import java.util.Iterator;


public class TokenIter implements Iterator<String>{

	//input line to be tokenized
	private String line;

	// the next Token, null if no next Token
	private String nextToken;

        // implement
	public TokenIter(String line){
	}


	@Override
	// implement
	public boolean hasNext() {
		// TODO Auto-generated method stub
		return false;
	}

	@Override
	//implement
	public String next() {
		// TODO Auto-generated method stub
		return "";
	}

	@Override
	// provided, do not change
	public void remove() {
		// TODO Auto-generated method stub
		throw new UnsupportedOperationException();
	}

        // provided
        public static void main(String[] args){
		String line;
		// you can play with other inputs on the command line
		if(args.length>0)
			line = args[0];
		// or do the standard test
		else
			line = " not BAD (true or false) && notgood ";
		System.out.println("line: [" + line + "]");
		TokenIter tokIt = new TokenIter(line);
		while(tokIt.hasNext()){
			System.out.println("next token: [" + tokIt.next() + "]");
		}
	}
}