string questions

private static void ( Vector<Vector<String>> bigVector, String accumulator){
	if(bigVector.isEmpty()){
		System.out.println(accumulator);
	}
	else{
		for(String word : bigVector.get(0)){
			Vector<Vector<String>> r = 
				new Vector<Vector<String>>(bigVector.subList(1, bigVector.size()));
			printWords(r, accumulator + " " + word);
		}
	}
}

printWords(l,"");

private static void printCombinations(Vector<Vector<String>> outer){
	int c = outer.size();
	int row = 1;
	for(Vector<String> v : outer){
		row *= v.size();
	}
	int[] column = new int[c];
	int count = 0;
	for(int j = 0; j < row; j++){
		for(int i = 0; i < column.length; i++){
			System.out.println(outer.get(i).get(column[i]) + " ");
		}
		System.out.println();
		column[count]++;
		while(column[count] == outer.get(count).size()){
			column[count] = 0;
			count++;
			if(count == c) return;
			column[count]++;
		}
		count = 0;
	}
}