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

@@ -1,11 +1,9 @@
 package dev;
 
-import dev.model.Student;
 import dev.service.StudentManager;
 import dev.thread.StudentLoader;
 import dev.utils.FileManager;
 
-import java.util.ArrayList;
 import java.util.List;
 import java.util.Scanner;
 
@@ -39,56 +37,28 @@ public class Main {
 
                     // Split data into 3 parts
 
-                    int sp1;
-                    switch (data.size() % 3) {
-                        case 1: {
-                            sp1 = (data.size()-1)/3;
-                            break;
-                        }
-                        case 2: {
-                            sp1 = (data.size()-2)/3;
-                            break;
-                        }
-                        default: {
-                            sp1 = data.size()/3;
-                            break;
-                        }
-                    }
-                    int sp2 = sp1 * 2;
+                    List<String> part1 = null;
 
-                    List<String> part1 = data.subList(0, sp1);
+                    List<String> part2 = null;
 
-                    List<String> part2 = data.subList(sp1, sp2);
-
-                    List<String> part3 = data.subList(sp2, data.size());
+                    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;
 
                     // TODO:
 
                     // start()
 
-                    t3.start();
-                    t2.start();
-                    t1.start();
-
                     // join()
 
-                    t3.join();
-                    t2.join();
-                    t1.join();
-
                     // merge results
 
-                    manager.addStudents(t1.getStudents());
-                    manager.addStudents(t2.getStudents());
-                    manager.addStudents(t3.getStudents());
                 }
 
                 case 2 -> {
@@ -109,12 +79,7 @@ public class Main {
 
                     boolean removed = manager.removeStudent(id);
 
-                    String res = "The student with id: " + id;
-
-                    if (removed) res += "is removed successfully. ";
-                    else res += "is not found. ";
-
-                    System.out.println(res);
+                    System.out.println(removed);
 
                 }
 

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

@@ -45,7 +45,9 @@ public class Student {
         // Return custom hash
 
         // Example:
-        return id % 97;
+        // return id % 97;
+
+        return 0;
     }
 
     @Override
@@ -62,11 +64,7 @@ public class Student {
         // Step 3:
         // Compare IDs
 
-        if (obj == this) return true;
-        if (obj == null || obj.getClass() != getClass()) return false;
-
-        Student student = (Student) obj;
-        return student.getId() == id;
+        return false;
     }
 
     @Override

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

@@ -2,7 +2,6 @@ package dev.service;
 
 import dev.model.Student;
 
-import java.sql.Struct;
 import java.util.ArrayList;
 
 
@@ -19,7 +18,6 @@ public class StudentManager {
         // Hint:
         // addAll()
 
-        students.addAll(newStudents);
     }
 
     public Student searchStudent(int id) {
@@ -30,12 +28,6 @@ public class StudentManager {
 
         // Compare IDs
 
-        for (Student student : students) {
-            if (student.getId() == id) {
-                return student;
-            }
-        }
-
         return null;
     }
 
@@ -47,13 +39,6 @@ public class StudentManager {
 
         // Remove student
 
-        for (Student student : students) {
-            if (student.getId() == id) {
-                students.remove(student);
-                return true;
-            }
-        }
-
         return false;
     }
 

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

@@ -47,21 +47,6 @@ public class StudentLoader extends Thread {
             // TODO:
             // add to students list
 
-            String[] data = line.split(",");
-
-            try {
-                int id = Integer.parseInt(data[0]);
-                String name = data[1];
-                String major = data[2];
-                double gpa = Double.parseDouble(data[3]);
-
-                Student student = new Student(id, name, major, gpa);
-
-                students.add(student);
-            }
-            catch (Exception e) {
-                //...
-            }
         }
 
     }

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

@@ -22,8 +22,6 @@ public class FileManager {
 
             // Add line to list
 
-            lines.add(line);
-
         }
 
         reader.close();

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);
+            }
+
+        }
+    }
+}