Java Program to Read Text Parameters Assignment Solution

Instructions

Objective

Write a java assignment program to read text parameters.

Requirements and Specifications

Description: Using the current code file (attached) fix any errors or add code that is needed to ensure these instructions are met: 1. You have been asked to create a basic histogram in the following format: ^ | |***** (5) |** (2) |*************** (15) |**** (4) |***** (5) |****** (6) |************************* (25) |******** (8) |***** (5) |* (1) +----|----|----|--> The general logic (not all-inclusive) is as follows: 1. Read a text parameter/data file of 10 integers, one per line, into an array. 2. Into a text file write the following: 3. Write the upward-pointing carat “^” and one empty pipe “|” each on individual lines. 4. For each element in the array, do the following: 5. Write a pipe “|”. 6. Write the asterisk “*” as many times as specified by each integer value to create a line of asterisks using a loop. 7. Write the integer value in parentheses to the right of each asterisk bar. 8. Write the final line as one string “+----|----|----|-->” Other: ○ In addition to the file output, include console output using System.out.print for example. Doing so will assist you with debugging. Leave the console output in place in your submission. ○ You are free to vary the number of asterisks per line, within reason. ○ You will need both read and write streams for the parameter/data file and output file, respectively. ○ You will also need to open the files as well as close the files. ○ You will need to specify path and filename information for both files. ○ This Activity can be completed using one class if you prefer. ○ Include appropriate package import declarations as needed. ○ Observe proper commenting/documentation techniques. § Include clearly written comments/documentation to explain the purpose of major blocks of code. § As needed/appropriate, include additional levels of comments/documentation detail to help you understand your code and logic as well as to help your reader understand the same. ○ Observe proper naming conventions for classes, attributes, methods, etc.

Source Code

/* * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Main.java to edit this template */ package mod4; /** * * @author */ import java.io.File; import java.io.FileNotFoundException; import java.io.PrintWriter; import java.util.Scanner; public class Mod4 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); //accepts input of the prim data type, with input stream of OS //prompt user for file name and load file System.out.println("Enter the file name for input: "); ///prompt user for input file name String filename = sc.nextLine(); File doc = new File(filename); //file that has the text content to be read //Scanner scanner; int tango = 0; int [] numbers = new int[100]; int counter = 0; String readChar = ""; char [] iNumbers = new char[100]; try { //write to file PrintWriter outputFile = new PrintWriter("OUTPUTMod4Histogram.txt"); //read file using Scanner Scanner scanner = new Scanner(doc); //the file called for input is to be read while(readChar != "+"){ while(readChar != "^" || readChar != "|" || readChar != "("){ tango = tango+1; } numbers[counter] = tango; counter++; //numbers is initiated for 'count' and is also line (what is read) //file loaded succesfully the file called from input System.out.println("File loaded successfully"); //output the starting lines of carat and pipe System.out.print("^\n|\n"); outputFile.print("^\n|\n"); //start a for loop for number of lines to output a pipe for

for(int i=0; i System.out.print("|"); outputFile.print("|"); //start a nested for loop for outputting the number of asterisks per line

for(int j=0; j System.out.print("*"); outputFile.print("*"); } //print the loop results to screen for output System.out.print( "(" + numbers[i] + ")\n" ); //send the loop results to the output file outputFile.print( "(" + numbers[i] + ")\n" ); } } //output the final lines to screen and file System.out.println("+----|----|----|-->"); outputFile.println("+----|----|----|-->"); //output the closure steps for the file export and try close System.out.println("Output exported to OUTPUTMod4Histogram.txt"); outputFile.close(); } //error handling if file cannot be found catch (FileNotFoundException e){ System.out.println("file not found"); } sc.close(); } }