// Sentinel is negative blood pressure. int thisBP; int total; int count; count = 1;       // Initialize total = 0; // Priming read thisBP = Integer.parseInt(dataFile.readLine()); while (thisBP > 0)   // Test expression {   total = total + thisBP;   count++;              // Update   thisBP = Integer.parseInt(dataFile.readLine()); } System.out.println(“The total = “  +  total);