Java data structure suggestion.
- by techoverflow
Hi folks,
I am a newbie in this field so please excuse my silly mistakes :)
So the issue I am facing is:
On my webpage, I am displaying a table. For now my issue is concerned with three columns of the table.
First is : Area Code
Second is : Zone Code
Third is: Value
The relationship between these three is:
1 Area Code has 6 different Zone code's and all those 6 Zone codes have corresponding "Value"
I need a data structer that would give me the flexibility to get a "Value" for a Zone code, which falls under a particular Area code.
I have the same zone codes for all the Area codes:
Zone codes are: 111, 222, 333, 444, 555, 666
After surfing your stackoverflow, I thought I can go with this structure:
Map<Integer, Map<Integer, Double>> retailPrices = new HashMap<Integer, Map<Integer, Double>>();
Map<Integer, Double> codes = new HashMap<Integer, Double>();
where reatailPrices would hold an Area Code and a Map of Zone code as Key and "Value" as Value.
but when I am trying to populate this through a SQL resultset, I am getting the following error:
The method put(Integer, Map<Integer,Double>) in the type
Map is not applicable for the arguments (Integer, Double)
on line:
`while(oResult.next())
retailPrices.put((new Integer(oResult.getString("AREA"))), (pegPlPrices.put(new Integer(oResult.getString("ZONE_CODE")), new Double(oResult.getString("VALUE")))));
}`
please help me figure out this problem. Am I following the right approach?
