Chapter 2: 4-40

4. 12.5
5. 6
6. 13.0
7. 2.6
8. 2
9. 3
10. 4
11. 1
12. 7
13. 5
14. 2.4
15. 2
16. 2.4
17. 2.0
18. 6
19. 4
20. 4
21. 7
22. 0
23. float a = 34.2;
24. int a = 10;
25. boolean a = false;
26. char a = B;
27. int total = a + b + c;
	System.out.println( total );
28. float average = (a + b) / 2;
	System.out.println( average );
29. int remainder = a % b;
	System.out.println( remainder );
30. a++;
31. a*=3;
32. b = (a + 3) - 7;
	b = a*4;
	a = b*b;
	a = b*3*5;
	b = a/2;
	b = a%3;
33. 3.3 is not an integer
34. the 2 variables aren't compatible because double is greater than float
35. 7.5 is not an integer
36. Exception in thread "main" java.lang.ArithmeticException: / by zero
37. a--, not a -
38. no error, because 67 is a capital C, which is one character
39. yes, boolean can only be true or false
40. the problem is that 26.4 is not an integer; replace int with double