29 lines
987 B
Java
29 lines
987 B
Java
// collections/UniqueWords.java
|
|
// (c)2016 MindView LLC: see Copyright.txt
|
|
// We make no guarantees that this code is fit for any purpose.
|
|
// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
|
|
import java.util.*;
|
|
import java.nio.file.*;
|
|
|
|
public class UniqueWords {
|
|
public static void
|
|
main(String[] args) throws Exception {
|
|
List<String> lines =
|
|
Files.readAllLines(Paths.get("SetOperations.java"));
|
|
Set<String> words = new TreeSet<>();
|
|
for(String line : lines)
|
|
for(String word : line.split("\\W+"))
|
|
if(word.trim().length() > 0)
|
|
words.add(word);
|
|
System.out.println(words);
|
|
}
|
|
}
|
|
/* Output:
|
|
[A, B, C, Collections, D, E, F, G, H, HashSet, I, J, K, L,
|
|
M, N, Output, Set, SetOperations, String, System, X, Y, Z,
|
|
add, addAll, added, args, class, collections, contains,
|
|
containsAll, false, from, import, in, java, main, new, out,
|
|
println, public, remove, removeAll, removed, set1, set2,
|
|
split, static, to, true, util, void]
|
|
*/
|