Don't know how get result of variable m (-1) :/

package com.codegym.task.task10.task1007;

/*
Task No. 7 about integer type conversions

*/

public class Solution {
    public static void main(String[] args) {
        long l = 1234_564_890L;
        int x = 0b1000_1100_1010;

         double m = (byte) 110_987_654_6299.123_34;
        //System.out.println(m) --> -1 ?!?!?!?!?!?!??!?!?;

        float f = l++ + 10 + ++x - (float) m;
        l = (long) f / 1000;
        System.out.println(l);
    }
}