From a847992d8a8b573ae932946f75dbd7ab33f412a0 Mon Sep 17 00:00:00 2001
From: Fadhlallah Almohammed <2230006097@iau.edu.sa>
Date: Sat, 6 Apr 2024 00:18:18 +0300
Subject: [PATCH] Fadhlallah-Almohammed - Level-1.4

---
 bin/App.class | Bin 562 -> 5271 bytes
 src/App.java  | 143 +++++++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 141 insertions(+), 2 deletions(-)

diff --git a/bin/App.class b/bin/App.class
index baa6c6726ecc7ff0468f1be52445c21d3cbd1d3d..b7bd9d23a9d391584b66fada56160dd29524af3e 100644
GIT binary patch
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diff --git a/src/App.java b/src/App.java
index 0a839f9..c35b5d4 100644
--- a/src/App.java
+++ b/src/App.java
@@ -1,5 +1,144 @@
+import java.util.*;
+import java.io.*;
+
 public class App {
-    public static void main(String[] args) throws Exception {
-        System.out.println("Hello, World!");
+    @SuppressWarnings("resource")
+    public static void main(String[] args) {
+
+        String userName, excuse;
+        double GPA;
+        String subjects[] = {"Math", "Physics", "Chemistry", "Programming"};
+        final double minAttend[] = {44, 42, 40, 47};
+        double studentAttend[] = new double[4];
+        String result = "Success";
+
+        Scanner myObj = new Scanner(System.in);
+
+        System.out.print("Enter your name: ");
+        userName = myObj.next();
+
+        for (int i = 0; i < subjects.length; i++) {
+            while (true) {
+                try {
+                    System.out.print(subjects[i] + ": ");
+                    studentAttend[i] = myObj.nextDouble();
+                    if (studentAttend[i] < minAttend[i]) {
+                        result = "Fail";
+                    }
+                    break;
+                } catch (InputMismatchException e) {
+                    System.out.println("Invalid input. Please enter a number.");
+                    myObj.next();
+                }
+            }
+        }
+
+        myObj.nextLine();
+        System.out.print("Mark attendance for each subject (Enter excuse of absence): ");
+        excuse = myObj.nextLine();
+
+        while (true) {
+            try {
+                System.out.print("Enter grade for the semester (out of 5): ");
+                GPA = myObj.nextDouble();
+                break;
+            } catch (InputMismatchException e) {
+                System.out.println("Invalid input. Please enter a number.");
+                myObj.next();
+            }
+        }
+
+        if (excuse.contains("hospital")) {
+            for (int i = 0; i < studentAttend.length; i++) {
+                studentAttend[i]++;
+            }
+        }
+
+        File file = new File("students.txt");
+        if (!file.exists()) {
+            try {
+                if (!file.createNewFile()) {
+                    System.out.println("Error creating new file: " + file.getAbsolutePath());
+                    return;
+                }
+            } catch (IOException e) {
+                System.out.println("An error occurred while creating the file.");
+                e.printStackTrace();
+                return;
+            }
+        }
+
+        StringBuilder fileContent = new StringBuilder();
+        boolean userExists = false;
+
+        try (Scanner fileScanner = new Scanner(file)) {
+            while (fileScanner.hasNextLine()) {
+                String line = fileScanner.nextLine();
+
+                if (line.equals("Name: " + userName)) {
+        
+                    fileContent.append(line).append("\n");
+                    for (int i = 0; i < subjects.length; i++) {
+                        fileContent.append(subjects[i] + ": " + studentAttend[i]).append("\n");
+                        if (fileScanner.hasNextLine()) {
+                            fileScanner.nextLine();
+                        }
+                    }
+                    fileContent.append("Grade: " + GPA).append("\n");
+                    if (fileScanner.hasNextLine()) {
+                        fileScanner.nextLine();
+                    }
+                    fileContent.append("Result: " + result).append("\n\n");
+                    if (fileScanner.hasNextLine()) {
+                        fileScanner.nextLine();
+                    }
+                    userExists = true;
+                } else {
+                    fileContent.append(line).append("\n");
+                }
+            }
+        } catch (FileNotFoundException e) {
+            System.out.println("An error occurred.");
+            e.printStackTrace();
+        }
+
+        if (!userExists) {
+        
+            fileContent.append("Name: ").append(userName).append("\n");
+            for (int i = 0; i < subjects.length; i++) {
+                fileContent.append(subjects[i]).append(": ").append(studentAttend[i]).append("\n");
+            }
+            fileContent.append("Grade: ").append(GPA).append("\n");
+            fileContent.append("Result: ").append(result).append("\n\n");
+        }
+
+        try (FileWriter writer = new FileWriter("students.txt")) {
+            writer.write(fileContent.toString());
+        } catch (IOException e) {
+            System.out.println("An error occurred.");
+            e.printStackTrace();
+        }
+
+        myObj.close();
+
+        System.out.println("\n**  **	      **  ********       ****\n"+
+                            "**  ****      **  **          **      **\n"+
+                            "**  **  **    **  ****      **          **\n"+
+                            "**  **    **  **  **        **          **\n"+
+                            "**  **      ****  **          **      **\n"+
+                            "**  **        **  **             ****");
+
+        System.out.println("\nStudent Information");
+        System.out.println("Name: " + userName);
+        
+        for (int i = 0; i < subjects.length; i++) {
+            System.out.println(subjects[i] + " Attendance: " + studentAttend[i] + " days");
+        }
+
+        
+        System.out.println("Grade: " + GPA + "\n");
+        System.out.println("Result: " + result);
+
+
     }
 }