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ii) Analyse the following Java code carefully. Write the output as produced by each printlnstatement. (In your answer just write the particular output statement or line numberfollowed by the exact output it produces). (11 Marks)1. public class Test {2. public static void main(String[] args) {3. System.out.println((int)(Math.random() * 10) / 10);4. System.out.println(Math.pow(3, 2));5. System.out.println(35 % 7);6. System.out.println(3 + 4.5 * 2 < 2 * 9.5);7. int number = 14;8. if (number % 7 == 0)9. System.out.println(8 * number);10. System.out.println(2 * number);11. int x = 1942;12. System.out.println(x / 100);13. System.out.println(x % 100);14. System.out.println(x + " is " + ((x % 2 == 0) ?"even" : "odd"));15. int y = -5;16. ++y;17. System.out.println(y);18. int value = 453;19. int d1 = value % 10;20. int d2 = (value / 10) % 10;21. int d3 = (value / 100) % 10;22. System.out.println("" + d1 + d2 + d3);23. }24. }

Question

ii) Analyse the following Java code carefully. Write the output as produced by each printlnstatement. (In your answer just write the particular output statement or line numberfollowed by the exact output it produces). (11 Marks)1. public class Test {2. public static void main(String[] args) {3. System.out.println((int)(Math.random() * 10) / 10);4. System.out.println(Math.pow(3, 2));5. System.out.println(35 % 7);6. System.out.println(3 + 4.5 * 2 < 2 * 9.5);7. int number = 14;8. if (number % 7 == 0)9. System.out.println(8 * number);10. System.out.println(2 * number);11. int x = 1942;12. System.out.println(x / 100);13. System.out.println(x % 100);14. System.out.println(x + " is " + ((x % 2 == 0) ?"even" : "odd"));15. int y = -5;16. ++y;17. System.out.println(y);18. int value = 453;19. int d1 = value % 10;20. int d2 = (value / 10) % 10;21. int d3 = (value / 100) % 10;22. System.out.println("" + d1 + d2 + d3);23. }24. }

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Solution

Sure, here is the output of each println statement in the given Java code:

  1. System.out.println((int)(Math.random() * 10) / 10); Output: 0 Explanation: Math.random() generates a random number between 0.0 and 1.0. When this is multiplied by 10, the result is a random number between 0.0 and 10.0. Casting this to an int truncates the decimal part, resulting in an integer between 0 and 9. Dividing this by 10 gives 0 because integer division is used.

  2. System.out.println(Math.pow(3, 2)); Output: 9.0 Explanation: Math.pow(3, 2) calculates 3 to the power of 2, which is 9.

  3. System.out.println(35 % 7); Output: 0 Explanation: 35 % 7 calculates the remainder of 35 divided by 7, which is 0.

  4. System.out.println(3 + 4.5 * 2 < 2 * 9.5); Output: true Explanation: The expression 3 + 4.5 * 2 < 2 * 9.5 evaluates to true because 12 is less than 19.

  5. System.out.println(8 * number); Output: 112 Explanation: This line is executed if the number is divisible by 7. Since 14 is divisible by 7, 8 * 14 is calculated, which is 112.

  6. System.out.println(2 * number); Output: 28 Explanation: 2 * 14 is calculated, which is 28.

  7. System.out.println(x / 100); Output: 19 Explanation: 1942 divided by 100 gives 19.

  8. System.out.println(x % 100); Output: 42 Explanation: The remainder of 1942 divided by 100 is 42.

  9. System.out.println(x + " is " + ((x % 2 == 0) ?"even" : "odd")); Output: 1942 is even Explanation: The remainder of 1942 divided by 2 is 0, so 1942 is even.

  10. System.out.println(y); Output: -4 Explanation: The variable y is incremented before it is printed, so -5 becomes -4.

  11. System.out.println("" + d1 + d2 + d3); Output: 354 Explanation: The last digit of 453 is 3 (d1), the second last digit is 5 (d2), and the third last digit is 4 (d3). These are concatenated into a string and printed.

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