[Ch10b] Cleaning up and reordering mountains exercise

package ch10b;

import java.util.*;

public class SortMountains {

  LinkedList<Mountain> mtn = new LinkedList<Mountain>();

  public static void main(String[] args) {

    new SortMountains().go();

  }

  public void go() {

    List<Mountain> mountains = new LinkedList<>();

    mountains.add(new Mountain("Longs", 14255));

    mountains.add(new Mountain("Elbert", 14433));

    mountains.add(new Mountain("Maroon", 14156));

    mountains.add(new Mountain("Castle", 14265));

    System.out.println("as entered:\n" + mountains);

    NameCompare nc = new NameCompare();

    mountains.sort(nc);

    System.out.println("by name:\n" + mountains);

    HeightCompare hc = new HeightCompare();

    mountains.sort(hc);

    System.out.println("by height:\n" + mountains);

  }

}

class NameCompare implements Comparator<Mountain> {

  public int compare(Mountain one, Mountain two) {

    return one.name.compareTo(two.name);

  }

}

class HeightCompare implements Comparator<Mountain> {

  public int compare(Mountain one, Mountain two) {

    return (two.height - one.height);

  }

}

  public static void main(String [] args) {

    new SortMountains().go();

  }

  public void go() {

    mtn.add(new Mountain("Longs", 14255));

    mtn.add(new Mountain("Elbert", 14433));

    mtn.add(new Mountain("Maroon", 14156));

    mtn.add(new Mountain("Castle", 14265));

    System.out.println("as entered:\n" + mtn);

    NameCompare nc = new NameCompare();

    Collections.sort(mtn, nc);

    System.out.println("by name:\n" + mtn); 

    HeightCompare hc = new HeightCompare();

    Collections.sort(mtn, hc);

    System.out.println("by height:\n" + mtn); 

  }

}

class Mountain {

  String name;

  int height;

  final String name;

  final int height;

  Mountain(String n, int h) {

    name = n;

    height = h;

  Mountain(String name, int height) {

    this.name = name;

    this.height = height;

  }

  public String toString() {

    return name + " " + height;

  }

}

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