Hi,
I want to Map a single key to array of values. Is that possible?
javausers
0
Newbie Poster
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Jump to PostSo, you want to do something like:
Map<String, Object[]> objectMap = new TreeMap<String, Object[]>(); Object[] values = new String[] {"A", "B", "C"}; objectMap.put("First3Letters", values);Is that right? Yes, you can do that.
Jump to PostThat means that each key can map to one entry in the map. The map doesn't care what's in the entry (or "value" as it is called). All it knows is that there is an object there (an array is considered an object).
Does that make sense?
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javausers
0
Newbie Poster
any1 thr..pls help:(
dononelson
2
Junior Poster in Training
So, you want to do something like:
Map<String, Object[]> objectMap = new TreeMap<String, Object[]>();
Object[] values = new String[] {"A", "B", "C"};
objectMap.put("First3Letters", values);Is that right? Yes, you can do that.
javausers
0
Newbie Poster
Exactly, but, I have read that: "each key can map to at most one value"
dononelson
2
Junior Poster in Training
That means that each key can map to one entry in the map. The map doesn't care what's in the entry (or "value" as it is called). All it knows is that there is an object there (an array is considered an object).
Does that make sense?
javausers
0
Newbie Poster
Got it...Thank u:)
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