gistfile1.txt

class WordNgram{
	private int size;
	private String[] words ={};

	public WordNgram(int size){
		this.size = size;
	}

	public WordNgram(int size, String words){
		this.size = size;
		this.words = words.split(" ");
	}

	public String getWord(int size){
		String result = this.words[size - 1]; 
		if (result == null) {
			System.out.println("index out of bounds");
			return "";  	
		 }
		 return result;
	}
	
	public String toString(){
		if (words.length == 0){
			
			String value = "";
			for ( int n=0; n<size; n++) {
				value = value + ",";
			}
			return value;
		}
	}

	public static void main(String[] args) {
		WordNgram w1 = new WordNgram(7);
		System.out.println(w1);
	}
}