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Removed two appendices

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This commit is contained in:
Bruce Eckel 2017-04-16 10:18:21 -07:00
parent 8b00b51c6f
commit 63e43bbe05
25 changed files with 147 additions and 464 deletions
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2
check.bat
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@ -1,2 +1,2 @@
cp ..\..\OnJava-Tools\verify_output.py .
python verify_output.py
py -3 verify_output.py

14
collectiontopics/CollectionMethods.java
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@ -79,10 +79,10 @@ Aquamarine
Azure
ten
eleven
------------------------------
******************************
Collections.max(c) = ten
Collections.min(c) = AliceBlue
------------------------------
******************************
AliceBlue
AntiqueWhite
Aquamarine
@ -93,7 +93,7 @@ Brown
BurlyWood
CadetBlue
Chartreuse
------------------------------
******************************
AntiqueWhite
Aquamarine
Azure
@ -103,13 +103,13 @@ Brown
BurlyWood
CadetBlue
Chartreuse
------------------------------
******************************
AntiqueWhite
Aquamarine
Azure
ten
eleven
------------------------------
******************************
AntiqueWhite
Aquamarine
Azure
@ -119,11 +119,11 @@ Brown
BurlyWood
CadetBlue
Chartreuse
------------------------------
******************************
c.contains(Azure) = true
c.containsAll(c2) = true
c2.isEmpty() = true
------------------------------
******************************
PapayaWhip
PeachPuff
Peru

6
collectiontopics/HTMLColorTest.java
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@ -37,7 +37,7 @@ public class HTMLColorTest {
0xFFF8DC: Cornsilk
0xDC143C: Crimson
0x00FFFF: Cyan
------------------------------
******************************
AliceBlue 0xF0F8FF
AntiqueWhite 0xFAEBD7
Aquamarine 0x7FFFD4
@ -58,7 +58,7 @@ CornflowerBlue 0x6495ED
Cornsilk 0xFFF8DC
Crimson 0xDC143C
Cyan 0x00FFFF
------------------------------
******************************
AliceBlue
AntiqueWhite
Aquamarine
@ -79,7 +79,7 @@ CornflowerBlue
Cornsilk
Crimson
Cyan
------------------------------
******************************
0xF0F8FF
0xFAEBD7
0x7FFFD4

14
collectiontopics/NavMap.java
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@ -35,9 +35,9 @@ public class NavMap {
}
/* Output:
0x000000: Black
------------------------------
******************************
0xFFFFFF: White
------------------------------
******************************
0x000000: Black
0x000080: Navy
0x00008B: DarkBlue
@ -51,11 +51,11 @@ public class NavMap {
0x00CED1: DarkTurquoise
0x00FA9A: MediumSpringGreen
0x00FF00: Lime
------------------------------
******************************
0x00BFFF: DeepSkyBlue
------------------------------
******************************
0x008B8B: DarkCyan
------------------------------
******************************
0x00FF00: Lime
0x00FA9A: MediumSpringGreen
0x00CED1: DarkTurquoise
@ -69,7 +69,7 @@ public class NavMap {
0x00008B: DarkBlue
0x000080: Navy
0x000000: Black
------------------------------
******************************
0xFFE4E1: MistyRose
0xFFEBCD: BlanchedAlmond
0xFFEFD5: PapayaWhip
@ -83,7 +83,7 @@ public class NavMap {
0xFFFFE0: LightYellow
0xFFFFF0: Ivory
0xFFFFFF: White
------------------------------
******************************
0xDA70D6: Orchid
0xDAA520: GoldenRod
0xDB7093: PaleVioletRed

12
enums/menu/Meal.java
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@ -12,7 +12,7 @@ public class Meal {
Food food = course.randomSelection();
System.out.println(food);
}
System.out.println("---");
System.out.println("***");
}
}
}
@ -21,25 +21,25 @@ SALAD
VINDALOO
GELATO
CAPPUCCINO
---
***
SPRING_ROLLS
BURRITO
GELATO
HERB_TEA
---
***
SPRING_ROLLS
BURRITO
TIRAMISU
CAPPUCCINO
---
***
SPRING_ROLLS
BURRITO
BLACK_FOREST_CAKE
LATTE
---
***
SALAD
PAD_THAI
GELATO
TEA
---
***
*/

12
enums/menu/Meal2.java
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@ -41,7 +41,7 @@ public enum Meal2 {
Food food = meal.randomSelection();
System.out.println(food);
}
System.out.println("---");
System.out.println("***");
}
}
}
@ -50,25 +50,25 @@ SALAD
VINDALOO
GELATO
CAPPUCCINO
---
***
SPRING_ROLLS
BURRITO
GELATO
HERB_TEA
---
***
SPRING_ROLLS
BURRITO
TIRAMISU
CAPPUCCINO
---
***
SPRING_ROLLS
BURRITO
BLACK_FOREST_CAKE
LATTE
---
***
SALAD
PAD_THAI
GELATO
TEA
---
***
*/

