Why does this not work? (Javascript) public void addStep(List<String> instructions) { Iterator<String> iter =...

Why does this not work? (Javascript)

public void addStep(List<String> instructions) {
       Iterator<String> iter = instructions.iterator();
       while (iter.hasNext()) {
           String step = iter.next();
           if (instructions.contains(step) == false) {
               iter.add(step);
           }
       }
   }

Expert Solution

here the problem is Iterator can't have add method so we can use ListIterator to acheive this

public void addStep(List<String> instructions) {

ListIterator<String> iter = instructions.listIterator();

while (iter.hasNext()) {

String step = iter.next();

if (instructions.contains(step) == false) {

iter.add(step);

}

venereology answered 1 month ago

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