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/******************************************************************************
* Compilation: javac DeDup.java
* Execution: java DeDup < input.txt
* Dependencies: SET StdIn.java StdOut.java
* Data files: https://algs4.cs.princeton.edu/35applications/tinyTale.txt
*
* Read in a list of words from standard input and print out
* each word, removing any duplicates.
*
* % more tinyTale.txt
* it was the best of times it was the worst of times
* it was the age of wisdom it was the age of foolishness
* it was the epoch of belief it was the epoch of incredulity
* it was the season of light it was the season of darkness
* it was the spring of hope it was the winter of despair
*
* % java DeDup < tinyTale.txt
* it
* was
* the
* best
* of
* times
* worst
* age
* wisdom
* ...
* winter
* despair
*
******************************************************************************/
package edu.princeton.cs.algs4;
/**
* The {@code DeDup} class provides a client for reading in a sequence of
* words from standard input and printing each word, removing any duplicates.
* It is useful as a test client for various symbol table implementations.
*
* For additional documentation, see Section 3.5 of
* Algorithms, 4th Edition by Robert Sedgewick and Kevin Wayne.
*
* @author Robert Sedgewick
* @author Kevin Wayne
*/
public class DeDup {
// Do not instantiate.
private DeDup() { }
public static void main(String[] args) {
SET set = new SET();
// read in strings and add to set
while (!StdIn.isEmpty()) {
String key = StdIn.readString();
if (!set.contains(key)) {
set.add(key);
StdOut.println(key);
}
}
}
}
/******************************************************************************
* Copyright 2002-2018, Robert Sedgewick and Kevin Wayne.
*
* This file is part of algs4.jar, which accompanies the textbook
*
* Algorithms, 4th edition by Robert Sedgewick and Kevin Wayne,
* Addison-Wesley Professional, 2011, ISBN 0-321-57351-X.
* http://algs4.cs.princeton.edu
*
*
* algs4.jar is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* algs4.jar is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with algs4.jar. If not, see http://www.gnu.org/licenses.
******************************************************************************/