Finishing TODO parts

.idea/.gitignore

@@ -0,0 +1,10 @@
+# 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

@@ -0,0 +1,13 @@
+<?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

@@ -0,0 +1,7 @@
+<?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

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RemoteRepositoriesConfiguration">
+    <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>
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Central Repository" />
+      <option name="url" value="https://mirror-maven.runflare.com/maven2" />
+    </remote-repository>
+  </component>
+</project>

.idea/misc.xml

@@ -0,0 +1,12 @@
+<?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

@@ -0,0 +1,6 @@
+<?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

@@ -37,28 +37,40 @@ public class Main {
 
                     // Split data into 3 parts
 
-                    List<String> part1 = null;
+                    int size = data.size();
 
-                    List<String> part2 = null;
+                    List<String> part1 = data.subList(0, size / 3);
-
+                    List<String> part2 = data.subList(size / 3, 2 * size / 3);
-                    List<String> part3 = null;
+                    List<String> part3 = data.subList(2 * size / 3, size);
 
                     // TODO:
 
-                    StudentLoader t1 = null;
+                    StudentLoader t1 = new StudentLoader(part1);
 
-                    StudentLoader t2 = null;
+                    StudentLoader t2 = new StudentLoader(part2);
 
-                    StudentLoader t3 = null;
+                    StudentLoader t3 = new StudentLoader(part3);
 
                     // TODO:
 
                     // start()
 
+                    t1.start();
+                    t2.start();
+                    t3.start();
+
                     // join()
 
+                    t1.join();
+                    t2.join();
+                    t3.join();
+
                     // merge results
 
+                    manager.addStudents(t1.getStudents());
+                    manager.addStudents(t2.getStudents());
+                    manager.addStudents(t3.getStudents());
+
                 }
 
                 case 2 -> {
@@ -96,4 +108,4 @@ public class Main {
 
     }
 
-}
+}

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

@@ -47,7 +47,7 @@ public class Student {
         // Example:
         // return id % 97;
 
-        return 0;
+        return id % 97;
     }
 
     @Override
@@ -58,13 +58,19 @@ public class Student {
         // Step 1:
         // Check null
 
+        if (obj == null) {
+            return false;
+        }
+
         // Step 2:
         // Convert obj to Student
 
+        Student student = (Student) obj;
+
         // Step 3:
         // Compare IDs
 
-        return false;
+        return this.id == student.id;
     }
 
     @Override

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

@@ -18,6 +18,8 @@ public class StudentManager {
         // Hint:
         // addAll()
 
+        students.addAll(newStudents);
+
     }
 
     public Student searchStudent(int id) {
@@ -28,6 +30,12 @@ public class StudentManager {
 
         // Compare IDs
 
+        for (Student student : students) {
+            if (student.getId() == id) {
+                return student;
+            }
+        }
+
         return null;
     }
 
@@ -39,6 +47,13 @@ public class StudentManager {
 
         // Remove student
 
+        Student student = searchStudent(id);
+
+        if (student != null) {
+            students.remove(student);
+            return true;
+        }
+
         return false;
     }
 
@@ -52,4 +67,4 @@ public class StudentManager {
 
     }
 
-}
+}

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

@@ -1,7 +1,5 @@
 package dev.thread;
 
-
-
 import dev.model.Student;
 
 import java.util.ArrayList;
@@ -38,15 +36,26 @@ public class StudentLoader extends Thread {
             // TODO:
             // split line
 
+            String[] parts = line.split(",");
+
             // TODO:
             // read values
 
+            int id = Integer.parseInt(parts[0]);
+            String name = parts[1];
+            String major = parts[2];
+            double gpa = Double.parseDouble(parts[3]);
+
             // TODO:
             // create Student
 
+            Student student = new Student(id, name, major, gpa);
+
             // TODO:
             // add to students list
 
+            students.add(student);
+
         }
 
     }
@@ -56,4 +65,4 @@ public class StudentLoader extends Thread {
         return students;
     }
 
-}
+}

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

@@ -22,6 +22,8 @@ public class FileManager {
 
             // Add line to list
 
+            lines.add(line);
+
         }
 
         reader.close();
@@ -29,4 +31,4 @@ public class FileManager {
         return lines;
     }
 
-}
+}

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

@@ -1,10 +1,24 @@
 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);
+            }
+
+        }
+    }
+}