From 6b6d1e87f1b40bfac1c3c20abab843ed6d4cedf9 Mon Sep 17 00:00:00 2001
From: Petter Karstensen <petterkarstensen@gmail.com>
Date: Wed, 10 Jan 2024 13:37:22 +0100
Subject: [PATCH] Completed exercise

---
 src/main/java/com/booleanuk/core/Exercise.java  | 17 ++++++++---------
 .../java/com/booleanuk/extension/Extension.java | 16 +++++++++++-----
 2 files changed, 19 insertions(+), 14 deletions(-)

diff --git a/src/main/java/com/booleanuk/core/Exercise.java b/src/main/java/com/booleanuk/core/Exercise.java
index 5b1fe79..74453cb 100644
--- a/src/main/java/com/booleanuk/core/Exercise.java
+++ b/src/main/java/com/booleanuk/core/Exercise.java
@@ -7,7 +7,7 @@ public class Exercise {
     // 1. The brokenUrl member above contains an invalid URL. There's a z instead of an s in the protocol (httpz instead of https).
     // Using the `replace` method on brokenUrl, set the fixedUrl member below to the correct value.
     // https://docs.oracle.com/en/java/javase/18/docs/api/java.base/java/lang/String.html#replace(char,char)
-    public String fixedUrl = "";
+    public String fixedUrl = brokenUrl.replace("httpz", "https");
 
 
     // Here's a documentation link for all string methods, use it to figure out how to complete the rest of these requirements:
@@ -16,26 +16,25 @@ public class Exercise {
 
     // 2. There are currently some upper case characters in the URL. Using an appropriate string method on the fixedUrl member above,
     // set the value of lowerCasedUrl.
-    public String lowerCasedUrl = "";
+    public String lowerCasedUrl = fixedUrl.toLowerCase();
 
 
     // 3. There is still white space on both ends of the URL! Use the appropriate string method to trim that white space
     // and set the value of the url member below
-    public String url = "";
+    public String url = lowerCasedUrl.trim();
 
 
     // 4. Using the appropriate string method on url, set the value of the protocol member below
-    public String protocol = "";
-
+    public String protocol = url.split(":")[0];
 
     // 5. Using the appropriate string method on url, set the value of the domain member below
-    public String domain = "";
-
+    public String domain = url.substring(url.indexOf("://") + 3, url.indexOf("/", url.indexOf("://") + 3));
 
     // 6. Set the length member below to the length of the url member
-    public int length = 0;
+    public int length = url.length();
 
 
     // 7. Using concatenation and existing members, set the faqUrl member below to the faq page of the boolean website
-    public String faqUrl = "";
+    public String faqUrl = protocol + "://" + domain + "/faq";
+
 }
diff --git a/src/main/java/com/booleanuk/extension/Extension.java b/src/main/java/com/booleanuk/extension/Extension.java
index 5f84cdb..90a02d4 100644
--- a/src/main/java/com/booleanuk/extension/Extension.java
+++ b/src/main/java/com/booleanuk/extension/Extension.java
@@ -27,8 +27,9 @@ public StringBuilder one() {
         StringBuilder sb = new StringBuilder();
 
         // 1. Using the sb variable above, add "Hello, world!" to the StringBuilder
-        // WRITE YOUR CODE BETWEEN THIS LINE...
 
+        // WRITE YOUR CODE BETWEEN THIS LINE...
+        sb.append(message).append(", world!");
 
 
         // ...AND THIS LINE
@@ -42,7 +43,8 @@ public StringBuilder two() {
         // 1. Using the sb variable above, add "Hello, world!" to the StringBuilder
         // 2. After adding the message, use an appropriate StringBuilder method to reverse it
         // WRITE YOUR CODE BETWEEN THIS LINE...
-
+        StringBuilder mess = sb.append(message).append(", world!");
+        sb = mess.reverse();
 
 
         // ...AND THIS LINE
@@ -57,7 +59,8 @@ public StringBuilder three() {
         // 2. After adding the message, remove the comma.
         // WRITE YOUR CODE BETWEEN THIS LINE...
 
-
+        StringBuilder mess = sb.append(message).append(", world!");
+        sb = new StringBuilder(mess.toString().replace(",", ""));
 
         // ...AND THIS LINE
 
@@ -70,8 +73,11 @@ public StringBuilder four() {
         // 1. Using the sb variable above, add "Hello, world!" to the StringBuilder
         // 2. After adding the message, replace the word "world" with the word "Java"
         // WRITE YOUR CODE BETWEEN THIS LINE...
-
-
+        StringBuilder mess = sb.append(message).append(", world!");
+        int worldIndex = sb.indexOf("world");
+        if (worldIndex != -1) {
+            sb.replace(worldIndex, worldIndex + "world".length(), "Java");
+        }
 
         // ...AND THIS LINE