feat: Complete timeout example for threading

.idea/.gitignore

@@ -1,10 +0,0 @@
-# Default ignored files
-/shelf/
-/workspace.xml
-# Ignored default folder with query files
-/queries/
-# Datasource local storage ignored files
-/dataSources/
-/dataSources.local.xml
-# Editor-based HTTP Client requests
-/httpRequests/

.idea/compiler.xml

@@ -1,13 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="CompilerConfiguration">
-    <annotationProcessing>
-      <profile name="Maven default annotation processors profile" enabled="true">
-        <sourceOutputDir name="target/generated-sources/annotations" />
-        <sourceTestOutputDir name="target/generated-test-sources/test-annotations" />
-        <outputRelativeToContentRoot value="true" />
-        <module name="WS-07-Multithreading-Basics-and-Hashing" />
-      </profile>
-    </annotationProcessing>
-  </component>
-</project>

.idea/encodings.xml

@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="Encoding">
-    <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
-    <file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
-  </component>
-</project>

.idea/jarRepositories.xml

@@ -1,20 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="RemoteRepositoriesConfiguration">
-    <remote-repository>
-      <option name="id" value="central" />
-      <option name="name" value="Central Repository" />
-      <option name="url" value="https://maven.devneeds.ir/" />
-    </remote-repository>
-    <remote-repository>
-      <option name="id" value="central" />
-      <option name="name" value="Maven Central repository" />
-      <option name="url" value="https://repo1.maven.org/maven2" />
-    </remote-repository>
-    <remote-repository>
-      <option name="id" value="jboss.community" />
-      <option name="name" value="JBoss Community repository" />
-      <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
-    </remote-repository>
-  </component>
-</project>

.idea/misc.xml

@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="MavenProjectsManager">
-    <option name="originalFiles">
-      <list>
-        <option value="$PROJECT_DIR$/pom.xml" />
-      </list>
-    </option>
-  </component>
-  <component name="ProjectRootManager" version="2" project-jdk-name="25" project-jdk-type="JavaSDK" />
-</project>

.idea/vcs.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="" vcs="Git" />
-  </component>
-</project>

src/main/java/dev/Main.java

@@ -11,14 +11,11 @@ public class Main {
 
     public static void main(String[] args) throws Exception {
 
-        boolean once = true;
-
         Scanner scanner = new Scanner(System.in);
 
         StudentManager manager = new StudentManager();
 
         while (true) {
-            System.out.println("==================================");
 
             System.out.println("""
                     1.Load students
@@ -26,59 +23,41 @@ public class Main {
                     3.Remove student
                     4.Print students
                     5.Exit
-                    Chose:
                     """);
 
-
-
             int choice = scanner.nextInt();
 
-
             switch (choice) {
 
                 case 1 -> {
 
-                    if(once){
                     List<String> data = FileManager.loadStudents("students.txt");
 
-                        int n = data.size();
+                    // TODO:
 
-                        List<String> part1 = data.subList(0 , n/3 );
+                    // Split data into 3 parts
 
-                        List<String> part2 = data.subList(n/3 , (2*n)/3);
+                    List<String> part1 = null;
 
-                        List<String> part3 = data.subList((2*n)/3 , n);
+                    List<String> part2 = null;
 
+                    List<String> part3 = null;
 
+                    // TODO:
 
-                        StudentLoader t1 = new StudentLoader(part1);
+                    StudentLoader t1 = null;
 
-                        StudentLoader t2 = new StudentLoader(part2);
+                    StudentLoader t2 = null;
 
-                        StudentLoader t3 = new StudentLoader(part3);
+                    StudentLoader t3 = null;
 
-                        t1.start();
+                    // TODO:
-                        t2.start();
-                        t3.start();
 
-                        t1.join();
+                    // start()
-                        t2.join();
-                        t3.join();
 
-                        manager.addStudents(t1.getStudents());
+                    // join()
-                        manager.addStudents(t2.getStudents());
-                        manager.addStudents(t3.getStudents());
-
-                        System.out.println("Loading Done");
-                        once = false;
-
-
-
-                    }
-                    else {
-                        System.out.println("you have load students befor");
-                    }
 
