create devicecheck, filepathcheck and blocksize

.gitignore

@@ -22,3 +22,9 @@
 # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
 hs_err_pid*
 replay_pid*
+
+# IDE Stuff
+.vscode/*
+.vscode/
+*.vscode
+.vscode

BlockSize.java

@@ -0,0 +1,34 @@
+import java.util.Scanner;
+
+public class BlockSize {
+    public static void blockSize(Scanner UserInput) {
+        System.out.println("Choose a block size (Default: 4M)");
+        System.out.println("512KB (1), 1M (2), 2M (3), 4M (4), 8M (5), 16M (6)");
+        String blockSizeInput = UserInput.nextLine();
+
+        String blockSizeString;
+        switch (blockSizeInput) {
+            case "1":
+                blockSizeString = "512KB";
+                break;
+            case "2":
+                blockSizeString = "1M";
+                break;
+            case "3":
+                blockSizeString = "2M";
+                break;
+            case "4":
+                blockSizeString = "4M";
+                break;
+            case "5":
+                blockSizeString = "8M";
+                break;
+            case "6":
+                blockSizeString = "16M";
+                break;  
+            default:
+                blockSizeString = "4M";
+                break;
+        }
+    }
+}

FilePathAdd.java

@@ -0,0 +1,9 @@
+import java.util.Scanner;
+
+public class FilePathAdd {
+    public static void filePath(Scanner UserInput) {
+        System.out.println("Please enter the FULL Path of your ISO / Image. ()");
+        String Path = UserInput.nextLine();
+        System.out.println("Using File: " + Path);
+    }
+}

Greeting.java

@@ -1,5 +1,5 @@
 public class Greeting {
-    public void greeting() {
+    public static void greeting() {
         System.out.println("Welcome to cflash!");
         System.out.println("Would you like to flash an image (Y/n)");
     }

Main.java

@@ -1,18 +1,21 @@
 import java.util.Scanner;
 
 public class Main {
-    public static void main(String[] args) {
+    public static void main(String[] args) throws InterruptedException {
         Scanner UserInput = new Scanner(System.in);
         
-        greeting();
+        Greeting.greeting();
         String input = UserInput.nextLine();
         
         if (YesNo.check(input)) {
-            System.out.println("Please choose a device");
+            System.out.println("Please choose the to be flashed device (f. e. sda)");
         } else {
             System.out.println("Canceling...");
             System.exit(0);
         }
+        StorageDeviceLister.deviceList(UserInput);
+        FilePathAdd.filePath(UserInput);
+        
 
         
     }

StorageDeviceLister.java

@@ -0,0 +1,27 @@
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.Scanner;
+
+public class StorageDeviceLister {
+    static void deviceList(Scanner UserInput) {
+
+        try {
+            ProcessBuilder pb = new ProcessBuilder("lsblk");
+            Process process = pb.start();
+            
+            BufferedReader reader = new BufferedReader(
+                new InputStreamReader(process.getInputStream())
+            );
+            
+            String line;
+            while ((line = reader.readLine()) != null) {
+                System.out.println(line);
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        String device = UserInput.nextLine();
+        System.out.println("Using device: " + device);
+    }
+}