CSE 2221 Midterm 2 Exam Guide 2025. | Exam Revision Questions And Correct Answers | Graded A+ | 2025 Update |

CSE 2221 Midterm 2 Exam Guide 2025. | Exam Revision Questions And
Correct Answers | Graded A+ | 2025 Update |




XMLTree Method .label() - ANSWER- Returns the name of the root of the tree in the form of
a string


XMLTree Method .hasTag() - ANSWER- Returns true if the XMLTree is a tag node and not a
text node


XMLMethod .hasAttribute(String name) - ANSWER- Returns true if the XMLTree has an
attribute with the label of name


XMLTree Method .attributeValue(String name) - ANSWER- Returns the string value of the
attribute whose label is name


XMLTree Method .numberOfChildren() - ANSWER- Returns the number of direct children of
the XMLTree


XMLTree .child(int k) - ANSWER- Returns the XMLTree that is the kth child of the XMLTree
used


XMLTree toString() - ANSWER- Returns the XMLTree in the form of a string



NaturalNumber n = new NaturalNumber2() - ANSWER- n=0



NaturalNumber n = new NaturalNumber2(int k) - ANSWER- n=k



NaturalNumber n = new NaturalNumber2(NaturalNumber m) - ANSWER- n=m

, NaturalNumber n = new NaturalNumber2("32") - ANSWER- n = 32



n.add(NaturalNumber k); - ANSWER- n=n+k



n.subtract(NaturalNumber k); - ANSWER- n=n-k



n.multiply(NaturalNumber k); - ANSWER- n=n*k



NaturalNumber r = n.divide(NaturalNumber k); - ANSWER- n = n/k
k=k
r=n%k


n.power(NaturalNumber k); - ANSWER- n=n^k



n.root(k) - ANSWER- n = n ^ (1 / k). If n is say 24 and k = 2, n will be 4 after the method call
because n always rounds down if it's not a perfect square, cube, etc.


n.copyFrom(k) - ANSWER- n=k
k=k


int comp = n.compareTo(k); - ANSWER- comp = positive integer if n > k or negative integer
if n < k or 0 if n = k


n.multiplyBy10(k); - ANSWER- n = (#n * 10) + k



int r = n.divideBy10(); - ANSWER- r = n % 10;
n = n / 10