CODEWITHSUNDEEP
javaarraylistcomparison
I just want to learn.
I just want to learn.

Reputation: 55

Comparing individual elements of two different arraylists?

I have created a program with two arraylists (packOfCardsOne and packOfCardsTwo) each of which has ten random values stored, I know how to compare the two arraylists but I want to be able to compare individual elements. I as thinking something like this below but I'm unable to get it to work:

  if (packOfCardsOne > packOfCardsTwo) {

      packofCardsOne.get(0);
      packOfCardsTwo.get(0); 
  }

Once compared as part of the if statement I'd then like to have a print statement with some output.

Upvotes: 1

Views: 1756

Answers (2)

ANIL VISHVKARMA
ANIL VISHVKARMA

Reputation: 363

Assuming you are having 2 ArrayList list1 and list2 with size 10. You can simply iterate one list parallel to second list by comparing the values stored in both the list as shown below - 

 List<String> list1 = new ArrayList<String>();
 list1.add("first");
 list1.add("second");
 list1.add("third");
 List<String> list2 = new ArrayList<String>();
 list2.add("first");
 list2.add("second");
 list2.add("third1");
 for (int i = 0; i<list2.size(); i++)
 {
     System.out.println(list1.contains(list2.get(i)));
 }

It will iterate the elements of list1 and compare the value with list2 elements. If value of list1 and list2 are equal it will return true else false.

Upvotes: 5

Roel Strolenberg
Roel Strolenberg

Reputation: 2950

Assuming you have 2 ArrayLists both of size 10, you can loop through them and compare each item individually:

for (int index = 0; index < 10; index++){
    if (packOfCardsOne.get(index) > packOfCardsTwo.get(index)){
        System.out.println("First pack's card is higher...")
    } else {
        System.out.println("Second pack's card is higher...")
    }
}

You can replace the .equals check with whatever you want as I'm unsure what's in the lists

Upvotes: 0

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