This program calculates the total number of points a soccer team has earned over a series of games. The user enters a series of point values, then -1 when finished.

SoccerPoints.java

import java.util.Scanner;    // Needed for the Scanner class

/**
   This program calculates the total number of points a
   soccer team has earned over a series of games. The user
   enters a series of point values, then -1 when finished.
*/

public class SoccerPoints
{
   public static void main(String[] args)
   {
      int points;          // Game points
      int totalPoints = 0; // Accumulator initialized to 0

      // Create a Scanner object for keyboard input.
      Scanner keyboard = new Scanner(System.in);
      
      // Display general instructions.
      System.out.println("Enter the number of points your team");
      System.out.println("has earned for each game this season.");
      System.out.println("Enter -1 when finished.");
      System.out.println();

      // Get the first number of points.
      System.out.print("Enter game points or -1 to end: ");
      points = keyboard.nextInt();     

      // Accumulate the points until -1 is entered.
      while (points != -1)
      {
         // Add points to totalPoints.
         totalPoints += points;

         // Get the next number of points.
         System.out.print("Enter game points or -1 to end: ");
         points = keyboard.nextInt();     
      }

      // Display the total number of points.
      System.out.println("The total points are " +
                         totalPoints);
   }
}