Java: Numeric Expression Exercises

Name ______________________

Assume the following:

int i;
int j = 6;
int k = 10;;
byte by;
double d = 6.2;
float f = 3.9F;

Give the values of the following expressions, or "X" for illegal.

1	__________	`1 + 2 * 3`
2	__________	`1 + 2 - 3 * 4 / 5`
3	__________	`3 / 2`
4	__________	`3 / 2.0`
5	__________	`3.0 / 2`
6	__________	`1+2 * 3+4`
7	__________	`5 % 3`
8	__________	`6 % 3`
9	__________	`11 % 11`
10	__________	`8 % 2`
11	__________	`1 % 999`
12	__________	`20%3*2/2`
13	__________	`(((k)))`
14	__________	`k++`
15	__________	`++k`
16	__________	`7++`
17	__________	`k++ + ++j`
18	__________	`k+++++j`
19	__________	`3 = 4`
20	__________	`3 == 4`

21	__________	`by = k`
22	__________	`by = (byte)k`
23	__________	`k = (int)j`
24	__________	`f = k`
25	__________	`k = f`
26	__________	`k = (int)f`
27	__________	`d = f`
28	__________	`f = d`
29	__________	`f = (float)d`
30	__________	`f = 2.0`
31	__________	`f = 2.0e3F`
32	__________	`by = 1`
33	__________	`k > j > 3`
34	__________	`k > j && > 3`
35	__________	`k > j && k > 3`
36	__________	`k = j = 5`
37	__________	`k = (j = 5)`
38	__________	`(k = j) = 5`
39	__________	`k += 1`
40	__________	`k *= 2`

41	__________	`k /= 2`
42	__________	`k = (k>j) ? k : j+1`
43	__________	`13 % 2`
44	__________	`k++ + ++k`
45	__________	`k = (int)f`
46	__________	`(k%2==0) ? -1 : 1`
47	__________	`(int)(f + 0.5) == (int)d`
48	__________	`22 == 22.0`
49	__________	`(0.1 + 0.1 + 0.1) == 0.3`
50	__________	`(0.1 + 0.1 + 0.1) - 0.3`

Numeric Expression Answers