QUESTION: Design and implement an application that creates a histogram that allo

Question

QUESTION: Design and implement an application that creates a histogram that allows you to visually inspect the frequency distribution of a set of values. The program should read in an arbitrary number of integers that are in the range 1 to 100 inclusive; then produce a chart similar to the one below that indicates how many input values fell in the range 1 to 10, 11 to 20, and so on. Print one asterisk for each value entered.

1 - 10 | *****

11 - 20 | **

21 - 30 | *******************

31 - 40 |

41 - 50 | ***

51 - 60 | ********

61 - 70 | **

71 - 80 | *****

81 - 90 | *******

91 - 100 | *********

_______________________________________________

//I have this so far. I need to fix DataInputStream input = new DataInputStream(System.in);

//so it can read my int value input please help! Please Explain what in the heck is going on....I'm so frustrated.

public class mybrainhurts
{
     public static void main(java.lang.String[] args) {

      DataInputStream input = new DataInputStream(System.in);
      final int MAX = 10;      
      final int MIN = 1;      
      final int RANGE    = 10;     

      int[] list = new int[MAX];
  
    

      // Initialize to 0
      for (int i=0; i<list.length; i++) {
         list[i] = 0;
      }

    
      System.out.println ("ENTER ANY INTEGERS FROM 1 to 100: ");
      System.out.println ("TO QUITE AND SEE HISTOGRAM PRESS 999");
    

    
      System.out.print ("PLEASE ENTER INTEGER: ");
      int value = Integer.parseInt (stdin.readLine());

      while (value >= MIN && value <= (MAX*RANGE)) {

         // Divide by range to determine which range to increment
         list[(value-1)/RANGE] = list[(value-1)/RANGE] + 1;

         // Enter next integer value
         System.out.print ("ENTER INTEGER: ");
         value = Integer.parseInt (input.readLine());
      }

      // Print the histogram
      System.out.println ("HISTOGRAM= ");
      for (int i=0; i<list.length; i++) {
         // Print histogram labels
         System.out.print ("   " + (i*RANGE+1) + " - " + (i+1)*RANGE + " | ");

         // Print as many asterisks as the value in list[i]
         for (int j=0 ; j<list[i] ; j++) {
            System.out.print ("*");
         }
         System.out.println ();   // starts new histogram line
      }
   }
}

Explanation / Answer

import java.util.Scanner;

public class mybrainhurts
{
public static void main(java.lang.String[] args) {

Scanner input = new Scanner(System.in);
final int MAX = 10;
final int MIN = 1;
final int RANGE = 10;   

int[] list = new int[MAX];
  
  

// Initialize to 0
for (int i=0; i<list.length; i++) {
list[i] = 0;
}

  
System.out.println ("ENTER ANY INTEGERS FROM 1 to 100: ");
System.out.println ("TO QUIT AND SEE HISTOGRAM PRESS 999");
  

  
System.out.print ("PLEASE ENTER INTEGER: ");
int value = input.nextInt();

while (value >= MIN && value <= (MAX*RANGE)) {

// Divide by range to determine which range to increment
list[(value-1)/RANGE] = list[(value-1)/RANGE] + 1;

// Enter next integer value
System.out.print ("ENTER INTEGER: ");
value = input.nextInt();
}

// Print the histogram
System.out.println ("HISTOGRAM= ");
for (int i=0; i<list.length; i++) {
// Print histogram labels
System.out.print (" " + (i*RANGE+1) + " - " + (i+1)*RANGE + " | ");

// Print as many asterisks as the value in list[i]
for (int j=0 ; j<list[i] ; j++) {
System.out.print ("*");
}
System.out.println (); // starts new histogram line
}
}
}

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