Further Updates prior to releasing Version 2.0 of book

collections/ApplesAndOrangesWithoutGenerics.java

@@ -24,7 +24,7 @@ public class ApplesAndOrangesWithoutGenerics {
     apples.add(new Orange());
     for(Object apple : apples) {
       ((Apple) apple).id();
-      // Orange is detected only at run time
+      // Orange is detected only at runtime
     }
   }
 }

collections/AsListInference.java

@@ -16,19 +16,23 @@ public class AsListInference {
     List<Snow> snow1 = Arrays.asList(
       new Crusty(), new Slush(), new Powder());
     //- snow1.add(new Heavy()); // Exception
+    //- snow1.remove(0);        // Exception
 
     List<Snow> snow2 = Arrays.asList(
       new Light(), new Heavy());
     //- snow2.add(new Slush()); // Exception
+    //- snow2.remove(0);        // Exception
 
     List<Snow> snow3 = new ArrayList<>();
     Collections.addAll(snow3,
       new Light(), new Heavy(), new Powder());
     snow3.add(new Crusty());
+    snow3.remove(0);
 
     // Hint with explicit type argument specification:
     List<Snow> snow4 = Arrays.<Snow>asList(
        new Light(), new Heavy(), new Slush());
     //- snow4.add(new Powder()); // Exception
+    //- snow4.remove(0);         // Exception
   }
 }

concurrent/PSP2.txt

@@ -1,10 +0,0 @@
-0: main
-1: main
-2: main
-3: main
-4: main
-5: main
-6: main
-7: main
-8: main
-9: main

files/AddAndSubtractPaths.java

@@ -52,13 +52,12 @@ public class AddAndSubtractPaths {
   }
 }
 /* Output:
-Windows 8.1
+Windows 10
 C:\Git
-(1)r OnJava8\ExtractedExamples\files\AddAndSubtractPath
+(1)r OnJava8\ExtractedExamples\files\AddAndSubtractPaths.java
-s.java
+RealPath:
-RealPath: C:\Git\OnJava8\ExtractedExamples\files\AddAnd
+C:\Git\OnJava8\ExtractedExamples\files\AddAndSubtractPaths.java
-SubtractPaths.java
+(2)r OnJava8\ExtractedExamples\files
-(2)r OnJava8\ExtractedExamples\strings\..\files
 RealPath: C:\Git\OnJava8\ExtractedExamples\files
 (3)r OnJava8\ExtractedExamples\files
 RealPath: C:\Git\OnJava8\ExtractedExamples\files
@@ -68,7 +67,7 @@ RealPath: C:\Git\OnJava8
 RealPath: C:\Git\OnJava8
 (6)r OnJava8
 RealPath: C:\Git\OnJava8
-(7)r OnJava8\ExtractedExamples\files\.\..\..
+(7)r OnJava8
 RealPath: C:\Git\OnJava8
 (8)r OnJava8
 RealPath: C:\Git\OnJava8

files/FileSystemDemo.java

@@ -26,20 +26,22 @@ public class FileSystemDemo {
   }
 }
 /* Output:
-Windows 8.1
+Windows 10
 File Store: (C:)
 File Store: System Reserved (E:)
 File Store: (F:)
+File Store: Google Drive (G:)
 Root Directory: C:\
 Root Directory: D:\
 Root Directory: E:\
 Root Directory: F:\
+Root Directory: G:\
 Separator: \
 UserPrincipalLookupService:
-sun.nio.fs.WindowsFileSystem$LookupService$1@19e0bfd
+sun.nio.fs.WindowsFileSystem$LookupService$1@1bd4fdd
 isOpen: true
 isReadOnly: false
 FileSystemProvider:
-sun.nio.fs.WindowsFileSystemProvider@139a55
+sun.nio.fs.WindowsFileSystemProvider@55183b20
 File Attribute Views: [owner, dos, acl, basic, user]
 */

files/PartsOfPaths.java

@@ -23,7 +23,7 @@ public class PartsOfPaths {
   }
 }
 /* Output:
-Windows 8.1
+Windows 10
 Git
 OnJava8
 ExtractedExamples

files/PathAnalysis.java

@@ -38,7 +38,7 @@ public class PathAnalysis {
   }
 }
 /* Output:
-Windows 8.1
+Windows 10
 Exists: true
 Directory: false
 Executable: true
@@ -49,8 +49,8 @@ notExists: false
 Hidden: false
 size: 1617
 FileStore: (C:)
-LastModified: : 2021-01-24T15:48:37.461504Z
+LastModified: : 2021-11-08T00:34:52.693768Z
 Owner: GROOT\Bruce (User)
-ContentType: null
+ContentType: text/plain
 SymbolicLink: false
 */

files/PathInfo.java

@@ -9,17 +9,17 @@ import java.io.IOException;
 
