How to check if a list of strings contains certain value?

Question

I am trying to see if a ArrayList of strings contains a word located in another string , but i am doing something wrong. Here is my code: Here is an example of my ArrayList

titles = {"Sodium " , " Lithium " , "Allura Red AC"};

String ocrRes = "I want some sugar  , and some coffee with Allura Red AC , Ponceau 4R ";

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

            if (ocrRes.contains(titles.get(i)) )
            {
                ocrResult.setText(titles.get(i));
            }


    }

Any help will be much appreciated. Thank you in advance.

Answer 1

Here is an outline of how you would find a specific word in a string array:

String[] array;
//will return the index of the array where word found.

int checkWord(String searchWord)
{
   for(int i = 0; i < array.length; i++)
   { 
           if (searchWord.equals(array[i]))
               return i;
   }
}

You could implement something like this to find a word in your array, hope this helps :)

Answer 2

Your'e code seems to work fine... you probably didn't use the ArrayList as u should

use like this:

    List<String> titles = new ArrayList<>();
    titles.add("Sodium");
    titles.add("Lithium");
    titles.add("Allura Red AC");

    String ocrRes = "I want some sugar  , and some coffee with Allura Red AC , Ponceau 4R ";

    for (int i = 0; i < titles.size() ; i++)
    {
        if (ocrRes.contains(titles.get(i)) )
        {
           ocrResult.setText(titles.get(i));
        }
    }

Edit:

Iv'e seen on your comments to other answeres u need another list with corresponding indexes so just create an array list the same why as I showed u in the code above...

Btw the the way u seem to init your list is like your initing an array which is different type and looks like this:

String[] array = {"Sodium " , " Lithium " , "Allura Red AC"};

gl

Answer 3

Here's another option using ListIterator

    String ocrRes = "I want some sugar  , and some coffee with Allura Red AC , Ponceau 4R ";

    List<String> titles = Arrays.asList("Sodium", "Lithium", "Allura Red AC");
    ListIterator<String> iterator = titles.listIterator();

    while (iterator.hasNext()) {
        String title = iterator.next();

        if(ocrRes.contains(title)) {
            System.out.println(title);
        }
    }

Answer 4

You can try this one. If a ArrayList of strings contains a word located in another String . It will display the that String only.

Sample Code

String str = "I want some sugar  , and some coffee with Allura Red AC , Ponceau 4R ";
    List<String> myList = Arrays.asList("Sodium", "Lithium", "Allura Red AC");
    myList.forEach(new Consumer<String>() {
            public void accept(String s) {
                if(str.contains(s)) {
                    System.out.println(s);
                }
            }

        });