49
network/ChatterClient.java
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@ -1,49 +0,0 @@
// network/ChatterClient.java
// (c)2017 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.
// Starts multiple clients, each of which sends datagrams.
import java.net.*;
import java.io.*;
public class ChatterClient implements Runnable {
private InetAddress host;
private byte[] buf = new byte[1000];
private DatagramPacket dp =
new DatagramPacket(buf, buf.length);
private static int counter = 0;
private int id = counter++;
public ChatterClient(InetAddress host) {
this.host = host;
System.out.println(
"ChatterClient #" + id + " starting");
}
public void sendAndEcho(String msg) {
try (
// Auto-assign port number:
DatagramSocket s = new DatagramSocket();
) {
// Make and send a datagram:
s.send(Dgram.toDatagram(
msg, host, ChatterServer.INPORT));
// Block until it echoes back:
s.receive(dp);
// Display the echoed contents:
String rcvd = "Client #" + id +
", rcvd from " +
dp.getAddress() + ", " +
dp.getPort() + ": " +
Dgram.toString(dp);
System.out.println(rcvd);
} catch(IOException e) {
throw new RuntimeException(e);
}
}
@Override
public void run() {
for(int i = 0; i < 10; i++)
sendAndEcho(
"Client #" + id + ", message #" + i);
}
}

41
network/ChatterServer.java
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@ -1,41 +0,0 @@
// network/ChatterServer.java
// (c)2017 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.
// A server that echoes datagrams
import java.net.*;
import java.io.*;
public class ChatterServer implements Runnable {
static final int INPORT = 1711;
private byte[] buf = new byte[1000];
private DatagramPacket dp =
new DatagramPacket(buf, buf.length);
@Override
public void run() {
// Can listen & send on the same socket:
try (
DatagramSocket socket = new DatagramSocket(INPORT)
) {
System.out.println("Server started");
while(true) {
// Block until a datagram appears:
socket.receive(dp);
String rcvd = Dgram.toString(dp) +
", from address: " + dp.getAddress() +
", port: " + dp.getPort();
System.out.println(rcvd);
String echoString =
"Echoed: " + rcvd;
// Extract address and port from received
// datagram and send it back there:
DatagramPacket echo =
Dgram.toDatagram(echoString,
dp.getAddress(), dp.getPort());
socket.send(echo);
}
} catch(IOException e) {
throw new RuntimeException(e);
}
}
}

19
network/Dgram.java
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@ -1,19 +0,0 @@
// network/Dgram.java
// (c)2017 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.
// Converts between Strings and DataGramPackets
import java.net.*;
public class Dgram {
public static DatagramPacket toDatagram(
String s, InetAddress destIA, int destPort) {
byte[] buf = s.getBytes();
return new DatagramPacket(buf, buf.length,
destIA, destPort);
}
public static String toString(DatagramPacket p) {
return
new String(p.getData(), 0, p.getLength());
}
}

15
network/Local.java
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@ -1,15 +0,0 @@
// network/Local.java
// (c)2017 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.net.*;
public class Local {
public static InetAddress host() {
try {
return InetAddress.getByName(null);
} catch(UnknownHostException e) {
throw new RuntimeException(e);
}
}
}

27
network/LocalHost.java
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@ -1,27 +0,0 @@
// network/LocalHost.java
// (c)2017 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.
// The local loopback IP address
import java.net.*;
public class LocalHost {
public static void
main(String[] args) throws Exception {
InetAddress
local1 = InetAddress.getByName(null),
local2 = InetAddress.getByName("localhost"),
local3 = InetAddress.getByName("127.0.0.1"),
local4 = InetAddress.getLoopbackAddress();
System.out.println(local1);
System.out.println(local2);
System.out.println(local3);
System.out.println(local4);
}
}
/* Output:
localhost/127.0.0.1
localhost/127.0.0.1
/127.0.0.1
localhost/127.0.0.1
*/

29
network/MultiServer.java
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@ -1,29 +0,0 @@
// network/MultiServer.java
// (c)2017 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.
// Uses concurrency to handle any number of clients.
import java.io.*;
import java.net.*;
import java.util.concurrent.*;
public class MultiServer implements Runnable {
private final int port;
public MultiServer(int port) {
this.port = port;
}
@Override
public void run() {
System.out.println("Server: Running");
try (
ServerSocket ss = new ServerSocket(port)
) {
System.out.println("Server: " + ss);
for(int i = 0; i < 10; i++)
CompletableFuture
.runAsync(new SimpleServer(ss));
} catch(IOException e) {
throw new RuntimeException(e);
}
}
}

