import java.util.Scanner; import java.util.Set; import java.util.SortedSet; import java.util.TreeSet; import static java.util.stream.Collectors.toCollection; import java.io.BufferedReader; import java.io.File; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.IOException; import java.util.ArrayList; import java.util.Arrays; import static java.lang.System.out; public class SimpleSubsetting { public static void main(String[] args) throws FileNotFoundException { // treeSubSetMethod(); // simpleSubSet(); subSetSkipLines(); } public static void treeSubSetMethod(){ //sub set is not populating - not sure why //http://www.tutorialspoint.com/java/util/treeset_subset.htm Integer[] nums = {12,46,52,34,87,123,14,44}; TreeSet <Integer> fullNumsList = new TreeSet<Integer>(new ArrayList<>(Arrays.asList(nums))); TreeSet <Integer> partNumsList = new TreeSet<Integer>(); out.println("Original List: " + fullNumsList.toString()); partNumsList = (TreeSet<Integer>) fullNumsList.subSet(1,3); out.println("SubSet of List: " + partNumsList.toString()); out.println(partNumsList.size()); } public static void simpleSubSet(){ Integer[] nums = {12,46,52,34,87,123,14,44}; ArrayList<Integer> numsList = new ArrayList<>(Arrays.asList(nums)); out.println("Original List: " + numsList.toString()); Set<Integer> fullNumsList = new TreeSet<Integer>(numsList); Set<Integer> partNumsList = fullNumsList.stream().skip(5).collect(toCollection(TreeSet::new)); out.println("SubSet of List: " + partNumsList.toString()); } public static void subSetSkipLines() throws FileNotFoundException{ //not behaving as expected try (BufferedReader br = new BufferedReader(new FileReader("C:\\Jenn Personal\\Packt Data Science\\Chapter 3 Data Cleaning\\stopwords.txt"))) { br .lines() .filter(s -> !s.equals("")) .forEach(s -> out.println(s)); } catch (IOException ex) { ex.printStackTrace(); } //Scanner file = new Scanner(new File("C:\\Jenn Personal\\Packt Data Science\\Chapter 3 Data Cleaning\\stopwords.txt")); // ArrayList<String> lines = new ArrayList<>(); // while(file.hasNextLine()){ // lines.add(file.nextLine()); // } // out.println("Original List: " + lines.toString()); // out.println("Original list is " + lines.size() + " elements long"); // Set<String> fullWordsList = new TreeSet<String>(lines); // Set<String> partWordsList = fullWordsList.stream().skip(2).collect(toCollection(TreeSet::new)); // out.println("SubSet of List: " + partWordsList.toString()); // out.println("Subsetted list is " + partWordsList.size() + " elements long"); // // file.close(); } }