Wsrtjtyk

I want to match two string in the same list. I want to get words from a string and insert into list. I want to remove white space and separate by commas. Then I want to check two string in that list whether match or not.

Here is my code:

main() {

  List<String> list = new List();

  String str = "dog , dog , cat, tiger, lion, cat";

  String strn = str.replaceAll(" " , "");

  list = strn.split(",");



  print(list.length);

  print(list);



  for (int i=0;i<list.length;i++){

    if (list[i] == list[i+1]) {

      print("same");

    } else{

      print("not same");

    }

    i++;

  }

}

here string only check upto length 4. and white space not removed!

I also noticed that in the for loop you are incrementing i twice, the second being close to the bottom. This causes i to skip some of the indexes, so loop looks at index 0, then 2, then 4, then it stops.

I have refactored your solution slightly. I removed the second i++ and changed i < list.length to i < list.length - 1 to skip the last item as list[i + 1] will throw an out of range exception:

main() {

  List<String> list = new List();

  String str = "dog , dog , cat, tiger, lion, cat";

  String strn = str.replaceAll(" ", "");

  list = strn.split(",");



  print(list.length);

  print(list.join('|'));



  for(int i=0; i < list.length - 1; i++){

    if(list[i] == list[i+1]){

      print("same");

    }

    else{

      print("not same");

    }

  }

}

The result of the loop is so:

same

not same

not same

not same

not same

You can test this out on DartPad