create base

Greeting.java

@@ -0,0 +1,6 @@
+public class Greeting {
+    public void greeting() {
+        System.out.println("Welcome to cflash!");
+        System.out.println("Would you like to flash an image (Y/n)");
+    }
+}

Main.java

@@ -0,0 +1,19 @@
+import java.util.Scanner;
+
+public class Main {
+    public static void main(String[] args) {
+        Scanner UserInput = new Scanner(System.in);
+        
+        greeting();
+        String input = UserInput.nextLine();
+        
+        if (YesNo.check(input)) {
+            System.out.println("Please choose a device");
+        } else {
+            System.out.println("Canceling...");
+            System.exit(0);
+        }
+
+        
+    }
+}

YesNo.java

@@ -0,0 +1,16 @@
+public class YesNo {
+    public static boolean check(String input) {
+        switch (input) {
+            case "Y":
+                return true;
+            case "y":
+                return true;
+            case "":
+                return true;
+            case "n":
+                return false;
+            default:
+                return false; 
+        }
+    }
+}