import java.util.HashMap;

import java.util.Map;

public class ArgumentStripper {

/**

* Strips metadata from CLI arguments for validation.

* Supports older Java versions by using String array.

*

* @param args The command-line arguments.

* @return A map containing only the argument values, or an empty map if args is null.

*/

public static Map<String, String> stripMetadata(String[] args) {

if (args == null) {

return new HashMap<>(); // Return empty map for null input

}

Map<String, String> strippedArgs = new HashMap<>();

for (int i = 0; i < args.length; i++) {

String arg = args[i];

if (arg != null && !arg.startsWith("-")) { // Skip metadata arguments (starting with "-")

strippedArgs.put(arg, ""); // Store the argument as the key and empty string as value

}

}

return strippedArgs;

}

public static void main(String[] args) {

String[] args1 = {"-name", "John Doe", "-age", "30", "--city", "New York"};

Map<String, String> stripped1 = stripMetadata(args1);

System.out.println(stripped1); // Expected output: {name=John Doe, age=30, city=New York}

String[] args2 = {"-name", "Jane", "-age", "25"};

Map<String, String> stripped2 = stripMetadata(args2);

System.out.println(stripped2); // Expected output: {name=Jane, age=25}

String[] args3 = null;

Map<String, String> stripped3 = stripMetadata(args3);

System.out.println(stripped3); // Expected output: {}

String[] args4 = {"some_value"};

Map<String, String> stripped4 = stripMetadata(args4);

System.out.println(stripped4); // Expected output: {some_value= }

}

}