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/*
For Login : Two accounts namely Teacher 1 and Teacher 2
Passwords : To login -> 111 and 222, respectively!
*/
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
public class FInal_project {
public static void main(String[] args) {
//Initial details..
String[] userName = {"Teacher 1", "Teacher 2"};
String[] passwordKey = {"111", "222"};
//Declaration of variables ..
int desireOption = 0;
int choiceMarks = 0;
int choiceAttend = 0;
int choiceMarksView = 0;
int choiceAttendView = 0;
int tries = 0;
while (true) {
//login console...
Scanner input = new Scanner(System.in);
System.out.print("Enter Username: ");
String email = input.nextLine().trim();
System.out.print("Enter Password Key: ");
String password = input.next();
if ((email.equals(userName[0])) && (password.equals(passwordKey[0]))) {
String[] studentNames = {"Student 1 ", "Student 2", "Student 3", "Student 4 ", "Student 5 ", "Student 6 "};
do {
System.out.println("**PROGRAMMING FUNDAMENTAL TEACHER PORTAL**");
System.out.println("Welcome Teacher 1!");
System.out.println("Enter number to perform corresponding opeartion");
System.out.println("1: Insert marks");
System.out.println("2: Insert attendance");
System.out.println("3: View marks");
System.out.println("4: View attendance");
System.out.println("5: To log out");
desireOption = input.nextInt();
switch (desireOption) {
case 1:
do {
//To insert marks respectivley..
System.out.println("* Insert Marks **");
System.out.println("1: Enter Quiz 1 marks.");
System.out.println("2: Enter Quiz 2 marks.");
System.out.println("3: Enter Mid marks.");
System.out.println("4: Enter Terminal marks.");
System.out.println("5: Exit.");
System.out.println("Select respective choice: ");
choiceMarks = input.nextInt();
switch (choiceMarks) {
case 1:
//to write Quiz-1 marks..
String fileName = "pfQuiz_1.txt";
String type = "Quizzes:";
String marksTotal = " 20 ";
int marks[] = new int[studentNames.length];
initializerQuiz(marks);
fileWriterMarks(fileName, type, marksTotal, marks);
break;
case 2:
//to write Quiz-2 marks..
fileName = "pfQuiz_2.txt";
type = "Quizzes:";
marksTotal = " 20 ";
marks = new int[studentNames.length];
initializerQuiz(marks);
fileWriterMarks(fileName, type, marksTotal, marks);
break;
case 3:
//to write Mids marks..
fileName = "pfMid.txt";
type = "Mids:";
marksTotal = " 30 ";
marks = new int[studentNames.length];
initializerMid(marks);
fileWriterMarks(fileName, type, marksTotal, marks);
break;
case 4:
//to write terminal marks..
fileName = "pfTerminal.txt";
type = "Terminals:";
marksTotal = " 50 ";
marks = new int[studentNames.length];
initializerTerminal(marks);
fileWriterMarks(fileName, type, marksTotal, marks);
break;
case 5:
//Using the choice as a FLAG Variable to break loop..
choiceMarks = 5;
break;
default:
System.out.println("Invalid Input, please select a valid option");
}
} while (choiceMarks != 5);
break;
case 2:
do {
System.out.println("* Mark Attendance **");
System.out.println("1: Lab Attendance.");
System.out.println("2: Class Atendance.");
System.out.println("3: Exit.");
System.out.print("Your Choice: ");
choiceAttend = input.nextInt();
switch (choiceAttend) {
case 1:
//for lab attendance....
String fileName = "pflabAttendance.txt";
fileWriterAttendance(fileName);
break;
case 2:
//for class Attendance
fileName = "pfclassAttendance.txt";
fileWriterAttendance(fileName);
break;
case 3:
choiceAttend = 3;
break;
default:
//If user enters other than choices --> prompt this..
System.out.println("Invalid Input, please select a valid option");
}
} while (choiceAttend != 3);
break;
case 3:
do {
//To View marks respectivley..
System.out.println("* View Marks **");
System.out.println("1: View Quiz 1 marks.");
System.out.println("2: View Quiz 2 marks.");
System.out.println("3: View Mid marks.");
System.out.println("4: View Terminal marks.");
System.out.println("5: Exit.");
System.out.println("Select respective choice: ");
choiceMarksView = input.nextInt();
switch (choiceMarksView) {
case 1:
//to view Quiz-1 marks..
String n = "pfQuiz_1.txt";
reader(n);
break;
case 2:
//to view Quiz-2 marks..
n = "pfQuiz_2.txt";
reader(n);
break;
case 3:
//to view Mids marks..
n = "pfMid.txt";
reader(n);
break;
case 4:
//to view Terminals marks..
n = "pfTerminal.txt";
reader(n);
break;
case 5:
//flag variable to logout..
choiceMarksView = 5;
break;
default:
System.out.println("Invalid Input, please select a valid option");
}
} while (choiceMarksView != 5);
break;
case 4:
do {
System.out.println("* View Attendance **");
System.out.println("1: Lab Attendance.");
System.out.println("2: Class Atendance.");
System.out.println("3: Exit.");
System.out.print("Your Choice: ");
choiceAttendView = input.nextInt();
switch (choiceAttendView) {
case 1:
//to view Lab attendance..
