diff --git a/guide/english/java/interfaces/index.md b/guide/english/java/interfaces/index.md
index 3a226a6a8c..a625f8d88a 100644
--- a/guide/english/java/interfaces/index.md
+++ b/guide/english/java/interfaces/index.md
@@ -34,7 +34,7 @@ public class Car implements Vehicle {
 }
 ```
 
-![:rocket:](//forum.freecodecamp.com/images/emoji/emoji_one/rocket.png?v=2 ":rocket:") <a href='https://repl.it/CItd/0' target='_blank' rel='nofollow'>Run Code</a>
+![:rocket:](https://forum.freecodecamp.org/images/emoji/emoji_one/rocket.png?v=2 ":rocket:") <a href='https://repl.it/CItd/0' target='_blank' rel='nofollow'>Run Code</a>
 
 Now, there is a **ground rule** : The Class must implement **all** of the methods in the Interface. The methods must have _the exact same_ signature (name, parameters and exceptions) as described in the interface. The class _does not_ need to declare the fields though, only the methods.
 
@@ -78,7 +78,7 @@ Starter.startEngine(tesla); // starting engine ...
 Starter.startEngine(tata); // starting truck engine ...
 ```
 
-![:rocket:](//forum.freecodecamp.com/images/emoji/emoji_one/rocket.png?v=2 ":rocket:") <a href='https://repl.it/CItm/0' target='_blank' rel='nofollow'>Run Code</a>
+![:rocket:](https://forum.freecodecamp.org/images/emoji/emoji_one/rocket.png?v=2 ":rocket:") <a href='https://repl.it/CItm/0' target='_blank' rel='nofollow'>Run Code</a>
 
 ## But how about multiple interfaces?
 
@@ -107,7 +107,7 @@ public class Smartphone implements GPS,Radio {
 }
 ```
 
-![:rocket:](//forum.freecodecamp.com/images/emoji/emoji_one/rocket.png?v=2 ":rocket:") <a href='https://repl.it/CIto/0' target='_blank' rel='nofollow'>Run Code</a>
+![:rocket:](https://forum.freecodecamp.org/images/emoji/emoji_one/rocket.png?v=2 ":rocket:") <a href='https://repl.it/CIto/0' target='_blank' rel='nofollow'>Run Code</a>
 
 ## Some features of Interfaces
 
@@ -157,7 +157,7 @@ Smartphone motoG = new Smartphone();
 motog.getRoughCoordinates(); // Fetching rough coordinates...
 ```
 
-![:rocket:](//forum.freecodecamp.com/images/emoji/emoji_one/rocket.png?v=2 ":rocket:") <a href='https://repl.it/CItp/0' target='_blank' rel='nofollow'>Run Code</a>
+![:rocket:](https://forum.freecodecamp.org/images/emoji/emoji_one/rocket.png?v=2 ":rocket:") <a href='https://repl.it/CItp/0' target='_blank' rel='nofollow'>Run Code</a>
 
 ### But, what happens if two interfaces have the same method signature?
 
@@ -194,7 +194,7 @@ Smartphone motoG = new Smartphone();
 motoG.next(); // Next from MusicPlayer
 ```
 
-![:rocket:](//forum.freecodecamp.com/images/emoji/emoji_one/rocket.png?v=2 ":rocket:") <a href='https://repl.it/CIts/0' target='_blank' rel='nofollow'>Run Code</a>
+![:rocket:](https://forum.freecodecamp.org/images/emoji/emoji_one/rocket.png?v=2 ":rocket:") <a href='https://repl.it/CIts/0' target='_blank' rel='nofollow'>Run Code</a>
 
 ## Static Methods in Interfaces
 
@@ -225,7 +225,7 @@ class Main {
 }
 ```
 
-![:rocket:](//forum.freecodecamp.com/images/emoji/emoji_one/rocket.png?v=2 ":rocket:") <a href='https://repl.it/CIts/9' target='_blank' rel='nofollow'>Run Code</a>
+![:rocket:](https://forum.freecodecamp.org/images/emoji/emoji_one/rocket.png?v=2 ":rocket:") <a href='https://repl.it/CIts/9' target='_blank' rel='nofollow'>Run Code</a>
 
 ## Inheriting an Interface
 
@@ -261,7 +261,7 @@ public class SmartPhone implements MusicPlayer {
 }
 ```
 
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+![:rocket:](https://forum.freecodecamp.org/images/emoji/emoji_one/rocket.png?v=2 ":rocket:") <a href='https://repl.it/CIty/0' target='_blank' rel='nofollow'>Run Code</a>
 
 Whoops, did I forget `next()` ? See, since it was a `default` method, I didn't had to provide an implementation at all. (Won't work for JDK < 8)