Given the partial ArrayList class declaration below, select an expression to complete the contains method. public class ArrayList
{
Private Object[] elements;
Private int currentSize;
Public ArrayList()
{
Final int INITIAL_SIZE = 10;
Elements = new Object[INITIAL_SIZE];
CurrentSize = 0;
}
Public boolean contains(Object item)
{
For (int i = 0; ________________ ; i++)
{
If (elements[i].equals(item))
{
Return true;
}
}
Return false;
}
)..
}
A) i

Question

Given the partial ArrayList class declaration below, select an expression to complete the contains method. public class ArrayList
{
Private Object[] elements;
Private int currentSize;
Public ArrayList()
{
Final int INITIAL_SIZE = 10;
Elements = new Object[INITIAL_SIZE];
CurrentSize = 0;
}
Public boolean contains(Object item)
{
For (int i = 0; ________________ ; i++)
{
If (elements[i].equals(item))
{
Return true;
}
}
Return false;
}
)..
}
A) i < currentSize
B) i <= currentSize
C) i < elements.length
D) i <= elements.length

Quizplus · Accepted Answer

The contains method should iterate through the elements array until it finds the item or reaches the end of the array. The correct expression to complete the for loop is i < currentSize, because currentSize represents the number of elements in the array.

Given the Partial ArrayList Class Declaration Below, Select an Expression