float_sum.java

import java.util.*;

public class AddFloats{
public static void main(String[] args){

     System.out.println("Please enter a positive floating point decimal to continue, or a negative number to halt");
     Scanner standardIn = new Scanner(System.in);
     float sum = 0.0;
     float next_number = standardIn.nextFloat();
     
     float average = 0.0;
     int numberOfEntries = 0;
     
     while(standardIn.hasNextFloat()){
            
        if(next_number >=0 ){
            numberOfEntries++;
            sum += next_number;
        }else{ break;}
      System.out.println("Please enter a positive floating point decimal to continue, or a negative number to halt");
     }
       System.out.println("The average of the values you entered is: " + (float)Math.round((sum/numberOfEntries) * 10) / 10)
}
}