[Ch10b] Using lambdas to sort the mountains (2aefd4e1) · Commits · examples / Head First Java 3rd Edition

src/main/java/ch10b/SortMountains.java

+4 −17

Changes for src/main/java/ch10b/SortMountains.java: 4 added lines, 17 removed lines.
Original line number	Diff line number	Diff line
		@@ -3,7 +3,6 @@ package ch10b;
		import java.util.*;

		public class SortMountains {

		public static void main(String[] args) {
		new SortMountains().go();
		}
		@@ -15,24 +14,12 @@ public class SortMountains {
		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);
		}
		}
		mountains.sort((mount1, mount2) -> mount1.name.compareTo(mount2.name));
		System.out.println("by name:\n" + mountains);

		class HeightCompare implements Comparator<Mountain> {
		public int compare(Mountain one, Mountain two) {
		return (two.height - one.height);
		mountains.sort((mount1, mount2) -> mount2.height - mount1.height);
		System.out.println("by height:\n" + mountains);
		}
		}