feat: Categorize website type based on domain extension using switch-case

🧠 Logic:
- Accepts a website URL as user input and extracts the domain extension using `substring` after the last dot.
- Uses a `switch-case` structure to identify and print the website type:
  - `.com` → Commercial Website
  - `.org` → Organization
  - `.gov` → Government
  - `.net` → Network
- Converts extension to lowercase for case-insensitive matching.
- Demonstrates practical string handling and conditional branching based on web domain classification.

Signed-off-by: Somesh diwan <[email protected]>

Author: Someshdiwan

Section7ConditionalStatements/src/SwitchCasesAB4.java

@@ -26,6 +26,8 @@ public static void main(String[] args) {
             case "net":
                 System.out.println("Network");
                     break;
+
+            default: System.out.println("Invalid Domain");
         }
     }
 }