Question 21 pts Assume this class definition: class Node { public char data; public Node next; public Node(char data, Node next) { this.data = data; this.next = next; } } Which of the following single Java statements has the same effect as this sequence of Java statements: Node newNode = new Node(); newNode.element = 'n'; newNode.next = curr.next; curr.next = newNode; Group of answer choices Node newNode = new Node('n', curr.next); curr = new Node('n', curr); curr.next = new Node('n', curr.next); curr.next = new Node(); none of the above

Question 101 pts

Evaluate this postfix expression: 1 2 3 2 ^ * +

(Hint: Use a stack.)