Answers for "average num in java"

Java program to find average of n numbers

// Java program to find average of n numbers
import java.util.Scanner;
public class FindAverageOfNNumbers
{
   public static void main(String[] args) 
   {
      int num, count = 1;   
      float a, average, total = 0;   
      Scanner sc = new Scanner(System.in);     
      System.out.println("Please enter n numbers: ");  
      num = sc.nextInt();  
      while(count <= num)
      {   
         System.out.println(count + " number: ");  
         a = sc.nextInt();
         total += a;
         ++count;   
      }
      average = total / num;   
      System.out.println("Average is: " + average);
      sc.close();
   }
}

calculate average java

Just some minor modification to your code will do (with some var renaming for clarity) :

double sum = 0; //average will have decimal point

for(int i=0; i < args.length; i++){
   //parse string to double, note that this might fail if you encounter a non-numeric string
   //Note that we could also do Integer.valueOf( args[i] ) but this is more flexible
   sum += Double.valueOf( args[i] ); 
}

double average = sum/args.length;

System.out.println(average );