I cannot get the sum to calculate. I'm not even sure my logic is correct. : I believe I may need to use for instead of while, I am unsure on how fix this. When I try to research this all I can find is in relation to "sum of arrays" My sum keeps coming out to equal 10 although I have declared the values. Can someone help? Thanks 

public class OnlinePurchases {

   
    public static void main(String[] args) {
        // TODO code application logic here
        
         String sName = " ";
         int  nChoices = 0;
         int nChoice1  = 249;
         int nChoice2 = 39;
         int nChoice3 = 1149;
         int nChoice4 = 349;
         int nChoice5 = 49;
         int nChoice6 = 119;
         int nChoice7 = 899;
         int nChoice8 = 299;
         int nChoice9 = 399;
         int nSum = 0;
         final int SENTINEL = 10; 
         int nCount = 0;
         
        
         Scanner input  = new Scanner(System.in) ;
        
         System.out.print("Please enter your name : ");
                sName = input.nextLine();
                
         System.out.println("BEST PURCHASE PRODUCTS \n" );
                                     System.out.println("1.   Smartphone $249");  
                                     System.out.println("2.   Smartphone case $39");   
                                     System.out.println("3.   PC Laptop $1149 ");
                                     System.out.println("4.   Tablet $349");
                                     System.out.println("5.   Tablet case $49");
                                     System.out.println("6.   eReader  $119"); 
                                     System.out.println("7.   PC Desktop $899"); 
                                     System.out.println("8.   LED Monitor $299" );
                                     System.out.println("9.   Laser Printer $399" );
                                     System.out.println("10. Complete my order");
     
        System.out.println("");   
        
        System.out.print("Please select an item from the menu above : ");
                nChoices = input.nextInt();
          
      
        
        while(nChoices != SENTINEL) {
            
            System.out.print("Please select another item from the menu above : ");
            
            
            
           nCount++;
           
            nChoices = input.nextInt();
                
            if(nChoices == 1){
                                nChoices =  nChoice1 ;
                }
                else if(nChoices == 2){
                                    nChoices = nChoice2;
                }
                    else if(nChoices == 3){
                                    nChoices = nChoice3;
                }
                        else if(nChoices == 4){
                                    nChoices = nChoice4;
                }
                            else if(nChoices == 5){
                                    nChoices = nChoice5 ;
                }
                
                
                
                
                }
                    
               nSum = nSum + nChoices;
                System.out.println("Price of Items Ordered : " + nSum );
                System.out.println("Total Items Ordered : " + nCount  );
                
            
           
            
            }
            
 
        }
        