not getting what to do

Question about the task

Minimum of four numbers

Java Syntax, Level 2, Lesson 8

Under discussion

tried both possible methods results are correct but still 3 and 5 condition not met please help

Write a function that computes the minimum of four numbers.
The function min(a, b, c, d) should use (call) the function min(a, b)

Hint:
You need to write the body of the two existing min functions.

Requirements:

The program should display text on the screen.
The min methods should not display text on the screen.
The main method should call min(a, b) and min(a, b, c, d).
The main method should display the result of the min methods. Each time, on a new line.
The min(a, b) method must return the minimum of the numbers a and b.
The min(a, b, c, d) method must use the min(a, b) method.
The min(a, b, c, d) method must return the minimum of the numbers a, b, c, and d.

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) { // int min; // if (a<=b && a<=c && a<=d); // min = a; // if ( b<=a && b <= c && b<=d); // min = b; // if (c<=a && c<=b && c<= d); // min = c; // if (d<=a && d<=b && d<=c); //return min; return min(min(min(a,b),c),d); } public static int min(int a, int b) { //write your code here int min; if ( a<b); min= a; if (a>b); min = b; return min; } 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)); } }

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Attila

Level 25

22 March 2020, 22:09

you dont need semicolon after the if Statements. you have it like this:

if ( a<b);  //this is closed command, it will give you a result of true/false
min= a;      //this is another command where you make min equal to a,
                  //regardless what happened in last line.

It should look like this:

if (a < b)
  min = a;

Or if you dont want to make mistakes like this, or you have more than 1 commands after the if statement:

if (a < b)
{
  min = a;
}