THIS IS FINAL COURSE ASSIGNMENT, PLEASE FOLLOW ALL REQUIREMENTS. Hello, please h
ID: 3844401 • Letter: T
Question
THIS IS FINAL COURSE ASSIGNMENT, PLEASE FOLLOW ALL REQUIREMENTS.
Hello, please help write program in JAVA that reads students’ names followed by their test scores from "data.txt" file. The program should output "out.txt" file where each student’s name is followed by the test scores and the relevant grade, also find and print the highest test score and the name of the students having the highest test score.
Student data should be stored in an instance of class variable of type studentClass, which has four components: StudentFName, studentLName of type string, testScore of type int (testScore is between 0 and 100), and grade of type char. Suppose that the class has 20 students. Use an array of 20 elements of type studentClass.
SPECIFIC REQUIREMENTS
Program must contain the following methods:
1) A method to read the students’ data into the array
2) A method to assign the relevant grade to each student
3) A method to find the highest test score
4) A method to print the names of the students having the highest test score.
5) Your program must output each student’s name in the following form: last name followed by a comma, followed by a space, followed by the first name, the name must be left justified; you should output each student’s name followed by the test scores and the relevant grade. It should also find and print the highest test score and the name of the students having the highest test score as follow:
6) You MUST use the "Data.txt" file as input data file and "Out.txt" as a output result file.
Input "Data.txt" file must have information in the following manner:
Duckey Donald 85
Goof Goofy 89
Brave Balto 93
Snow Smitn 93
Alice Wonderful 89
Samina Akthar 85
Simba Green 95
Donald Egger 90
Brown Deer 86
Johny Jackson 95
Greg Gupta 75
Samuel Happy 80
Danny Arora 80
Sleepy June 70
Amy Cheng 83
Shelly Malik 95
Chelsea Tomek 95
Angela Clodfelter 95
Allison Nields 95
Lance Norman 88
Output result file "Out.txt" must have information in the following manner:
Student Name Test Score Grade
Donald, Duckey 85 B
Goofy, Goof 89 B
Balto, Brave 93 A
Smitn, Snow 93 A
Wonderful, Alice 89 B
Akthar, Samina 85 B
Green, Simba 95 A
Egger, Donald 90 A
Deer, Brown 86 B
Jackson, Johny 95 A
Gupta, Greg 75 C
Happy, Samuel 80 B
Arora, Danny 80 B
June, Sleepy 70 C
Cheng, Amy 83 B
Malik, Shelly 95 A
Tomek, Chelsea 95 A
Clodfelter, Angela 95 A
Nields, Allison 95 A
Norman, Lance 88 B
Highest Test Score: 95
Students having the highest test score:
Green, Simba
Jackson, Johny
Malik, Shelly
Tomek, Chelsea
Clodfelter, Angela
Nields, Allison
7) Other than declaring variables and opening the input and output files, the function main() should only be a collection of function calls.
8) Comment your code and use meaningful or mnemonic variable names
Student Name Test Score Grade Donald, Duckey 85 Goofy, Goof 89 Balto Brave 93 Smit n, Snow 93 wonderful, Alice 89 85 Akthar Samina. Green Simba 95 Egger, Donald 90 86 Brown Deer Jackson Johny 95 75 Gupta, Happy, Samuel 80 Arora Danny June sleepy 83 Malik, Shelly 95 Tomek Chelsea 95 Clodfelter Angela Nields, Allison 95 88 Norman, Lance Highest Test Score: 95 Students having the highest test score: Green Simba Jackson Johny Malik Shelly Tomek, Chelsea Clodfelter Angela Nields. AllisonExplanation / Answer
use the below code example for step by step reading file data, writing file output, and calculating grade.
// Read data from the file.
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
public class ReadFileExample1 {
private static final String FILENAME = "data.txt";
public static void main(String[] args) {
BufferedReader br = null;
FileReader fr = null;
try {
fr = new FileReader(FILENAME);
br = new BufferedReader(fr);
String sCurrentLine;
br = new BufferedReader(new FileReader(FILENAME));
while ((sCurrentLine = br.readLine()) != null) {
System.out.println(sCurrentLine);
// use sCurrentLine to calculate the grade based on the last data from the file (which is marks in numaric)
//this is to read the last word and word will be parsed into integer
Int marks = Integer.parseInt(sCurrentLine.substring(sCurrentLine.lastIndexOf(" ")+1).toString());
// allocate the grades based on marks(you can change the grade value)
if(marks>90){String grade="A0"}//assing similarly other grades is else condition.
// inside the read loop itself write the file with "out.txt"
//Writing into file use the below code.
File file = new File("out.txt");
try (FileOutputStream fop = new FileOutputStream(file)) {
// if file doesn't exists, then create it
if (!file.exists()) {
file.createNewFile();
}
// get the sCurrentLine in bytes
byte[] contentInBytes = sCurrentLine.getBytes();
fop.write(contentInBytes+" "+marks);
fop.flush();
fop.close();
System.out.println("Done");
} catch (IOException e) {
e.printStackTrace();
}
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (br != null)
br.close();
if (fr != null)
fr.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
}
}
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