loop wuestion

[mehnihma]

My question is ; how to take a value from a loop and continue the loop and take the new value again, print it and add it to the old one?

thanks

      while (numCourses <= 3) // loop 1 times
      {
         System.out.print( "Enter grade (one character): " ); // prompt 
			
		numCourses +=  1;
			
          grade = input.next(); // read grade from user
			  
			  char c = grade.charAt(0);  // from string to Character 
			  
			  int points = 0;
			  
			 
			  
			// case switch
			  
			  switch (c) {
			  
			  
			  
			                                
                case 'A':              
                case 'a':
               points = 4;
                    break;
                case 'b':
                case 'B':
                    points = 3;
                    break;
                case 'c':
                case 'C':
                    points = 2;
                    break;
                case 'd':
                case 'D':
                   points = 1;
                    break;
               case 'f':
                case 'F':
                    points = 0;
				       break;
		
                    
            }// end switch
                          
     Scanner kurs1 = new Scanner(System.in);
     System.out.println("Enter credits: ");
     int kredit;
     kredit = kurs1.nextInt();
     int sumkredit = 0;
     sumkredit += kredit;
     int point1 = 0;
     points = point1;
     System.out.println("Sum Points: "+ point1);
     System.out.println("Sum Credits: "+sumkredit);
     
     
     
     
     
     


      } // end while

[Junky]

By using addition. Check out line 5 of your code.

[mehnihma]

I am not sure what I need to do?

Thanks

[Junky]

Neither am I since your first post is a bit vague. All I picked up on was that you want to add a value to a variable so you need to use addition. I really don't understand how this is difficult.

[mehnihma]

I need to add a value then use it and print it out
then when again when it loops again I need that second value and print it and add first value to it and so on 3 times

I need to enter two numbers, grade and credit and sum them

[Junky]

Then why do you need a loop? You just need to read those 2 values into 2 different variables and then have a third variable to hold the sum.

[CHLim]

Ok from reading your post and your code what I understand is this.
1) You want to input grade.
2) than get points based on grade
3) Input kredit
4) get a sum of kredit
5) get a sum of points
5) print out sumPoint and sumKredit


First of all i don't know if you want his or not your loops goes on for a total of 4 time because the condition is "<=" if you change it to "<" than it'll be 3 times.

Second if you want to get a sum of the kredits or points than you need to declare them outside of the while loop. Meaning it should either be in the method or declared
as a instance variable. With your current code every time the code goes into the next loop sumKredit and sumPoints are reset to "0" because those variables only last until
the end of the loop. New loop = new value.

Hope that helps