+                    // merge results
 
                 }
 
@@ -108,7 +87,6 @@ public class Main {
                         manager.printStudents();
 
                 case 5 -> {
-                    System.out.println("Good by");
                     return;
                 }
 

src/main/java/dev/model/Student.java

@@ -41,29 +41,32 @@ public class Student {
     @Override
     public int hashCode() {
 
-        return id % 97;
+        // TODO:
+        // Return custom hash
 
+        // Example:
+        // return id % 97;
+
+        return 0;
     }
 
     @Override
     public boolean equals(Object obj) {
 
-        if(obj == null){
+        // TODO:
+
+        // Step 1:
+        // Check null
+
+        // Step 2:
+        // Convert obj to Student
+
+        // Step 3:
+        // Compare IDs
+
         return false;
     }
 
-        Student std = (Student) obj;
-
-        if(std.hashCode() == this.hashCode()){
-            return true;
-        }
-        else {
-            return false;
-        }
-
-
-    }
-
     @Override
     public String toString() {
 

src/main/java/dev/service/StudentManager.java

@@ -1,7 +1,6 @@
 package dev.service;
 
 import dev.model.Student;
-import dev.utils.FileManager;
 
 import java.util.ArrayList;
 
@@ -12,38 +11,35 @@ public class StudentManager {
 
     public void addStudents(ArrayList<Student> newStudents) {
 
-        this.students.addAll(newStudents);
+        // TODO:
+
+        // Merge students
+
+        // Hint:
+        // addAll()
 
     }
 
     public Student searchStudent(int id) {
 
-        for(Student st : students){
+        // TODO:
-            if(st.getId() == id){
+
-                return st;
+        // Loop through students
-            }
+
-        }
+        // Compare IDs
 
         return null;
     }
 
     public boolean removeStudent(int id) {
 
-        Student removeable = null;
+        // TODO:
 
-        for(Student st: students){
+        // Find student
-            if(st.getId() == id){
-                removeable = st;
-            }
-        }
 
-        if(removeable!= null){
+        // Remove student
-            students.remove(removeable);
-            return true;
-        }
 
         return false;
-
     }
 
     public void printStudents() {

src/main/java/dev/thread/StudentLoader.java

@@ -25,15 +25,27 @@ public class StudentLoader extends Thread {
     @Override
     public void run() {
 
+        // TODO:
+
+        /*
+        Example line:
+
+        1001,Aryan,Computer Science,3.7
+         */
+
         for (String line : lines) {
 
-            String[] data = line.split(",");
+            // TODO:
+            // split line
 
-            Student mystd = new Student(Integer.parseInt(data[0]) , data[1] ,
+            // TODO:
-                    data[2] , Double.parseDouble(data[3]));
+            // read values
 
-            students.add(mystd);
+            // TODO:
+            // create Student
 
+            // TODO:
+            // add to students list
 
         }
 

src/main/java/dev/utils/FileManager.java

@@ -18,7 +18,9 @@ public class FileManager {
 
         while ((line = reader.readLine()) != null) {
 
-           lines.add(line);
+            // TODO:
+
+            // Add line to list
 
         }
 

src/main/java/lecture/multithreading/timeout/Main.java

@@ -1,10 +1,25 @@
 package lecture.multithreading.timeout;
 
 
+import java.util.Scanner;
 
 public class Main {
     public static void main(String[] args) {
-        // TODO
+
+        Scanner scanner = new Scanner(System.in);
+
+        System.out.println("you have 10 seconds: ");
+        System.out.print("enter your name: ");
+
+        MyRunnable myRunnable = new MyRunnable();
+        Thread thread = new Thread(myRunnable);
+        thread.setDaemon(true);
+        thread.start();
+
+        String name = scanner.nextLine();
+        System.out.println("hello " + name);
+
+        scanner.close();
     }
 }
 

src/main/java/lecture/multithreading/timeout/MyRunnable.java

@@ -0,0 +1,22 @@
+package lecture.multithreading.timeout;
+
+public class MyRunnable implements Runnable{
+
+    @Override
+    public void run(){
+
+        for (int i = 1; i <= 10 ; i++){
+            try {
+                Thread.sleep(1000);
+            } catch (InterruptedException e) {
+                System.out.println("thread was interrupted");
+            }
+
+            if(i == 10){
+                System.out.println("time is up");
+                System.exit(0);
+            }
+
+        }
+    }
+}