Question

please make a program by DrRacker

Suppose that we wish to add a new kind of expression known as a case of expression, which acts like a kind of switch-case or if-else-if conditional with multiple outcomes. An example of a case-of expression is: case f x of 0 -> 1; 1 -> 3; 2 -> 5; 3 -> 7; --> 0 The value of the above expression is 0 when the function's return value is none of 0, 1, 2, or 3.

Answer 1

import java.util.*;
public class Main
{
        public static void main(String[] args) {
            
            Scanner sc= new Scanner(System.in);
            int x= sc.nextInt();
            
            switch(x)
            {
               case 0: System.out.println("1");
                        break;
               case 1: System.out.println("3");
                        break;
               case 2: System.out.println("5");
                        break;
               case 3: System.out.println("5");
                        break;
               default: System.out.println("0");
                        break;
            }
        }
}