[BAEL-3392] Formatted code examples for [BAEL-3392]

spring-boot-runtime/src/main/java/com/baeldung/restart/RestartController.java

@@ -0,0 +1,23 @@
+package com.baeldung.restart;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class RestartController {
+    
+    @Autowired
+    private RestartService restartService;
+    
+    @PostMapping("/restart")
+    public void restart() {
+        Application.restart();
+    }
+    
+    @PostMapping("/restartApp")
+    public void restartUsingActuator() {
+        restartService.restartApp();
+    }
+    
+}