diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..30cf57e
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,10 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Ignored default folder with query files
+/queries/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/.idea/compiler.xml b/.idea/compiler.xml
new file mode 100644
index 0000000..a590144
--- /dev/null
+++ b/.idea/compiler.xml
@@ -0,0 +1,13 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/encodings.xml b/.idea/encodings.xml
new file mode 100644
index 0000000..aa00ffa
--- /dev/null
+++ b/.idea/encodings.xml
@@ -0,0 +1,7 @@
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/jarRepositories.xml b/.idea/jarRepositories.xml
new file mode 100644
index 0000000..712ab9d
--- /dev/null
+++ b/.idea/jarRepositories.xml
@@ -0,0 +1,20 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..d458c91
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,12 @@
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/src/main/java/dev/Main.java b/src/main/java/dev/Main.java
index 19ca657..e1a8972 100644
--- a/src/main/java/dev/Main.java
+++ b/src/main/java/dev/Main.java
@@ -8,92 +8,70 @@ import java.util.List;
import java.util.Scanner;
public class Main {
-
public static void main(String[] args) throws Exception {
-
Scanner scanner = new Scanner(System.in);
-
StudentManager manager = new StudentManager();
while (true) {
-
System.out.println("""
1.Load students
2.Search student
3.Remove student
4.Print students
- 5.Exit
- """);
+ 5.Exit""");
int choice = scanner.nextInt();
switch (choice) {
-
case 1 -> {
-
List data = FileManager.loadStudents("students.txt");
- // TODO:
+ int size = data.size();
+ int part1Size = size / 3;
+ int part2Size = 2 * size / 3;
- // Split data into 3 parts
+ List part1 = data.subList(0, part1Size);
+ List part2 = data.subList(part1Size, part2Size);
+ List part3 = data.subList(part2Size, size);
- List part1 = null;
+ StudentLoader t1 = new StudentLoader(part1);
+ StudentLoader t2 = new StudentLoader(part2);
+ StudentLoader t3 = new StudentLoader(part3);
- List part2 = null;
+ t1.start();
+ t2.start();
+ t3.start();
- List part3 = null;
+ t1.join();
+ t2.join();
+ t3.join();
- // TODO:
-
- StudentLoader t1 = null;
-
- StudentLoader t2 = null;
-
- StudentLoader t3 = null;
-
- // TODO:
-
- // start()
-
- // join()
-
- // merge results
+ manager.addStudents(t1.getStudents());
+ manager.addStudents(t2.getStudents());
+ manager.addStudents(t3.getStudents());
+ System.out.println("Students loaded successfully.");
}
case 2 -> {
-
System.out.print("ID: ");
-
int id = scanner.nextInt();
-
System.out.println(manager.searchStudent(id));
-
}
case 3 -> {
-
System.out.print("ID: ");
-
int id = scanner.nextInt();
-
boolean removed = manager.removeStudent(id);
-
System.out.println(removed);
-
}
- case 4 ->
- manager.printStudents();
+ case 4 -> manager.printStudents();
case 5 -> {
return;
}
-
}
-
}
-
}
-
}
\ No newline at end of file
diff --git a/src/main/java/dev/model/Student.java b/src/main/java/dev/model/Student.java
index f0484f4..fe0b35f 100644
--- a/src/main/java/dev/model/Student.java
+++ b/src/main/java/dev/model/Student.java
@@ -1,21 +1,12 @@
package dev.model;
public class Student {
-
private final int id;
-
private final String name;
-
private final String major;
-
private final double gpa;
- public Student(
- int id,
- String name,
- String major,
- double gpa) {
-
+ public Student(int id, String name, String major, double gpa) {
this.id = id;
this.name = name;
this.major = major;
@@ -40,36 +31,18 @@ public class Student {
@Override
public int hashCode() {
-
- // TODO:
- // Return custom hash
-
- // Example:
- // return id % 97;
-
- return 0;
+ return id % 97;
}
@Override
public boolean equals(Object obj) {
-
- // TODO:
-
- // Step 1:
- // Check null
-
- // Step 2:
- // Convert obj to Student
-
- // Step 3:
- // Compare IDs
-
- return false;
+ if (this == obj) return true;
+ if (obj == null || getClass() != obj.getClass()) return false;
+ Student student = (Student) obj;
+ return id == student.id;
}
-
@Override
public String toString() {
-
return "Student{" +
"id=" + id +
", name='" + name + '\'' +
@@ -77,5 +50,4 @@ public class Student {
", gpa=" + gpa +
'}';
}
-
}
