Could you explain me that, please?
package com.codegym.task.task02.task0217;
/*
Minimum of four numbers
*/
public class Solution {
public static int min(int a, int b, int c, int d) {
//write your code here
if (((a<=b) && (a<=c) && (a<=d)))
return a;
else if (((b<=a) && (b<=c) && (b<=d)))
return b;
else if (((c<=a) && (c<=b) && (c<=d)))
return c;
else
return d;
}
public static int min(int a, int b) {
//write your code here
if (a < b)
return a;
else
return b;
}
public static void main(String[] args) throws Exception {
System.out.println(min(-20, -10));
System.out.println(min(-20, -10, -30, -40));
System.out.println(min(-20, -10, -30, 40));
System.out.println(min(-40, -10, -30, 40));
}
}