Finder File Edit View Go Window Help sample-final.pdf abood file://Users/abdulrahmanairashidi/Downloads/sample-final.pdf 1. (20 points) Multiple Choice Questions. (circle the correct answer) a. Suppose we want to create a variable to store the number of students in a class. The number of students can change while the program is running. Which of the following would be the most appropriate variable declaration for this? (i) double aunStudents; (ii) String studentcount; ii) int numStudents; (iv) final int NUM_STUDENTS; b. What is the output of the following statement? Systen.out.printIn(.Next year. y dog will be " + 2 + 1 + years old."); (i) Next year, my dog will be 3 years old. ii) Next year, my dog will be 2 years old. (i Next year, my dog will be 2 1 years old. (iv) Next year, my dog will be 21 years old c. What output is produced by the following statements? int numl-22; int num2 10; double result = (double) (num1 / num2); Systen.out.println(result) (ii) 0 (iv) 0.0 d. Consider the following declaration: JPanel key padPanel = new JPanel(); keypadPanel.setLayout (new GridLayout (4,4)); JButton [][] buttons new JButton [4] [4]; for (int i- 0; i