如何打印三角形的数量然后打印它的最小周长？

Question

    import java.util.Scanner;
     public class project {
     public static void main(String[]args){
    Scanner input = new Scanner(System.in);   

// to scan the values

    int N ;   

// numbers of lines

    double side1,side2,side3;  `




     double minimum = 1000; 

// to keep the minimum value

         double sum = 0;  

// to keep calculated values

          int which_one = 0 ;

    System.out.println("How many triangles do you have?");
    N = input.nextInt();         

// how many lines

     System.out.println("Please, insert lengths of the " 
            + "sides of these triangles (3 real numbers per line):");

            for (int i = 0; i < N ; i++){  

// loop for taking the value from the user


     side1 = input.nextDouble();           // input of side1
     side2 = input.nextDouble();           // input of side2
     side3 = input.nextDouble();           // input of side3
     sum = side1 + side2 + side3;  


     if (sum < minimum ) minimum = sum;
       which_one =  N+1;

            }

         System.out.printf("Triangle no."+ which_one 
              + " has the minimum perimeter which is %.1f%n "+minimum);        
}
}

Answer 1

您的错误就在这一行。我已经纠正了它应该是什么：

System.out.printf("Triangle no." + which_one + 
    " has the minimum perimeter which is %.1f\n " , minimum);

我用＆＃34;＆＃34;替换+之前的minimum。以便minimum作为格式说明符%.1f的值提供。