add scheduled async example

spring-all/src/main/java/com/baeldung/scheduling/ScheduledFixedRateExample.java

@@ -0,0 +1,18 @@
+package com.baeldung.scheduling;
+
+import org.springframework.scheduling.annotation.Async;
+import org.springframework.scheduling.annotation.EnableAsync;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Component;
+
+@Component
+@EnableAsync
+public class ScheduledFixedRateExample {
+    @Async
+    @Scheduled(fixedRate = 1000)
+    public void scheduleFixedRateTaskAsync() throws InterruptedException {
+        System.out.println("Fixed rate task async - " + System.currentTimeMillis() / 1000);
+        Thread.sleep(2000);
+    }
+
+}

spring-all/src/main/java/com/baeldung/scheduling/SpringSchedulingFixedRateConfig.java

@@ -0,0 +1,12 @@
+package com.baeldung.scheduling;
+
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.scheduling.annotation.EnableScheduling;
+
+@Configuration
+@EnableScheduling
+@ComponentScan("com.baeldung.scheduling")
+public class SpringSchedulingFixedRateConfig {
+
+}

spring-all/src/test/java/com/baeldung/scheduling/ScheduledFixedRateExampleIntegrationTest.java

@@ -0,0 +1,17 @@
+package com.baeldung.scheduling;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(classes = { SpringSchedulingFixedRateConfig.class }, loader = AnnotationConfigContextLoader.class)
+public class ScheduledFixedRateExampleIntegrationTest {
+
+    @Test
+    public void testScheduledFixedRateAnnotation() throws InterruptedException {
+        Thread.sleep(5000);
+    }
+}