Operators and Expressions

Let's test your knowledge on operators and expressions in Java with the following problem statements:

1. Write an expression to add two integers a and b.

2. Calculate the reminder when dividing an integer dividend by another integer divisor.

3. Evaluate the expression 5 * (10 + 3).

4. Find the result of the expression (8 - 3) * 2 / 5.

5. Determine the value of the expression 10 % 3.

6. Calculate the average of two numbers num1 and num2.

7. Determine whether an integer number is even or odd.

8. Calculate the area of a rectangle with length length and width width.

9. Determine if an integer year is a leap year.

10. Calculate the hypotenuse of a right triangle given the lengths of its two legs a and b.

11. Determine if a given character ch is an uppercase letter.

12. Convert temperature from Celsius to Fahrenheit using the formula F = (C × 9/5) + 32.

13. Determine if an integer num is a multiple of 5.

14. Calculate the perimeter of a square with side length side.

15. Determine the result of the expression (10 > 5) && (8 < 3).

16. Determine the result of the expression (true || false) && (true && false).

17. Evaluate the expression (4 * 3) == (6 * 2).

18. Determine the result of the expression !(5 >= 10).

19. Calculate the square of a number x.

20. Determine the result of the expression (7 != 5) || (3 <= 3).

21. Write an expression to calculate the area of a circle with radius r.

22. Calculate the value of the expression (5 + 3) * 2.

23. Determine the result of the expression (10 - 4) / 2.

24. Evaluate the expression 2 * (3 + 4) - 5.

25. Write an expression to convert temperature from Celsius to Fahrenheit using the formula F = (C × 9/5) + 32.

26. Calculate the average of three numbers num1, num2, and num3.

27. Determine if a given number x is greater than 10 and less than 20.

28. Calculate the volume of a cylinder given its radius r and height h.

29. Determine the result of the expression 5 * 3 - 2 / 4.

30. Write an expression to calculate the square root of a number x.

31. Determine if a given number num is divisible by both 2 and 3.

32. Calculate the total cost of purchasing quantity items at price each, including a sales tax of 8%.

33. Determine the result of the expression (4 + 5) == (7 - 2).

34. Calculate the distance between two points (x1, y1) and (x2, y2) using the distance formula.

35. Determine if a given number num is a perfect square.

36. Write an expression to find the maximum of two numbers a and b.

37. Determine if a given character ch is a vowel.

38. Calculate the factorial of a non-negative integer n.

39. Determine if a given year year is a leap year.

40. Write an expression to check if a given number num is positive, negative, or zero.

These problems cover various types of operators and expressions in Java, including arithmetic, relational, logical, and conditional expressions.