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

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
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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

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Web Snippet Preview
Assume I have one
20
in
file, so
my
I print one star after
20.
Transcribed Image Text: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
Transcribed Image Text: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
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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 {
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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
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13 }
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22 public static int[] readData(Scanner inFile) { //method 2
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int numVals = inFile.nextInt ();
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int[] data = new int[numVals];
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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)
Transcribed Image Text: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)
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