Image one is the example output of text-based histogram .Image 2 is my file. You can creat a new file too(up to u) as long as the output shows the times of appearances of the numbers. (Like the example showed in image 1, if number 20 appeared 1 times, print 1 star after it.I want to write:A method to print a text-based histogramtakes one parameter, an array of integersno return value 011|2131415161718|9|10|11|12|13 |14|15|16117118|19120 *211Web Snippet PreviewAssume I have one20infile, somyI print one star after20. world_cup_goals_20...seattle_average_te...1 29//totol value in this file.25354 555657 3859510 511 312 513 514 515 416 517 218 519 520 521 522 423 524 525 526 527 528 429 530 5ings_april_2019.txt 1:3 Spaces: 4 (Auto)disneyland_ratings_...FunWithHistograms...All changes saved▶ Run✓ Mark

Define printHistogram() function to print the text based histogram. In the main() function, open the file in read mode. Iterate through each line of file and append into the list. Finally, invoke the printHistogram() function.# printHistogram() function to print the text based histogramdef printHistogram(array): hist = {} # iterate through the array for i in array: # count the number of elements hist[i] = hist.get(i,0)+1 # iterate for all the array elements for i in range(max(array)+1): # print the histogram if(i in hist.keys()): print(f'{i}| {"*"*hist[i]}') else: print(f'{i}|') # main() functiondef main(): # open the input file in read mode f = open('input.txt','r') array = [] # iterate through each line of file for line in f: # append numbers into list array.append(int(line.strip())) # invoke printHistogram() printHistogram(array) main()input.txt

Answered: Image one is the example output of…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Related questions

Question

Image one is the example output of text-based histogram .

Image 2 is my file. You can creat a new file too(up to u) as long as the output shows the times of appearances of the numbers. (Like the example showed in image 1, if number 20 appeared 1 times, print 1 star after it.

I want to write:

A method to print a text-based histogram

takes one parameter, an array of integers
no return value

01
1|
21
31
41
51
61
71
8|
9|
10|
11|
12|
13 |
14|
15|
161
171
18|
191
20 *
211
Web Snippet Preview
Assume I have one
20
in
file, so
my
I print one star after
20.

world_cup_goals_20...
seattle_average_te...
1 29//totol value in this file.
25
35
4 5
55
65
7 3
85
95
10 5
11 3
12 5
13 5
14 5
15 4
16 5
17 2
18 5
19 5
20 5
21 5
22 4
23 5
24 5
25 5
26 5
27 5
28 4
29 5
30 5
ings_april_2019.txt 1:3 Spaces: 4 (Auto)
disneyland_ratings_...
FunWithHistograms...
All changes saved
▶ Run
✓ Mark

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 5 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Follow-up Questions

Read through expert solutions to related follow-up questions below.

Follow-up Question

Thank you but I think some methods u use I haven't learned yet, this is my program(image 1). Base on my program, can u rewrite your code in a easier way?

1 import java.util.*;
2 import java.io.*;
3 public class FunWithHistograms {
4
5
6
7
8
public static void main(String[] args) throws FileNotFoundException {
printIntro();//method 1
Scanner console = new Scanner (System.in);
System.out.print("input file name? ");
String fileName = console.nextLine();
Scanner inFile = new Scanner (new File(fileName));
int[] data = readData(inFile);//method 2
9
10
11
12
13 }
14
15
16
17
18
19
20
21
22 public static int[] readData(Scanner inFile) { //method 2
23
int numVals = inFile.nextInt ();
24
int[] data = new int[numVals];
25
26
27
28
29
30
31
32
33
34 }
public static void printIntro() {
System.out.println("The program will analyze data from a dataset of");
System.out.println("non-negative
integer values. It will produce a");
System.out.println("histogram of the data and output some statistics.");
System.out.println();
for (int i = 0; i < numVals; i++) {
data[i] = inFile.nextInt ();
}
return data;
//write method 3 plz.
/home/FunWithHistograms.java 32:26 Spaces: 4 (Auto)

Solution

by Bartleby Expert

SEE SOLUTION

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions