public SomeMap() {

this.map = new HashMap();

}

// Determines whether the argument is a flag. Flags start with a dash "-" character, followed by at least one other non-whitespace character.

public static boolean isFlag(String arg) {

if (arg.length() >= 2)

{

if (arg.startsWith("-") && !(arg.isEmpty()))

{

return true;

}

}

return false;

}

//Issue: doesn't return false for null, need to fix that

public static boolean isValue(String arg) {

return !arg.startsWith("-") && !arg.trim().isEmpty();

}

//likewise with null

/**

* Determines whether the specified flag exists.

*

* @param flag the flag to search for

* @return {@code true} if the flag exists

*/

public boolean hasFlag(String flag) {

return false;

}

/**

* Determines whether the specified flag is mapped to a non-null value.

* @param flag the flag to search for

* @return {@code true} if the flag is mapped to a non-null value

*/

public boolean hasValue(String flag) {

return false;

}

/**

* Returns the value to which the specified flag is mapped as a

* {@link String}, or null if there is no mapping for the flag

* @param flag the flag whose associated value is to be returned

* @return the value to which the specified flag is mapped, or {@code null} if there is no mapping for the flag */

public String getString(String flag) {

return null;

}