### Question

Problem: Get maximum binary Gap.

For example, 9’s binary form is 1001, the gap is 2.

### Solution

This question is a good practise of binary operations.

### Code

**writen by me**

```
private int solution(int num) {
int max = 0;
int boundary = -1;
for (int i = 0; i < 32; i++) {
int t = num & 1;
num = num >> 1;
if (t == 1) {
if (boundary == -1) {
boundary = i;
} else {
max = Math.max(max, i - boundary - 1);
boundary = i;
}
}
}
return max;
}
```