Added practical 6.1

Author: Princelad

src/Practical6/practical1.java

@@ -1,7 +1,35 @@
 package Practical6;
 
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.IOException;
+
 public class practical1 {
     public static void main(String[] args) {
+        if (args.length == 0) {
+            System.out.println("Error: No files provided as arguments.");
+            return;
+        }
+
+        for (String fileName : args) {
+            try {
+                int lines = countLinesInFile(fileName);
+                System.out.printf("The number of lines in %s is %d\n", fileName, lines);
+            } catch (IOException e) {
+                System.out.printf("Error reading file %s: %s\n", fileName, e.getMessage());
+            } catch (Exception e) {
+                System.out.printf("Unexpected error occurred with file %s: %s\n", fileName, e.getMessage());
+            }
+        }
+    }
 
+    private static int countLinesInFile(String fileName) throws IOException {
+        int lines = 0;
+        try (BufferedReader br = new BufferedReader(new FileReader(fileName))) {
+            while (br.readLine() != null) {
+                lines++;
+            }
+        }
+        return lines;
     }
 }