import java.util.HashMap;

import java.util.Map;

public class CLIArgWrapper {

private static Map<String, String> arguments = new HashMap<>();

public static String getArgument(String key) {

// Retrieve argument value, returning null if not found.

return arguments.getOrDefault(key, null);

}

public static void setArgument(String key, String value) {

// Set or update an argument.

arguments.put(key, value);

}

public static void main(String[] args) {

// Example usage: Simulate CLI argument parsing.

//This would be replaced by actual CLI argument parsing logic.

if (args.length > 0) {

setArgument("name", args[0]);

}

if (args.length > 1) {

setArgument("age", args[1]);

}

if (args.length > 2) {

setArgument("city", args[2]);

}

// Accessing the arguments.

String name = getArgument("name");

String age = getArgument("age");

String city = getArgument("city");

System.out.println("Name: " + name);

System.out.println("Age: " + age);

System.out.println("City: " + city);

}

}