feat: Add comprehensive examples from multithreading and hashing lectures

src/main/java/lecture/multithreading/basics/InterruptExample.java

@@ -0,0 +1,35 @@
+package lecture.multithreading.basics;
+
+
+public class InterruptExample {
+    public static void main(String[] args) throws InterruptedException {
+        Thread worker = new Thread(new Runnable() {
+            @Override
+            public void run() {
+                System.out.println("👷 Worker started...");
+
+                try {
+                    for (int i = 1; i <= 10; i++) {
+                        System.out.println(" worker: stage " + i);
+                        Thread.sleep(1000); // Each step takes 1 second
+                    }
+                } catch (InterruptedException e) {
+                    System.out.println("🛑 Worker: Hey! Someone cut me off!");
+                    System.out.println("👷 Worker: OK, I'm finishing...");
+                }
+
+                System.out.println("👷 Goodbye worker!");
+            }
+        });
+
+        worker.start();
+
+        Thread.sleep(6500); // Let the worker work for 6.5 seconds
+
+        System.out.println("💀 Main thread: That's enough! Cut it!");
+        worker.interrupt(); // Tells the worker to stop
+
+        worker.join();
+        System.out.println("Everything is finished!");
+    }
+}