public int getLen() {
		if(len < 0) {
			len = 0;
			count = 0;
			for(Word word : words) {
				if(word != null) {
					len += word.getLength();
					count++;
				}
			}
		}
		return len;
	}
public int getLen() {
		if(len < 0) {
			len = 0;
			count = 0;
			for(Word word : words) {
				if(word != null) {
					len += word.getLength();
					count++;
				}
			}
		}
		return len;
	}
public int getLen ( ) { if ( len < 0 ) { len = 0 ; count = 0 ; for ( Word word : words ) { if ( word != null ) { len += word . getLength ( ) ; count ++ ; } } } return len ; }
Word Length
Word Length