[Solved] ArrayList remove methods [closed]

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All the 0’s will not be removed (which is your intention).

After the first iteration, your list will be [0, 4, 2, 5, 0, 3, 0].
Now, k=1. You will only be looking from the element 4 at index = 1.

Instead, try using Iterators:

Example: 

for (Iterator<String> iter = list.iterator(); iter.hasNext();) {
  String s = iter.next();
  if (s.equals("to_remove")) {
    iter.remove();
  }
}

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solved ArrayList remove methods [closed]