51
network/SimpleClient.java
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@ -1,51 +0,0 @@
// network/SimpleClient.java
// (c)2017 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.
// Sends to the server, reads from the server
import java.net.*;
import java.io.*;
import java.util.concurrent.atomic.*;
public class SimpleClient implements Runnable {
public final int port;
private static AtomicInteger idcount =
new AtomicInteger(0);
private final int id = idcount.getAndIncrement();
private InetAddress host;
public SimpleClient(InetAddress host, int port) {
this.host = host;
this.port = port;
}
@Override
public String toString() {
return "Client[" + id + "]: ";
}
@Override
public void run() {
System.out.println(this + "Running");
try(
Socket socket = new Socket(host, port);
BufferedReader in =
new BufferedReader(
new InputStreamReader(
socket.getInputStream()));
PrintWriter out =
new PrintWriter(
new BufferedWriter(
new OutputStreamWriter(
// Enable auto-flush:
socket.getOutputStream())), true);
) {
System.out.println(this.toString() + socket);
for(int i = 0; i < 10; i ++) {
out.println(this + "(*" + i + "*)");
System.out.println(this +
"Received '" + in.readLine() + "'");
}
out.println("END");
} catch(IOException e) {
throw new RuntimeException(e);
}
}
}

47
network/SimpleServer.java
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@ -1,47 +0,0 @@
// network/SimpleServer.java
// (c)2017 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.
// Echoes what the client sends.
import java.io.*;
import java.net.*;
public class SimpleServer implements Runnable {
private ServerSocket ss;
public SimpleServer(ServerSocket ss) {
this.ss = ss;
}
@Override
public String toString() { return "Server: "; }
@Override
public void run() {
System.out.println(this + "Running");
try (
// Blocks until a connection occurs:
Socket socket = ss.accept();
BufferedReader in =
new BufferedReader(
new InputStreamReader(
socket.getInputStream()));
PrintWriter out =
new PrintWriter(
new BufferedWriter(
new OutputStreamWriter(
// Boolean enables auto-flush:
socket.getOutputStream())), true)
) {
System.out.println(this.toString() + socket);
in.lines().anyMatch(message -> {
if(message.equals("END")) {
System.out.println(this +
"Received END. Closing Socket.");
return true;
}
out.println(this + message);
return false;
});
} catch(IOException e) {
throw new RuntimeException(e);
}
}
}

18
network/TestChatter.java
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@ -1,18 +0,0 @@
// network/TestChatter.java
// (c)2017 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.concurrent.*;
import java.net.*;
import onjava.Nap;
public class TestChatter {
public static void main(String[] args) {
CompletableFuture.runAsync(
new ChatterServer());
CompletableFuture.runAsync(
new ChatterClient(Local.host()));
new Nap(1);
// No exceptions means success
}
}

22
network/TestMultiServer.java
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@ -1,22 +0,0 @@
// network/TestMultiServer.java
// (c)2017 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.net.*;
import java.util.concurrent.*;
import onjava.Nap;
public class TestMultiServer {
public static final int port = 8080;
public static void main(String[] args) {
CompletableFuture.runAsync(
new MultiServer(port));
new Nap(1); // Let the server get started
for(int i = 0; i < 10; i++) {
CompletableFuture.runAsync(
new SimpleClient(Local.host(), port));
}
new Nap(4);
// No exceptions mean success
}
}

28
network/TestSimpleServer.java
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@ -1,28 +0,0 @@
// network/TestSimpleServer.java
// (c)2017 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.io.*;
import java.net.*;
import java.util.concurrent.*;
import onjava.Nap;
public class TestSimpleServer {
// Choose a port outside of the range 1-1024:
public static final int port = 8080;
public static void main(String[] args) {
try (
ServerSocket ss =
new ServerSocket(port)
) {
CompletableFuture.runAsync(
new SimpleServer(ss));
CompletableFuture.runAsync(
new SimpleClient(Local.host(), port));
new Nap(1);
// Success if no exceptions happen
} catch(IOException e) {
throw new RuntimeException(e);
}
}
}

19
network/WhoAmI.java
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@ -1,19 +0,0 @@
// network/WhoAmI.java
// (c)2017 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.
// Discovers your machine name and network address.
import java.net.*;
public class WhoAmI {
public static void
main(String[] args) throws UnknownHostException {
InetAddress whoami = InetAddress.getLocalHost();
System.out.println(whoami.getHostName());
System.out.println(whoami.getHostAddress());
}
}
/* Output:
MindviewToshibaLaptop
192.168.0.104
*/

3
onjava/HTMLColors.java
View File

@ -230,6 +230,7 @@ public class HTMLColors {
showInv(m, m.size());
}
public static void border() {
System.out.println("------------------------------");
System.out.println(
"******************************");
}
}

