From 17bc81bd8cb8719a6b4a69bd38bdf3f38a656e1d Mon Sep 17 00:00:00 2001
From: "Pedro V.R" <PValdovinos@noreply.github.com>
Date: Tue, 9 Jan 2024 10:06:19 -0800
Subject: [PATCH 1/3] Added method header for isUnique

---
 src/Main.java | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/Main.java b/src/Main.java
index 930198c..dd9ff28 100644
--- a/src/Main.java
+++ b/src/Main.java
@@ -11,5 +11,14 @@ public static void main(String[] args) {
             // for you, but you can always add more by pressing <shortcut actionId="ToggleLineBreakpoint"/>.
             System.out.println("i = " + i);
         }
+
+        // quick test
+        boolean result = isUnique("Always");
+        System.out.println(result);
+    }
+
+    public static boolean isUnique(String word)
+    {
+        return false;
     }
 }
\ No newline at end of file

From 29d0cbe7d65f639c4ab70f5414c1a3ad5fe092e0 Mon Sep 17 00:00:00 2001
From: "Pedro V.R" <PValdovinos@noreply.github.com>
Date: Tue, 9 Jan 2024 10:11:31 -0800
Subject: [PATCH 2/3] Added method header for isUnique

---
 src/Main.java | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Main.java b/src/Main.java
index dd9ff28..16321c0 100644
--- a/src/Main.java
+++ b/src/Main.java
@@ -17,6 +17,11 @@ public static void main(String[] args) {
         System.out.println(result);
     }
 
+    /**
+     * isUnique checks if all the characters in the string are unique
+     * @param word
+     * @return
+     */
     public static boolean isUnique(String word)
     {
         return false;

From 0131a12a4a4c5639a0072e70e6dd75f12d533ca5 Mon Sep 17 00:00:00 2001
From: "Pedro V.R" <PValdovinos@noreply.github.com>
Date: Tue, 9 Jan 2024 11:00:39 -0800
Subject: [PATCH 3/3] Added method header for isUnique

---
 src/Main.java | 38 ++++++++++++++++++++++++--------------
 1 file changed, 24 insertions(+), 14 deletions(-)

diff --git a/src/Main.java b/src/Main.java
index 16321c0..62eafed 100644
--- a/src/Main.java
+++ b/src/Main.java
@@ -11,19 +11,29 @@ public static void main(String[] args) {
             // for you, but you can always add more by pressing <shortcut actionId="ToggleLineBreakpoint"/>.
             System.out.println("i = " + i);
         }
-
-        // quick test
-        boolean result = isUnique("Always");
-        System.out.println(result);
+        System.out.println("Is 'string' a unique word: " +isUnique("string"));
+        System.out.println("Is 'unique' a unique word: " + isUnique("unique"));
     }
 
-    /**
-     * isUnique checks if all the characters in the string are unique
-     * @param word
-     * @return
-     */
-    public static boolean isUnique(String word)
-    {
-        return false;
-    }
-}
\ No newline at end of file
+        public static boolean isUnique(String word) throws StringIndexOutOfBoundsException
+        {
+            return isUnique(word, 0);
+        }
+
+        public static boolean isUnique(String word, int index) throws StringIndexOutOfBoundsException
+        {
+            char letter = word.charAt(index);
+            for (int i = 0; i < word.length(); i++)
+            {
+                if(letter == word.charAt(i) && i != index)
+                {
+                    return false;
+                }
+            }
+            if (letter == word.charAt((word.length()-1)))
+            {
+                return isUnique(word, index+1);
+            }
+            return true;
+        }
+    }
\ No newline at end of file