String n = "pfLabAttendance.txt";
reader(n);
break;
case 2:
//to view class attendance..
n = "pfClassAttendance.txt";
reader(n);
break;
case 3:
//flag variable ..
choiceAttendView = 3;
break;
default:
//prompt for choices other than above case..
System.out.println("Invalid Input, please select a valid option");
}
} while (choiceAttendView != 3);
break;
case 5:
//Flag Variable for Logout to Login console..
desireOption = 5;
break;
default:
System.out.println("Invalid Input, please select a valid option");
}
} while (desireOption != 5);
System.out.println("Logging Out!");
break;
} else if ((email.equals(userName[1])) && (password.equals(passwordKey[1]))) {
String[] studentNames = {"Student 1 ", "Student 2", "Student 3", "Student 4 ", "Student 5 ", "Student 6 "};
do {
System.out.println("**FUNDAMENTALS OF GENETICS TEACHER PORTAL**");
System.out.println("Welcome Teacher 2!");
System.out.println("Enter number to perform corresponding opeartion");
System.out.println("1: Insert marks");
System.out.println("2: Insert attendance");
System.out.println("3: View marks");
System.out.println("4: View attendance");
System.out.println("5: To log out");
desireOption = input.nextInt();
switch (desireOption) {
case 1:
do {
//To insert marks respectivley..
System.out.println("* Insert Marks **");
System.out.println("1: Enter Quiz 1 marks.");
System.out.println("2: Enter Quiz 2 marks.");
System.out.println("3: Enter Mid marks.");
System.out.println("4: Enter Terminal marks.");
System.out.println("5: Exit.");
System.out.println("Select respective choice: ");
choiceMarks = input.nextInt();
switch (choiceMarks) {
case 1:
//to write Quiz-1 marks..
String fileName = "genQuiz_1.txt";
String type = "Quizzes:";
String marksTotal = " 20 ";
int marks[] = new int[studentNames.length];
initializerQuiz(marks);
fileWriterMarks(fileName, type, marksTotal, marks);
break;
case 2:
//to write Quiz-2 marks.
fileName = "genQuiz_2.txt";
type = "Quizzes:";
marksTotal = " 20 ";
marks = new int[studentNames.length];
initializerQuiz(marks);
fileWriterMarks(fileName, type, marksTotal, marks);
break;
case 3:
//to write Mids marks...
fileName = "genMid.txt";
type = "Mids:";
marksTotal = " 30 ";
marks = new int[studentNames.length];
initializerMid(marks);
fileWriterMarks(fileName, type, marksTotal, marks);
break;
case 4:
//to write terminal marks.
fileName = "genTerminals.txt";
type = "Terminals:";
marksTotal = " 50 ";
marks = new int[studentNames.length];
initializerTerminal(marks);
fileWriterMarks(fileName, type, marksTotal, marks);
break;
case 5:
//Using the choice as a FLAG Variable to break loop..
choiceMarks = 5;
break;
default:
//flag variable..
System.out.println("Invalid Input, please select a valid option");
}
} while (choiceMarks != 5);
break;
case 2:
do {
// to mark attendance ..
System.out.println("* Mark Attendance **");
System.out.println("1: Lab Attendance.");
System.out.println("2: Class Atendance.");
System.out.println("3: Exit.");
System.out.print("Your Choice: ");
choiceAttend = input.nextInt();
switch (choiceAttend) {
case 1:
//for lab attendance....
String fileName = "genLabAttendance.txt";
fileWriterAttendance(fileName);
break;
case 2:
//for class Attendance
fileName = "genClassAttendance.txt";
fileWriterAttendance(fileName);
break;
case 3:
choiceAttend = 3;
break;
default:
System.out.println("Invalid Input, please select a valid option");
}
} while (choiceAttend != 3);
break;
case 3:
do {
//To View marks respectivley..
System.out.println("* View Marks **");
System.out.println("1: View Quiz 1 marks.");
System.out.println("2: View Quiz 2 marks.");
System.out.println("3: View Mid marks.");
System.out.println("4: View Terminal marks.");
System.out.println("5: Exit.");
System.out.println("Select respective choice: ");
choiceMarksView = input.nextInt();
switch (choiceMarksView) {
case 1:
//to view Quiz-1 marks..
String n = "genQuiz_1.txt";
reader(n);
break;
case 2:
//to view Quiz-2 marks..
n = "genQuiz_2.txt";
reader(n);
break;
case 3:
//to view Mids marks..
n = "genMid.txt";
reader(n);
break;
case 4:
//to view Terminals marks..
n = "genTerminals.txt";
reader(n);
break;
case 5:
//flag variable to Exit..
choiceMarksView = 5;
break;
default:
System.out.println("Invalid Input, please select a valid option");
}
} while (choiceMarksView != 5);
break;
case 4:
do {
//to view Lab attendance..
