Import java.util classes explicitly

- Close Scanner in Names.java
- Suppress unused warning in Access.java

Author: phrdang

src/com/codefortomorrow/advanced/chapter16/solutions/Access.java

@@ -1,6 +1,7 @@
 package com.codefortomorrow.advanced.chapter16.solutions;
 
-import java.util.*;
+import java.util.LinkedList;
+import java.util.ArrayList;
 
 /*
 Using the methods outlined in the “Benefits of LinkedLists” section,
@@ -15,6 +16,7 @@
 
 public class Access {
 
+    @SuppressWarnings("unused")
     public static void main(String[] args) {
         long a, b;
 

src/com/codefortomorrow/advanced/chapter16/solutions/Names.java

@@ -1,6 +1,7 @@
 package com.codefortomorrow.advanced.chapter16.solutions;
 
-import java.util.*;
+import java.util.LinkedList;
+import java.util.Scanner;
 
 /*
 Create a LinkedList of Strings, and ask the user to
@@ -38,5 +39,7 @@ public static void main(String[] args) {
         list.add(0, "Apple");
         list.add(list.size() - 1, "Peanut");
         System.out.println(list);
+
+        sc.close();
     }
 }

src/com/codefortomorrow/advanced/chapter16/solutions/Sort.java

@@ -1,6 +1,7 @@
 package com.codefortomorrow.advanced.chapter16.solutions;
 
-import java.util.*;
+import java.util.LinkedList;
+import java.util.Arrays;
 
 /*
 Write a method which takes in a LinkedList of Strings