58
patterns/SingletonPattern.java Normal file
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@ -0,0 +1,58 @@
// patterns/SingletonPattern.java
// (c)2017 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.
interface Resource {
int getValue();
void setValue(int x);
}
// Since this isn't inherited from a Cloneable
// base class and cloneability isn't added,
// making it final prevents cloneability from
// being added through inheritance. This also
// implements thread-safe lazy initialization:
final class Singleton {
private static class
ResourceImpl implements Resource {
private int i;
private ResourceImpl(int i) {
this.i = i;
}
public synchronized int getValue() {
return i;
}
public synchronized void setValue(int x) {
i = x;
}
}
private static class ResourceHolder {
private static Resource resource =
new ResourceImpl(47);
}
public static Resource getResource() {
return ResourceHolder.resource;
}
}
public class SingletonPattern {
public static void main(String[] args) {
Resource r = Singleton.getResource();
System.out.println(r.getValue());
Resource s2 = Singleton.getResource();
s2.setValue(9);
System.out.println(r.getValue());
try {
// Can't do this: compile-time error.
// Singleton s3 = (Singleton)s2.clone();
} catch(Exception e) {
throw new RuntimeException(e);
}
}
}
/* Output:
47
9
*/

57
references/LocalCopy.java Normal file
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@ -0,0 +1,57 @@
// references/LocalCopy.java
// (c)2017 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.
// Creating local copies with clone()
class Duplo implements Cloneable {
private int n;
public Duplo(int n) { this.n = n; }
@Override
public Duplo clone() { // [1]
try {
return (Duplo)super.clone();
} catch(CloneNotSupportedException e) {
throw new RuntimeException(e);
}
}
public int getValue() { return n; }
public void setValue(int n) { this.n = n; }
public void increment() { n++; }
@Override
public String toString() {
return Integer.toString(n);
}
}
public class LocalCopy {
public static Duplo g(Duplo v) {
// Passing a reference, modifies outside object:
v.increment();
return v;
}
public static Duplo f(Duplo v) {
v = v.clone(); // [2] Local copy
v.increment();
return v;
}
public static void main(String[] args) {
Duplo a = new Duplo(11);
Duplo b = g(a);
// Reference equivalence, not object equivalence:
System.out.println("a == b: " + (a == b) +
"\na = " + a + "\nb = " + b);
Duplo c = new Duplo(47);
Duplo d = f(c);
System.out.println("c == d: " + (c == d) +
"\nc = " + c + "\nd = " + d);
}
}
/* Output:
a == b: true
a = 12
b = 12
c == d: false
c = 47
d = 48
*/

21
remote/DisplayPerfectTime.java
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@ -1,21 +0,0 @@
// remote/DisplayPerfectTime.java
// (c)2017 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.
// Uses remote object PerfectTime
// {ValidateByHand}
package remote;
import java.rmi.registry.*;
public class DisplayPerfectTime {
public static void
main(String[] args) throws Exception {
Registry reg =
LocateRegistry.getRegistry("localhost");
PerfectTime pt =
(PerfectTime)reg.lookup("PerfectTime");
for(int i = 0; i < 10; i++)
System.out.println(
"Time: "+ pt.getPerfectTime());
}
}

11
remote/PerfectTime.java
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@ -1,11 +0,0 @@
// remote/PerfectTime.java
// (c)2017 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.
// The PerfectTime remote interface
package remote;
import java.rmi.*;
public interface PerfectTime extends Remote {
long getPerfectTime() throws RemoteException;
}

13
remote/PerfectTimeImpl.java
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@ -1,13 +0,0 @@
// remote/PerfectTimeImpl.java
// (c)2017 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.
// Implementing the PerfectTime remote object
package remote;
import java.rmi.RemoteException;
public class PerfectTimeImpl implements PerfectTime {
public long getPerfectTime() throws RemoteException {
return System.currentTimeMillis();
}
}

23
remote/PerfectTimeServer.java
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@ -1,23 +0,0 @@
// remote/PerfectTimeServer.java
// (c)2017 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.
// Server for the PerfectTime remote object
// {ValidateByHand}
package remote;
import java.rmi.registry.Registry;
import java.rmi.registry.LocateRegistry;
import java.rmi.RemoteException;
import java.rmi.server.UnicastRemoteObject;
public class PerfectTimeServer {
public static void
main(String[] args) throws RemoteException {
PerfectTimeImpl pt = new PerfectTimeImpl();
PerfectTime stub = (PerfectTime)
UnicastRemoteObject.exportObject(pt, 0);
Registry registry = LocateRegistry.getRegistry();
registry.rebind("PerfectTime", stub);
System.out.println("Ready to do time");
}
}