Assume an array-based list implemented by a class that uses the fields
String [ ] list;
int nElements;
to represent the array of elements,and the number of elements currently stored.Show the code for a method String set(int index,String str)that sets the element at the given index to str and returns the element previously stored there.

Question

Quizplus · Accepted Answer

The Answer is String set(int index,String str)
{
if (index < 0 || index >= nElements)
throw NoSuchElementException();
String retValue = list[index];
list[index] = str;
return retValue;
}

Assume an Array-Based List Implemented by a Class That Uses