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How to split the values from Multihaspmap ?

Posted on 2013-05-30
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Last Modified: 2013-05-31
public static void main(String[] args) {
                      MultiHashMap mp=new MultiHashMap();
                      StringBuilder b = new StringBuilder();
                      mp.put("a", 10);
                      mp.put("a", 11);
                      mp.put("a", 12);
                      mp.put("b", 13);
                      mp.put("c", 14);
                      mp.put("e", 15);
                      mp.put("b", 1);
                      mp.put("b", 2);
                      mp.put("b", 3);
                      List list = null;

                      Set set = mp.entrySet();
                      Iterator i = set.iterator();
                      while(i.hasNext()) {
                         Map.Entry me = (Map.Entry)i.next();
                         //list=(List)mp.get(me.getKey());
                         System.out.println("key:"+me.getKey());
                         System.out.println("value:"+me.getValue());
}
}

Above program output is :

key:e  value:[15]
key:b  value:[13, 1, 2, 3]
key:c  value:[14]
key:a  value:[10, 11, 12]

I want to print the values like
15
13 1 2 3
14
10 11 12

How to print the values as like above format ?
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Question by:Rose_Taylor
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4 Comments
 
LVL 86

Expert Comment

by:CEHJ
ID: 39209418
Try

System.out.println(me.getKey());
System.out.println(me.getValue().replaceAll("^\\[|\\]$", "").replaceAll(",", " "));

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Author Comment

by:Rose_Taylor
ID: 39209596
Great. Thanks for post.

public static void main(String[] args) {
                      MultiHashMap mp=new MultiHashMap();
                      StringBuilder b = new StringBuilder();
                      mp.put("a", 10);
                      mp.put("a", 11);
                      mp.put("a", 12);
                      mp.put("b", 13);
                      mp.put("c", 14);
                      mp.put("e", 15);
                      mp.put("b", 1);
                      mp.put("b", 2);
                      mp.put("b", 3);
                      List list = null;

                      Set set = mp.entrySet();
                      Iterator i = set.iterator();
                      while(i.hasNext()) {
                         Map.Entry me = (Map.Entry)i.next();
                         list=(List)mp.get(me.getKey());
                        
                         for(int j=0;j<list.size();j++)
                         {
                             
                          System.out.println(me.getKey()+": value :"+list.get(j));
                         }
                      }
                      
                   }

Above program output is :

e: value :15
b: value :13
b: value :1
b: value :2
b: value :3
c: value :14
a: value :10
a: value :11
a: value :12

I would like to get values :

e: value :15
b: value :13 1 2 3
b: value :13 1 2 3
b: value :13 1 2 3
b: value :13 1 2 3
c: value :14
a: value :10 11 12
a: value :10 11 12
a: value :10 11 12

How to get the values as like above ?
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LVL 86

Accepted Solution

by:
CEHJ earned 1500 total points
ID: 39209997
System.out.println(me.getKey()+": value :"+list.get(j).toString() .replaceAll("^\\[|\\]$", "").replaceAll(",", " ")); 

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Author Closing Comment

by:Rose_Taylor
ID: 39211471
Good
0

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