Initial Commit

java-async/src/main/java/com/baeldung/async/Async.java

@@ -0,0 +1,46 @@
+package com.baeldung.async;
+
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+
+public class Async {
+
+    public static void main(String[] args) {
+        System.out.println("hello world!!");
+
+        try {
+            Future<String> completableFuture = calculateAsync();
+
+            String result = completableFuture.get();
+            
+            System.out.println(result);
+
+        } catch (InterruptedException e) {
+            // TODO Auto-generated catch block
+            e.printStackTrace();
+        } catch (ExecutionException e) {
+            // TODO Auto-generated catch block
+            e.printStackTrace();
+        }
+        
+        
+        CompletableFuture.runAsync(() -> {
+            System.out.println("This is Async");
+        });
+    }
+
+    public static Future<String> calculateAsync() throws InterruptedException {
+        CompletableFuture<String> completableFuture = new CompletableFuture<>();
+
+        Executors.newCachedThreadPool().submit(() -> {
+            Thread.sleep(500);
+            completableFuture.complete("Hello");
+            return null;
+        });
+
+        return completableFuture;
+    }
+
+}