user3235117 - 1 year ago 87

Java Question

I need

`int 32`

`00100000`

`int 127`

`0111 1111`

The variant

`Integer.toBinaryString`

If I build the for loop this way:

`for (int i= 32; i <= 127; i + +) {`

System.out.println (i);

System.out.println (Integer.toBinaryString (i));

}

And from binary numbers I need the number of leading zeros (count leading zeros (clz) or number of leading zeros (nlz)) I really meant the exact number of 0, such ex: at 00100000 -> 2 and at 0111 1111 - > 1

Answer

Count the number of leading zeros as follows:

```
int lz = 8;
while (i)
{
lz--;
i >>>= 1;
}
```

Of course, this supposes the number doesn't exceed 255, otherwise, you would get negative results.

Source (Stackoverflow)