| Casts have higher precedence than binary expressions, so `(int) 0.5f * 100` is |
| equivalent to `((int) 0.5f) * 100` = `0 * 100` = `0`, not `(int) (0.5f * 100)` = |
| `50`. |
| |
| To avoid this common source of error, add explicit parentheses to make the |
| precedence explicit. For example, instead of this: |
| |
| ```java |
| long SIZE_IN_GB = (long) 1.5 * 1024 * 1024 * 1024; // this is 1GB, not 1.5GB! |
| |
| // this is 0, not a long in the range [0, 1000000000] |
| long rand = (long) new Random().nextDouble() * 1000000000 |
| ``` |
| |
| Prefer: |
| |
| ```java |
| long SIZE_IN_GB = (long) (1.5 * 1024 * 1024 * 1024); |
| |
| long rand = (long) (new Random().nextDouble() * 1000000000); |
| ``` |