 public class PathInfo {
   static void show(String id, Object p) {
-    System.out.println(id + ": " + p);
+    System.out.println(id + p);
   }
   static void info(Path p) {
-    show("toString", p);
+    show("toString:\n ", p);
-    show("Exists", Files.exists(p));
+    show("Exists: ", Files.exists(p));
-    show("RegularFile", Files.isRegularFile(p));
+    show("RegularFile: ", Files.isRegularFile(p));
-    show("Directory", Files.isDirectory(p));
+    show("Directory: ", Files.isDirectory(p));
-    show("Absolute", p.isAbsolute());
+    show("Absolute: ", p.isAbsolute());
-    show("FileName", p.getFileName());
+    show("FileName: ", p.getFileName());
-    show("Parent", p.getParent());
+    show("Parent: ", p.getParent());
-    show("Root", p.getRoot());
+    show("Root: ", p.getRoot());
     System.out.println("******************");
   }
   public static void main(String[] args) {
@@ -37,15 +37,16 @@ public class PathInfo {
       System.out.println(e);
     }
     URI u = p.toUri();
-    System.out.println("URI: " + u);
+    System.out.println("URI:\n" + u);
     Path puri = Paths.get(u);
     System.out.println(Files.exists(puri));
     File f = ap.toFile(); // Don't be fooled
   }
 }
 /* Output:
-Windows 8.1
+Windows 10
-toString: C:\path\to\nowhere\NoFile.txt
+toString:
+ C:\path\to\nowhere\NoFile.txt
 Exists: false
 RegularFile: false
 Directory: false
@@ -54,7 +55,8 @@ FileName: NoFile.txt
 Parent: C:\path\to\nowhere
 Root: C:\
 ******************
-toString: PathInfo.java
+toString:
+ PathInfo.java
 Exists: true
 RegularFile: true
 Directory: false
@@ -64,7 +66,7 @@ Parent: null
 Root: null
 ******************
 toString:
-C:\Git\OnJava8\ExtractedExamples\files\PathInfo.java
+ C:\Git\OnJava8\ExtractedExamples\files\PathInfo.java
 Exists: true
 RegularFile: true
 Directory: false
@@ -73,7 +75,8 @@ FileName: PathInfo.java
 Parent: C:\Git\OnJava8\ExtractedExamples\files
 Root: C:\
 ******************
-toString: C:\Git\OnJava8\ExtractedExamples\files
+toString:
+ C:\Git\OnJava8\ExtractedExamples\files
 Exists: true
 RegularFile: false
 Directory: true
@@ -83,7 +86,7 @@ Parent: C:\Git\OnJava8\ExtractedExamples
 Root: C:\
 ******************
 toString:
-C:\Git\OnJava8\ExtractedExamples\files\PathInfo.java
+ C:\Git\OnJava8\ExtractedExamples\files\PathInfo.java
 Exists: true
 RegularFile: true
 Directory: false
@@ -92,7 +95,7 @@ FileName: PathInfo.java
 Parent: C:\Git\OnJava8\ExtractedExamples\files
 Root: C:\
 ******************
-URI: file:///C:/Git/OnJava8/ExtractedExamples/files/Pat
+URI:
-hInfo.java
+file:///C:/Git/OnJava8/ExtractedExamples/files/PathInfo.java
 true
 */

functional/MethodReferences.java

@@ -2,7 +2,6 @@
 // (c)2021 MindView LLC: see Copyright.txt
 // We make no guarantees that this code is fit for any purpose.
 // Visit http://OnJava8.com for more book information.
-import java.util.*;
 
 interface Callable {                        // [1]
   void call(String s);

generics/coffee/CoffeeSupplier.java

@@ -23,7 +23,7 @@ implements Supplier<Coffee>, Iterable<Coffee> {
       return (Coffee)
         types[rand.nextInt(types.length)]
         .getConstructor().newInstance();
-      // Report programmer errors at run time:
+      // Report programmer errors at runtime:
       } catch(InstantiationException |
               NoSuchMethodException |
               InvocationTargetException |

newio/data.txt

@@ -1 +0,0 @@
-Some text Some more

references/ImmutableStrings.java

@@ -1,25 +0,0 @@
-// references/ImmutableStrings.java
-// (c)2021 MindView LLC: see Copyright.txt
-// We make no guarantees that this code is fit for any purpose.
-// Visit http://OnJava8.com for more book information.
-// Demonstrating StringBuilder
-
-public class ImmutableStrings {
-  public static void main(String[] args) {
-    String foo = "foo";
-    String s = "abc" + foo + "def"
-      + Integer.toString(47);
-    System.out.println(s);
-    // The "equivalent" using StringBuilder:
-    StringBuilder sb =
-      new StringBuilder("abc"); // Creates String
-    sb.append(foo);
-    sb.append("def"); // Creates String
-    sb.append(Integer.toString(47));
-    System.out.println(sb);
-  }
-}
-/* Output:
-abcfoodef47
-abcfoodef47
-*/

references/Stringer.java

@@ -1,22 +0,0 @@
-// references/Stringer.java
-// (c)2021 MindView LLC: see Copyright.txt
-// We make no guarantees that this code is fit for any purpose.
-// Visit http://OnJava8.com for more book information.
-
-public class Stringer {
-  public static String upcase(String s) {
-    return s.toUpperCase();
-  }
-  public static void main(String[] args) {
-    String q = new String("howdy");
-    System.out.println(q); // howdy
-    String qq = upcase(q);
-    System.out.println(qq); // HOWDY
-    System.out.println(q); // howdy
-  }
-}
-/* Output:
-howdy
-HOWDY
-howdy
-*/

streams/RandomGenerators.java

@@ -7,10 +7,10 @@ import java.util.stream.*;
 
 public class RandomGenerators {
   public static <T> void show(Stream<T> stream) {
-      stream
+    stream
-        .limit(4)
+      .limit(4)
-        .forEach(System.out::println);
+      .forEach(System.out::println);
-      System.out.println("++++++++");
+    System.out.println("++++++++");
   }
   public static void main(String[] args) {
     Random rand = new Random(47);