Day 2, Java - rextester

Day 2

//'main' method must be in a class 'Rextester'.
//openjdk version '11.0.5'

import java.util.*;
import java.lang.*;

class Rextester
{  
    public static void main(String args[])
    {
        double max;
        
        Scanner sc = new Scanner(System.in);
        double a = sc.nextDouble();
        double b = sc.nextDouble();
        double c = sc.nextDouble();
        
        if (a <= 0 || b <= 0 || c <= 0 || a + b <= c || a + c <= b || c + b <= a) 
            System.out.println("KHONG TAO THANH TAM GIAC ");     
        else if (a == b && b == c) System.out.println("DAY LA TAM GIAC DEU");
             else if (a == b || a == c || b == c) System.out.println("DAY LA TAM GIAC CAN");
                  else 
                    {
                        if (a > b && a > c) 
                        {
                            max = a;
                            if (max*max - b*b - c*c == 0) System.out.println("DAY LA TAM GIAC VUONG");
                            else System.out.println("DAY LA TAM GIAC");
                        }
                        else if (b > c) 
                        {
                            max = b;
                            if (max*max - a*a - c*c == 0) System.out.println("DAY LA TAM GIAC VUONG");
                            else System.out.println("DAY LA TAM GIAC");
                        }
                             else 
                        {
                            max = c;
                            if (max*max - b*b - a*a == 0) System.out.println("DAY LA TAM GIAC VUONG");
                            else System.out.println("DAY LA TAM GIAC");
                        }
       
                    }
        
    }
}


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