Hashmaps

Asked Mar 18 '15 at 15:42

Active Mar 18 '15 at 15:43

Viewed 94 times

Im currently working on a project in which I am using hashmaps of type . The string wont change, but is it at all possible for me to change the integer value from a method call if you catch my drift.

commoditiesMap = new HashMap<String, Integer>();
commoditiesMap.put("Steel", 10);

public void addInteger(HashMap<String, Integer> commoditiesMap)
{

}

Basically i need to alter the value of 10 so it can be raised or lowered when needed.

edited Mar 18 '15 at 15:43

Jon Skeet

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asked Mar 18 '15 at 15:42

statik

1

Get the current value, use it to create a new value, put the new value. – Sotirios Delimanolis Mar 18 '15 at 15:43
How would I do that? – statik Mar 18 '15 at 15:59
Refresh this page. The duplicate shows you how. – Sotirios Delimanolis Mar 18 '15 at 16:00
Bear in mind this is a board game. Let me re-phrase the question. I have a bank class that picks a random card each turn. Eg. "Steel is up by $2" or "Shipping is down by $4". In a separate class called board i have the above code. Is it possible to add a value depending on what card comes up? – statik Mar 18 '15 at 16:11
Yes, read the duplicate. – Sotirios Delimanolis Mar 18 '15 at 16:13

Hashmaps

0 Answers0