COCK 2

package lab1;

import static java.lang.Math.*;
import java.util.Scanner;

public class Switch_2 {

    public static void main(String[] args) {
        double y = 0;
        double a;

        Scanner input = new Scanner(System.in);
        System.out.print("а = ");
        a = input.nextDouble();
        input.close();

        switch(
                (a == -124 || (a >= -25 && a < 40) || (a >= 50 && a < 65)) ? 1 :
                (a == 40 || (a >= 65 && a <= 75) || (a > 87 && a <= 100)) ? 2 :
                (a == 87 || (a <= 175 && a <= 810) || (a > 1999 && a < 2888)) ? 3 : 0
                        ) {
            case 1:
                y = pow(a-1, 1.0/3);
                break;
            case 2:
                y = pow(2, a+1);
                break;
            case 3:
                y = -cos(a);
                break;
            default:
                y = a+2;
        }
        System.out.println("Результат: " + y);

    }

}