Question

Write a java program that uses a loop to input, from the user not using gui, a collection of values that are the number of steps taken each day for a sequence of days and stores those amounts in an array. the array length should be 31, The user is not required to enter 31 values.

the program determines and displays the largest number of steps for a single day, the smallest number of steps for a single day and the total number of steps taken for the data entered, all including commas in the display.

the program computes and display the average number of steps taken per day for the data entered, with commas and one digit after the decimal.

the program also displays each data value in the array and indicates if the value is "above average", "below average", or "average" the source code should have meaningful identifiers, and clear prompts to the user. there must be no break or continue statements in the program . static methods are not required.

Answer 1

/*Java program that prompts user to enter the number of steps from keyboard for 31 days. The program read user data until the user enters -99 to stop reading input user. Then finds the largest ,smallest and average daily steps . The program also prints the daily steps array with a string that indicates below average, above average and average*/
//DailyWalk.java
import java.util.Scanner;
public class DailyWalk
{
   public static void main(String[] args)
   {
       final int NUM_DAYS=31;
       //create an array of 31 days
       int[] dailySteps=new int[NUM_DAYS];
       int smallest=0;
       int largest=0;
       float averageSteps=0;
       Scanner keyboard=new Scanner(System.in);

       int SENTINAL=-99;
       int steps;
       int count=0;
       int totalSteps=0;

       System.out.printf("Enter number of steps for day [%d] or enter -99 to stop: ",count+1);
       steps=Integer.parseInt(keyboard.nextLine());

       //set steps to smallest and largest variables
       smallest=steps;
       largest=steps;
      
       /*read data from user till user enters -99 to stop reading*/
       while(count<NUM_DAYS && steps!=SENTINAL)
       {
           dailySteps[count]=steps;      
           totalSteps+=steps;
           count++;          
           System.out.printf("Enter number of steps for day [%d] or enter -99 to stop: ",count+1);
           steps=Integer.parseInt(keyboard.nextLine());      
           if(steps!=SENTINAL)
           {
               if(steps>largest)
                   largest=steps;

               if(steps<smallest)
                   smallest=steps;
           }
       }
       //calculate the average steps per day
       averageSteps=totalSteps/count;

       //print largest ,smallest,total steps and average steps
       System.out.print("Largest number of steps : "+largest);
       System.out.print(",Smallest number of steps : "+smallest);
       System.out.print(",Total number of steps : "+totalSteps);
       System.out.printf(",Average number of steps per day : %.2f",averageSteps);

       System.out.println();
       //print the steps along with below,above and average value
       for (int i = 0; i < count; i++)
       {
           //checking if value is above average value
           if(dailySteps[i]>averageSteps)
               System.out.printf("Day [%d ] : %d above average\n",i+1,dailySteps[i]);
           //checking if value is above average value
           else if(dailySteps[i]<averageSteps)
               System.out.printf("Day [%d ] : %d below average\n",i+1,dailySteps[i]);
           else
               System.out.printf("Day [%d ] : %d average\n",i+1,dailySteps[i]);
       } //end of for loop
   } //end of the main method
} //end of the class

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Sample Output: