What is the functionality of the following piece of code?
public Object delete_key()
{
if(count == 0)
{
System.out.println("Q is empty");
System.exit(0);
}
else
{
Node cur = head.getNext();
Node dup = cur.getNext();
Object e = cur.getEle();
head.setNext(dup);
count--;
return e;
}
}
public Object delete_key()
{
if(count == 0)
{
System.out.println("Q is empty");
System.exit(0);
}
else
{
Node cur = head.getNext();
Node dup = cur.getNext();
Object e = cur.getEle();
head.setNext(dup);
count--;
return e;
}
}A. Delete the second element in the list
B. Return but not delete the second element in the list
C. Delete the first element in the list
D. Return but not delete the first element in the list
Answer: Option C
This Question Belongs to Data Structure >> Introduction To Data Structures
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