diff --git a/.idea/misc.xml b/.idea/misc.xml
index 6f29fee..5af9c98 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="21" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/src/Main.java b/src/Main.java
index 0282a9d..c7f9bb2 100644
--- a/src/Main.java
+++ b/src/Main.java
@@ -59,14 +59,48 @@ public static void main(String[] args) {
         System.out.println("size: " + size);
 
         // call your method here
+        size = replaceSpaces(buffer, size);
 
         // check the "after" buffer contents via println
         // check to see if the new buffer's size is correct
-
+        System.out.println(Arrays.toString(buffer));
+        System.out.println("size: " + size);
 
     }
 
     // write your method here
+    public static int replaceSpaces(char[] buffer, int size) {
+        // loops through buffer array
+        for(int i = 0; i < size; i++) {
+            // checks if char is equal to whitespace
+            if(buffer[i] == ' ') {
+
+                // loops from end of the array up until the whitespace
+                shiftRight(buffer, i, size);
+
+                // adds all the new characters
+                buffer[i] = '%';
+                buffer[i + 1] = '2';
+                buffer[i + 2] = '0';
+
+                // increases size
+                size += 2;
+            }
+        }
+        return size;
+    }
+
+    public static void shiftRight(char[] buffer, int start, int size) {
+        for(int i = size + 2; i > start; i--) {
+            // in case the space is at the index 0 or 1
+            if(start <= 1 && i == (start + 1)) {
+                buffer[i] = '*';
+            } else {
+                buffer[i] = buffer[i - 2];
+            }
+
+        }
+    }
 
 
 }
\ No newline at end of file