LinkedListTest.java Source code

Introduction

Here is the source code for LinkedListTest.java

Source

/*
   This program is a part of the companion code for Core Java 8th ed.
   (http://horstmann.com/corejava)
    
   This program 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.
    
   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
*/

import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.ListIterator;

/**
 * This program demonstrates operations on linked lists.
 * @version 1.10 2004-08-02
 * @author Cay Horstmann
 */
public class LinkedListTest {
    public static void main(String[] args) {
        List<String> a = new LinkedList<String>();
        a.add("Amy");
        a.add("Carl");
        a.add("Erica");

        List<String> b = new LinkedList<String>();
        b.add("Bob");
        b.add("Doug");
        b.add("Frances");
        b.add("Gloria");

        // merge the words from b into a

        ListIterator<String> aIter = a.listIterator();
        Iterator<String> bIter = b.iterator();

        while (bIter.hasNext()) {
            if (aIter.hasNext())
                aIter.next();
            aIter.add(bIter.next());
        }

        System.out.println(a);

        // remove every second word from b

        bIter = b.iterator();
        while (bIter.hasNext()) {
            bIter.next(); // skip one element
            if (bIter.hasNext()) {
                bIter.next(); // skip next element
                bIter.remove(); // remove that element
            }
        }

        System.out.println(b);

        // bulk operation: remove all words in b from a

        a.removeAll(b);

        System.out.println(a);
    }
}