How to get values from arraylist Hashmap

Question

How to get Value according to comparison. I am new in android and comparison is working fine but m not able to get value as it is displaying in arraylist. Below is my code and log-

for (Entry<Integer, List<String>> entry : abbre.entrySet())
    {
        Log.d("Abbrevations values- ", entry.getKey() + " " + entry.getValue());
        if(tid.equals(String.valueOf(entry.getKey()))){
        //String aValue = String.valueOf(entry.getValue());
            Log.d("abbrKey Value: ", String.valueOf(entry.getValue()));
        }
        else{
            Log.d("abbrKey Key: ", String.valueOf(entry.getKey()));
        }
    }

The log -

   06-27 11:27:39.375: D/abbrKey tid:(13602): 27
   06-27 11:27:39.375: D/Abbrevations values-(13602): 23 [8+, 4+, 2-]
   06-27 11:27:39.375: D/abbrKey Key:(13602): 23
   06-27 11:27:39.375: D/Abbrevations values-(13602): 27 [8+, 4+, 2-]
   06-27 11:27:39.375: D/abbrKey Value:(13602): [8+, 4+, 2-]
   06-27 11:27:39.375: D/Abbrevations values-(13602): 22 [8+, 4+, 2-]
   06-27 11:27:39.375: D/abbrKey Key:(13602): 22

Do you want to compare arraylist values with hashmap?

Giru Bhai
– Giru Bhai

2014-06-27 06:31:05 +00:00
Commented Jun 27, 2014 at 6:31 — Giru Bhai
– Giru Bhai, Commented Jun 27, 2014 at 6:31
no I need to get value when I compare its key with tid...

user3705697
– user3705697

2014-06-27 06:37:19 +00:00
Commented Jun 27, 2014 at 6:37 — user3705697
– user3705697, Commented Jun 27, 2014 at 6:37

Kaustubh · Accepted Answer · 2014-06-27 06:36:47Z

2

Here you are using nested maps. so just entry.getValue() will give you list. as you are iterating over Entry<Integer, List<String>>

Hence to get contents of List<String> which is your value for Integer you will have to do this

if(tid.equals(String.valueOf(entry.getKey()))){
    for (String str : entry.getValue()) {
     Log.i("abbrKey Value:", str);  
         // iterating through values which is list in this case
    }
}

Hope this works

answered Jun 27, 2014 at 6:36

Kaustubh

6596 silver badges22 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

user3705697 Over a year ago

Hi.. thank you.. this is working and showing all values but I need to get only that value whose key is being matched with tid... can you please help..

Kaustubh Over a year ago

If the code is working then please up-vote the answer :P i will post another code in just a min

Giru Bhai · Accepted Answer · 2014-06-27 06:46:33Z

1

To get values from Hashmap values(list of String),simply loop it and get all the values,So use your code as

for (Entry<Integer, List<String>> entry : abbre.entrySet())
    {
        Log.d("Abbrevations values- ", entry.getKey() + " " + entry.getValue());
        if(tid.equals(String.valueOf(entry.getKey()))){
        //String aValue = String.valueOf(entry.getValue());
            Log.d("abbrKey Value: ", String.valueOf(entry.getValue()));

         List<String> listValues = entry.getValue();
          for (int i = 0; i < listValues.size(); i++){
                String firstValue = listValues.get(i); 
               // similar get all values 
             }
        }
        else{
            Log.d("abbrKey Key: ", String.valueOf(entry.getKey()));
        }
    }

edited Jun 27, 2014 at 6:46

answered Jun 27, 2014 at 6:40

Giru Bhai

14.4k5 gold badges50 silver badges74 bronze badges

12 Comments

user3705697 Over a year ago

thank you... this is working and I am getting all values but I need to get only that value whose key is being matched with tid.. can you please help...

Giru Bhai Over a year ago

what is the value of tid?

user3705697 Over a year ago

it is dynamic.. it is either 27 or 23 or 22 or any other number which user sends. tid have the values which is also in entry.getKey()

Giru Bhai Over a year ago

@user3705697 but at a time tid value will be one from them,and it will match with key only match.then it will print all the values only once.So my answer will work.

user3705697 Over a year ago

yes only one value will be sent to this method and will be checked and value be will be returned to the other method

|

Rajen Raiyarela · Accepted Answer · 2014-06-27 06:36:28Z

0

You can iterate through the list you get in entry.getvalue() and get the values as below.

for (int i = 0; i < entry.getValue().size(); i++){

}

for (String s: entry.getValue()) {

}

answered Jun 27, 2014 at 6:36

Rajen Raiyarela

5,6344 gold badges23 silver badges41 bronze badges

Collectives™ on Stack Overflow

How to get values from arraylist Hashmap

3 Answers 3

2 Comments

12 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

2 Comments

12 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related