@Override
public int pop() {
// TODO Auto-generated method stub
ListNode temp = head;
head = head.next;
return temp.getVal();
}
@Override
public int peek() {
// TODO Auto-generated method stub
return head.getVal();
}
@Override
public int pop() {
// TODO Auto-generated method stub
ListNode temp = head;
head = head.next;
return temp.getVal();
}
@Override
public int peek() {
// TODO Auto-generated method stub
return head.getVal();
}