length of each element in an array Java

Question

Here is what I\'m trying to use. The method .length doesn\'t work for anything I try, so I\'m not even sure where to begin.

import java.util.ArrayList;

public c         


        

Answer 1

In the following code:

ArrayList lengthList = new ArrayList();
    for (int nums: lengthList) {
        System.out.println(nums.length());  
    }

You are creating an ArrayList lengthList which is empty and trying to iterate over it.

I think you want to iterate over list something like this:

for (String s: list) {
    lengthList.add(s.length());
    System.out.println(s.length());  
}

and add length() of each String to lengthList in each iteration.