Text file gradetxt contains 10 students grade Each line with

Text file “grade.txt” contains 10 students grade. Each line with one grade.

Read all grades from the file “grade.txt” and write them as integers into a binary file (binaryGrade.dat).

Read grades from the binary file “binaryGrade.dat” and compute and display the average grade. Using Standard java code, write this program.

Solution

Hi, Please find my implementation.

Please let me know in case of any issue.

import java.io.BufferedReader;

import java.io.BufferedWriter;

import java.io.FileReader;

import java.io.FileWriter;

import java.io.IOException;

public class GradeProgram {

  

   public static void main(String[] args) throws IOException {

      

       // opening grade.txt

       FileReader fr = new FileReader(\"grade.txt\");

       BufferedReader br = new BufferedReader(fr);

      

       // opening binaryGrade.dat

       FileWriter fw = new FileWriter(\"binaryGrade.dat\");

       BufferedWriter bw = new BufferedWriter(fw);

      

       String line;

      

       // reading from grade.txt and writing to binaryGrade.dat

       int i=1;

       while(i <= 10){

           line = br.readLine();

           bw.write(line);

           bw.newLine();

           i++;

       }

      

       bw.close();

      

       // now opening binaryGrade.dat file

       fr = new FileReader(\"binaryGrade.dat\");

       br = new BufferedReader(fr);

      

      

       int sum = 0;

       i = 1;

       // reading from binaryGrade.dat and adding grade value in sum

       while(i <= 10){

           line = br.readLine();

           sum += Integer.parseInt(line.trim());

           i++;

       }

      

       br.close();

       fr.close();

      

       System.out.println(\"Average: Grade: \"+(sum/10.0));

      

   }

}

/* grade.txt

54

23

76

87

90

12

65

67

56

89

*/

/*

Sample run:

Average: Grade: 61.9

*/