Все сделал согласно условию, даже несколько раз проверил, но все четно
package com.javarush.task.pro.task12.task1205;
/*
Метод деления
*/
public class Solution {
public static void main(String[] args) {
divide(1, 0);
divide(-1, 0);
divide(0, 0);
divide(100, 20);
divide(200, 20);
}
public static void divide(double a, double b) {
if(
(a > 0 && b == 0) ||
(a == Double.POSITIVE_INFINITY && b >= 0 && b != Double.NEGATIVE_INFINITY) ||
(a == Double.POSITIVE_INFINITY && b < 0 && b != Double.NEGATIVE_INFINITY))
System.out.println(Double.POSITIVE_INFINITY);
else if(
(a < 0 && b == 0) ||
(a == Double.NEGATIVE_INFINITY && b >= 0 && b != Double.POSITIVE_INFINITY) ||
(a == Double.POSITIVE_INFINITY && b < 0 && b != Double.NEGATIVE_INFINITY))
System.out.println(Double.NEGATIVE_INFINITY);
else if(
(a == 0 && b == 0) ||
(a == Double.NaN || b == Double.NaN) ||
(a == Double.POSITIVE_INFINITY && b == Double.POSITIVE_INFINITY) ||
(a == Double.POSITIVE_INFINITY && b == Double.NEGATIVE_INFINITY) ||
(a == Double.NEGATIVE_INFINITY && b == Double.POSITIVE_INFINITY) ||
(a == Double.NEGATIVE_INFINITY && b == Double.NEGATIVE_INFINITY))
System.out.println(Double.NaN);
else System.out.println(a/b);
}
}
Как минимум здесь уже не совпадает