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plurals

PO
primarykey
Id
3455896
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
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0
CommunityOwnedDate
CreationDate
2010-08-11T06:43:54.803
FavoriteCount
0
LastActivityDate
2010-08-11T06:43:54.803
LastEditDate
LastEditorUserId
0
OwnerUserId
416135
ParentId
3455449
PostTypeId
2
Score
0
ViewCount
0
LastEditorDisplayName
text
Body
Your code is bad formed here: <pre><code>while(iterator.hasNext()){ hashMap.values().toArray(); for (???) { // lets print array here for example } } </code></pre> You try to iterate using the Iterator "iterator" but next you call to <pre><code>hashMap.values().toArray(); </code></pre> To get the next item of the loop you need to use iterator.next(); to fetch it. Also is good to change the "Object" by String[][] or to <code>List<String[]> or List<List<String>></code>. <pre><code>import java.util.HashMap; import java.util.Map; import java.util.Iterator; import java.util.Map.Entry; public static void main(String[] args) { String[][] layer1 = { {"to1", "TYPE1", "start"}, {"to2", "TYPE1", "start"} }; Map<String,String[][]> map= new HashMap<String,String[][]>(); map.put("layer1", layer1); Iterator<Entry<String, String[][]>> iterator = map.entrySet().iterator(); while(iterator.hasNext()){ Entry<String, String[][]> entry = iterator.next(); System.out.println("Key:" + entry.getKey()); String[][] value = entry.getValue(); for(int x=0;x<value.length;x++){ for(int y=0;y<value[x].length;y++){ System.out.println("String[" + x + "][" + y + "]:" + value[x][y]); } } } } </code></pre> Also you can use "for each" loop to simplify the code insted using the "while": <pre><code>for (Entry<String, String[][]> entry : map.entrySet()){ System.out.println("Key:" + entry.getKey()); String[][] value = entry.getValue(); for(int x=0;x<value.length;x++){ for(int y=0;y<value[x].length;y++){ System.out.println("String[" + x + "][" + y + "]:" + value[x][y]); } } } </code></pre> Or if you only need the values: <pre><code>for (Entry<String, String[][]> entry : map.values()){ String[][] value = entry.getValue(); for(int x=0;x<value.length;x++){ for(int y=0;y<value[x].length;y++){ System.out.println("String[" + x + "][" + y + "]:" + value[x][y]); } } } </code></pre>
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Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POJava Hashmap values to Array
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 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. This table or related slice is empty.
UserOwnerUserId
1. USDubas
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1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
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PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. This table or related slice is empty.
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1. This table or related slice is empty.

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