Create CustomJavaApp.java

Lab-Setup-Source-Code/CustomJavaApp.java

@@ -0,0 +1,36 @@
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.PrintWriter;
+
+public class CustomJavaApp {
+
+    public static void main(String[] args) {
+        String username;
+        String password;
+
+        // Check if the provided credentials are correct
+        if (authenticate(username, password)) {
+            // Enumerate and print information about all processes
+            String desktopPath = System.getProperty("user.home") + "/Desktop";
+            String outputFile = desktopPath + "/processes.txt";
+
+            try (PrintWriter writer = new PrintWriter(new FileWriter(new File(outputFile)))) {
+                ProcessHandle.allProcesses().forEach(process -> {
+                    writer.println("Process ID: " + process.pid() + ", Process Name: " + process.info().command().orElse("N/A"));
+                });
+                System.out.println("Process list saved to " + outputFile);
+            } catch (IOException e) {
+                System.err.println("Error writing to file: " + e.getMessage());
+            }
+        } else {
+            System.out.println("Authentication failed. Exiting...");
+            System.exit(1); // Exiting the application
+        }
+    }
+
+    static boolean authenticate(String username, String password) {
+        // Hardcoded authentication (for demonstration purposes only)
+        return username.equals("admin") && password.equals("password123");
+    }
+}