\ No newline at end of file
diff --git a/src/main/java/dev/service/StudentManager.java b/src/main/java/dev/service/StudentManager.java
index 403a1c6..ddcd297 100644
--- a/src/main/java/dev/service/StudentManager.java
+++ b/src/main/java/dev/service/StudentManager.java
@@ -1,55 +1,37 @@
package dev.service;
import dev.model.Student;
-
import java.util.ArrayList;
-
public class StudentManager {
-
private final ArrayList students = new ArrayList<>();
public void addStudents(ArrayList newStudents) {
-
- // TODO:
-
- // Merge students
-
- // Hint:
- // addAll()
-
+ students.addAll(newStudents);
}
public Student searchStudent(int id) {
-
- // TODO:
-
- // Loop through students
-
- // Compare IDs
-
+ for (Student student : students) {
+ if (student.getId() == id) {
+ return student;
+ }
+ }
return null;
}
public boolean removeStudent(int id) {
-
- // TODO:
-
- // Find student
-
- // Remove student
-
+ for (int i = 0; i < students.size(); i++) {
+ if (students.get(i).getId() == id) {
+ students.remove(i);
+ return true;
+ }
+ }
return false;
}
public void printStudents() {
-
for (Student student : students) {
-
System.out.println(student);
-
}
-
}
-
}
\ No newline at end of file
diff --git a/src/main/java/dev/thread/StudentLoader.java b/src/main/java/dev/thread/StudentLoader.java
index ab47522..b84da5d 100644
--- a/src/main/java/dev/thread/StudentLoader.java
+++ b/src/main/java/dev/thread/StudentLoader.java
@@ -1,59 +1,33 @@
package dev.thread;
-
-
import dev.model.Student;
-
import java.util.ArrayList;
import java.util.List;
public class StudentLoader extends Thread {
-
- // Assigned file lines
-
private final List lines;
-
- // Local student storage
-
private final ArrayList students = new ArrayList<>();
public StudentLoader(List lines) {
-
this.lines = lines;
}
@Override
public void run() {
-
- // TODO:
-
- /*
- Example line:
-
- 1001,Aryan,Computer Science,3.7
- */
-
for (String line : lines) {
+ String[] data = line.split(",");
+ if (data.length == 4) {
+ int id = Integer.parseInt(data[0].trim());
+ String name = data[1].trim();
+ String major = data[2].trim();
+ double gpa = Double.parseDouble(data[3].trim());
- // TODO:
- // split line
-
- // TODO:
- // read values
-
- // TODO:
- // create Student
-
- // TODO:
- // add to students list
-
+ students.add(new Student(id, name, major, gpa));
+ }
}
-
}
public ArrayList getStudents() {
-
return students;
}
-
}
\ No newline at end of file
diff --git a/src/main/java/dev/utils/FileManager.java b/src/main/java/dev/utils/FileManager.java
index da7f6f5..616635b 100644
--- a/src/main/java/dev/utils/FileManager.java
+++ b/src/main/java/dev/utils/FileManager.java
@@ -2,31 +2,21 @@ package dev.utils;
import java.io.BufferedReader;
import java.io.FileReader;
-
import java.util.ArrayList;
import java.util.List;
public class FileManager {
public static List loadStudents(String path) throws Exception {
-
List lines = new ArrayList<>();
-
BufferedReader reader = new BufferedReader(new FileReader(path));
-
String line;
while ((line = reader.readLine()) != null) {
-
- // TODO:
-
- // Add line to list
-
+ lines.add(line);
}
reader.close();
-
return lines;
}
-
}
\ No newline at end of file
diff --git a/src/main/java/lecture/multithreading/timeout/Main.java b/src/main/java/lecture/multithreading/timeout/Main.java
index 8258073..cf94cdf 100644
--- a/src/main/java/lecture/multithreading/timeout/Main.java
+++ b/src/main/java/lecture/multithreading/timeout/Main.java
@@ -1,10 +1,31 @@
package lecture.multithreading.timeout;
-
-
public class Main {
public static void main(String[] args) {
- // TODO
- }
-}
+ Thread worker = new Thread(() -> {
+ try {
+ System.out.println("Worker thread started...");
+ Thread.sleep(5000);
+ System.out.println("Worker thread finished its job.");
+ } catch (InterruptedException e) {
+ System.out.println("Worker thread was interrupted (Timeout reached)!");
+ }
+ });
+ worker.start();
+
+ try {
+ worker.join(2000);
+
+ if (worker.isAlive()) {
+ System.out.println("Main thread: Task took too long. Interrupting...");
+ worker.interrupt();
+ } else {
+ System.out.println("Main thread: Task completed within the time limit.");
+ }
+
+ } catch (InterruptedException e) {
+ e.printStackTrace();
+ }
+ }
+}
\ No newline at end of file