Can anyone kindly confirm that my solution is correct? I tested it manually and it appears to be fine.

Question about the task

Resolved

//write your code here
        Scanner sc = new Scanner(System.in);

        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();


        if(a >= (b + c) || b >= (a + c) || c >= (a + b)){
            System.out.println(TRIANGLE_EXISTS);
        }
        else {
            System.out.println(TRIANGLE_DOES_NOT_EXIST);
        }

Let's write a program that will calculate the possibility of the existence of a triangle based on the lengths of sides.
To do this, you need to:

Enter three numbers from the keyboard — the lengths of the sides of the assumed triangle.
Use the lengths of the sides to determine whether a triangle is possible.

Depending on the result, display "It's a triangle" or "It's not a triangle".

To make this determination, you need to compare each side with the sum of the other two sides.
That is, you will need to perform three comparisons:

If each comparison indicates that the side is less than the sum of the other two sides, then a triangle with these sides does exist.
If even one comparison indicates that the side is greater than or equal to the sum of the other two sides, then a triangle with these sides does not exist.

Requirements:

The program should read three number from the keyboard.
The program should display text on the screen in accordance with the task conditions.
If a triangle with the entered sides is possible, then you need to display "It's a triangle".
If a triangle with the entered sides is not possible, then you need to display "It's not a triangle".

package en.codegym.task.pro.task03.task0306; import java.util.Scanner; /* Triangle */ public class Solution { private static final String TRIANGLE_EXISTS = "It's a triangle"; private static final String TRIANGLE_DOES_NOT_EXIST = "It's not a triangle"; public static void main(String[] args) { //write your code here Scanner sc = new Scanner(System.in); int a = sc.nextInt(); int b = sc.nextInt(); int c = sc.nextInt(); if(a >= (b + c) || b >= (a + c) || c >= (a + b)){ System.out.println(TRIANGLE_EXISTS); } else { System.out.println(TRIANGLE_DOES_NOT_EXIST); } } }

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Martin Belusky

Level 50 , Slovakia

Expert

5 April 2023, 12:41

You have it wrong. It should be the opposite: if (a < (b + c) || b < (a + c) || c < (a + b)){

Thomas

Level 41 , Bayreuth, Germany

2 April 2023, 05:45

____________________ a _ b _ c a >= b + c following your logic you can create a triangle from these sides