How to use Counter Controlled While Loop

Submitted by GeePee on Monday, May 18, 2015 - 21:54.
The following Java program uses Counter Controlled While Loops. Suppose you know exactly how many times certain statements need to be executed. In such cases, while loops assumes the form of a counter-controlled while loops. Suppose that a set of statements need to be executed N times. You can set up a counter to track how many items have been read. . I will be using the JCreator IDE in developing the program. To start in this tutorial, first open the JCreator IDE, click new and paste the following code:
  1. import java.util.*;
  2.  
  3. public class CounterControlled
  4. {
  5.         static Scanner console = new Scanner(System.in);
  6.  
  7.         public static void main (String[] args)
  8.         {
  9.  
  10.         int limit;     
  11.         int number;
  12.         int sum;
  13.         int counter;   
  14.  
  15.         System.out.println("Enter the data for processing:");          
  16.  
  17.         limit = console.nextInt();                             
  18.         sum = 0;                                                       
  19.         counter = 0;                                           
  20.  
  21.         while (counter < limit)                                        
  22.         {
  23.        
  24.         number = console.nextInt();                                    
  25.         sum = sum + number;                                            
  26.         counter++;                                                     
  27.  
  28.         }
  29.  
  30.         System.out.println(" The sum of the number is = "  + sum);
  31.                                        
  32.  
  33.         if (counter != 0)                                              
  34.  
  35.                 System.out.println(" the average is = " +       (sum / counter));
  36.  
  37.         else
  38.                 System.out.println("no input data");
  39. }
  40. }
Sample run: Enter data for processing: 12 8 9 2 3 90 38 56 8 23 89 7 2 8 3 8 The sum of the 12 numbers = 335 The average = 27 The preceding program works as follows: the statement  System.out.println("Enter the data for processing:"); prompts the user to input the data for processing. The statement  limit = console.nextInt();reads the next input line and stores it in the variable limit. The value of limit indicates the number of items to be read. The statements  sum = 0;and  counter = 0; initialize the variables sum and counter to 0. The while statement  while (counter < limit) checks the value of counter to determine how many have been read. If the counter is less than limit, the while loop proceeds for the next iteration. The statement  number = console.nextInt();stores the next number in the variable number. The statement  sum = sum + number; updates the value of sum by adding the value of number to the previous value. The statement  counter++;increments the value of counter by 1. The statement System.out.println(" The sum of the number is = "  + sum); outputs the sum of the numbers. The statement [geshifilter-java if (counter != 0) System.out.println(" the average is = " + (sum / counter)); else System.out.println("no input data");
Tags
How to use Counter Controlled While Loop
java

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