System.out.println("* View Attendance **");
System.out.println("1: Lab Attendance.");
System.out.println("2: Class Atendance.");
System.out.println("3: Exit.");
System.out.print("Your Choice: ");
choiceAttendView = input.nextInt();
switch (choiceAttendView) {
case 1:
//to view lab attendance..
String n = "genLabAttendance.txt";
reader(n);
break;
case 2:
//to view class attendance
n = "genClassAttendance.txt";
reader(n);
break;
case 3:
// flag variable
choiceAttendView = 3;
break;
default:
//prompt for choices other than above case..
System.out.println("Invalid Input, please select a valid option");
}
} while (choiceAttendView != 3);
break;
case 5:
//Flag Variable for Logout to Login console..
desireOption = 5;
break;
default:
System.out.println("Invalid Input, please select a valid option");
}
} while (desireOption != 5);
System.out.println("Logging Out!");
break;
} else {
if (tries == 3) {
break;
}
System.out.println("Try Again ( You have " + (3 - tries) + " tries)");
System.out.println(" ");
System.out.println("Invalid Key!");
System.out.println(" ");
tries++;
}
}
}
//Method --> Initializer For Quiz Marks entry to avoid repitition of same code ..
private static int[] initializerQuiz(int[] marks) {
Scanner input = new Scanner(System.in);
int j = 1;
int i = 0;
while (i < marks.length) {
System.out.print("Enter obtained marks for registeration number " + j + ": ");
int mark = input.nextInt();
//Condition to avoid invalid input ..
if (mark >= 0 && mark <= 20) {
marks[i] = mark;
j++;
i++;
} else {
System.out.println("Invalid input !");
}
}
return marks;
}
//Method --> Initializer For mids Marks entry to avoid repitition of same code ..
private static int[] initializerMid(int[] marks) {
Scanner input = new Scanner(System.in);
int j = 1;
int i = 0;
while (i < marks.length) {
System.out.print("Enter obtained marks for registeration number " + j + ": ");
int mark = input.nextInt();
//Condition to avoid invalid input ..
if (mark >= 0 && mark <= 30) {
marks[i] = mark;
j++;
i++;
} else {
System.out.println("Invalid input !");
}
}
return marks;
}
//Method --> Initializer For Terminal Marks entry to avoid repitition of same code ..
private static int[] initializerTerminal(int[] marks) {
Scanner input = new Scanner(System.in);
int j = 1;
int i = 0;
while (i < marks.length) {
System.out.print("Enter obtained marks for registeration number " + j + ": ");
int mark = input.nextInt();
//Condition to avoid invalid input ..
if (mark >= 0 && mark <= 50) {
marks[i] = mark;
j++;
i++;
} else {
System.out.println("Invalid input !");
}
}
return marks;
}
//Method --> Initializer For Attendance to avoid repitition of same code ..
private static String[] initializer(String[] attendance) {
String[] x = {"p", "a", "P", "A"};
Scanner input = new Scanner(System.in);
int j = 1;
int i = 0;
while (i < attendance.length) {
System.out.print("Enter attendance status for registeration number " + j + ": ");
String attend = input.next();
if (attend.equals(x[0]) || attend.equals(x[1]) || attend.equals(x[2]) || attend.equals(x[3])) {
attendance[i] = attend;
j++;
i++;
} else {
System.out.println("Invalid Input");
}
}
return attendance;
}
//Method --> Reader For File reading of file which is passed as an argument ..
private static void reader(String n) {
try {
BufferedReader reader = new BufferedReader(new FileReader(n));
Scanner sc = new Scanner(reader);
while (sc.hasNextLine()) {
String Line = sc.nextLine();
System.out.println(Line);
}
} catch (IOException e) {
e.printStackTrace();
}
}
//Method --> File writer for Marks to avoid repitition of same code ..
private static void fileWriterMarks(String a, String b, String c, int[] marks2) {
String[] studentNames = {"Student 1 ", "Student 2", "Student 3", "Student 4 ", "Student 5 ", "Student 6 "};
try {
int[] marks = marks2;
BufferedWriter writer = new BufferedWriter(new FileWriter(a));
writer.write(b);
writer.write("\n Name: Marks: Obtained:");
for (int i = 0; i < studentNames.length; i++) {
writer.write("\n ");
writer.write(studentNames[i]);
writer.write(c);
writer.write(Integer.toString(marks[i]));
}
writer.close();
} catch (IOException e) {
e.printStackTrace();
}
}
//Method --> File writer for Attendance to avoid repitition of same code ..
private static void fileWriterAttendance(String a) {
String[] studentNames = {"Student 1 ", "Student 2", "Student 3", "Student 4 ", "Student 5 ", "Student 6 "};
try {
String attendance[] = new String[studentNames.length];
initializer(attendance);
BufferedWriter writer = new BufferedWriter(new FileWriter(a));
writer.write("Attendance:");
writer.write("\n Name: Attendance:");
for (int i = 0; i < studentNames.length; i++) {
writer.write("\n ");
writer.write(studentNames[i]);
writer.write("\t\t" + attendance[i]);
}
writer.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
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