Write an application to save, retrieve and modify the student survey data. This

Question

Write an application to save, retrieve and modify the student survey data. This application is divided into 2 module Student module and Instructor module. (In Java, eclipse)

Student Module:

• Students will be ask to enter survey data (StudentId, LastName, FirstName, Street, City, State)

• Ask Students to confirm if the data entered is correct. (Y/N)

• Survey data should be saved in a text file in alphabetical order by LastName (use either ArraySortedList or RefSortedList). The directory to save your file is User/SurveyDir/.

Instructor Module:

o Instructor should be able to retrieve the survey entry by StudentId and/or LastName from the file. o Instructor should be able to remove an entry using StudentId or LastName from the file.

Explanation / Answer

I have written a small java code for getting the student information from the user and then storing the same information in a text file.

Working java code for the same will be:

import java.io.*;
import java.util.Scanner;

class appStudent {
public String name[][] = new String[10][10];
void enter_details(int n)
{
Scanner get = new Scanner(System.in);
int limit=n;
System.out.println("Enter "+limit+" Student Details ");

for(int i=0;i<limit;i++)
{
System.out.println("Enter Student #"+(i+1)+" Name, Roll Number & Marks:");
for(int j=0;j<3;j++)
{
name[i][j] = get.nextLine();
}
}

myprint(limit);
}

void myprint(int limit)
{
System.out.println("Student Name"+" "+"Roll"+" "+"Marks");
for(int i=0;i<limit;i++)
{
for(int j=0;j<3;j++)
{
System.out.print(name[i][j]+" ");
}
System.out.println();
}
}

public static void main(String args[]) throws IOException
{   
Scanner in = new Scanner(System.in);
System.out.print("Enter Number of Students:");
int n = in.nextInt();
appStudent std = new appStudent();
std.enter_details(n);


PrintStream output = new PrintStream(new File("output.txt"));
output.println("Student Name"+" "+"Roll"+" "+"Marks");
output.println("======================================");
for(int i=0;i<n;i++)
{
for(int j=0;j<3;j++)
{
output.print(std.name[i][j]+" ");
}
output.println();
output.println("======================================");
}
output.close();

}
}

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