initHEADmaster

1 files changed, 22 insertions, 0 deletions

diff --git a/in_class/cse123-inclass9/ReverseString.java b/in_class/cse123-inclass9/ReverseString.java
new file mode 100644
index 0000000..f2a5858
--- /dev/null
+++ b/in_class/cse123-inclass9/ReverseString.java
@@ -0,0 +1,22 @@
+public class ReverseString {

+    public static void main(String[] args){

+        System.out.println(reverse("Hello"));

+        System.out.println(reverse("nathan"));

+        System.out.println(reverse("racecar"));

+        System.out.println(reverse("taco"));

+        System.out.println(reverse("ABBA"));

+        System.out.println(reverse(""));

+        System.out.println(reverse("a"));

+    }

+

+    public static String reverse(String str){

+        if (str.isEmpty()) {

+            return "";

+        } else if (str.length() == 1) {

+            return str;

+        }

+

+        String backwards = reverse(str.substring(1)) + str.charAt(0);

+        return backwards;

+    }

+}