// Create a hash map 

        HashMap&lt;String, Double&gt; hm = new HashMap&lt;String, Double&gt;();

// Put elements into the map

        hm.put("John Doe", new Double(3434.34)); 
        hm.put("Tom Smith", new Double(123.22)); 
        hm.put("Jane Baker", new Double(1378.00)); 
        hm.put("Todd Hall", new Double(99.22)); 
        hm.put("Ralph Smith", new Double(-19.08));

class HashMapDemo 
{ 

    public static void main(String args[])
    { 
        // Get a set of the entries

        Set&lt;Entry&lt; String, Double&gt; &gt; set = hm.entrySet();

        // Get an iterator

        Iterator&lt;Entry&lt; String, Double&gt; &gt; i = set.iterator();

        // Display elements

        while(i.hasNext())
        { 
            Entry&lt; String, Double &gt; me = i.next(); 
            System.out.print( me.getKey() + ": " ); 
            System.out.println( me.getValue() ); 
        }

        System.out.println();

        // Deposit 1000 into John Doe's account

        double balance = hm.get( "John Doe" ).doubleValue(); 
        hm.put( "John Doe", new Double(balance + 1000) ); 
        System.out.println( "John Doe's new balance: " + hm.get("John Doe"));

    } 
}
</code></pre>
