... began my technical career training professional developers in Visual Basic 3.0. As a result, my
writing style and chapter organization reflect a training class. Each chapter in the book begins
with ... to articulate the expected return from a technology project. When inter-
viewed, managers are incapable of explaining the productivity increases or cost savings that
are expected from a technology ... realize they have a single point of failure in their system
architecture and a gaping hole in their disaster recovery plan.
Accessing the Application
Determine the policies and practices you will use...
... which makes team collaboration unnecessarily complicated and increases
the chances of the designer creating bugs in the code logic while working on cosmetic changes.
Darie-Watson_468 1C0 2.fm Page ... versions,
you can check http://www.microsoft.com/sql /2005/ productinfo/sql2005features.asp.
The first steps in interacting with SQL Server come a bit later in this chapter when you
create the BalloonShop ...
The second phase concentrates on increasing revenue by improving the shopping experience
and actively encouraging customers to buy more by implementing product recommendations.
Again at the...
... only for demonstrating the process of allocating,
deallocating, and using a block in C. The malloc line allocates a block of memory
of the size specified in this case, sizeof(int) bytes (4 bytes). ...
struct rec
{
int i;
float f;
char c;
};
int main()
{
struct rec *p;
p=(struct rec *) malloc (sizeof(struct rec));
(*p).i=10;
{
top=NULL;
}
void stack_clear()
/* Clears ... struct stack_rec *next;
};
struct stack_rec *top=NULL;
void stack_init()
/* Initializes this library.
Call before calling anything else. */
1. The block of memory pointed to by the pointer...
... instance of TcpListener listens for TCP connection requests
and creates a new socket (in the form of a TcpClient or Socket instance) to handle each
incoming connection.
2.3.1 TCP Client
A TCP client ... access to a
NetworkStream to abstract the sending and receiving of data.
Constructors
public TcpClient();
public TcpClient(IPEndPoint localEP);
public TcpClient(string hostname, int port);
Creates ... the TCP echo client with a graphical interface.
TcpClient Summary
Description
TcpClient provides simple methods for connecting to, sending, and receiving data
over a TCP connection. The TcpClient...
... Start — Constructors 233
The C# -Provided Constructor 233
The Default Constructor 235
Constructing something 236
Executing the constructor from the debugger 238
Initializing an object directly — ... Support Inheritance 261
Changing class 261
Invalid casts at run time 262
Avoiding invalid conversions using the is and as keywords 263
Inheritance and the Constructor 265
Invoking the default base class ... errors.
The act of converting a C# source file into a living, breathing Windows
Application is called building (or compiling). If your source file has any errors,
Visual C# will find them during the...
... with excellent preparation for working with WCF in the future. This chapter
contains the following:
• Overview of WCF architecture, including the Indigo service layer, the WCF
connector, hosting ... specifications and to
aggregate them and record them in the WSDL document.
Introducing the WS- Specifications
We introduce you to the WS- specifications again in Chapter 5, and then cover them in ... Hell, in which successive installations and removals of upgraded compo-
nents cause incorrect type information to be retained in the registry. Technically, this is a
versioning problem. But in more...
... illustrates an architecture in which two separate Web services
access the same back-end business components. Each Web service provides
a distinct service interface, each of which is suitable for ... to
Indigo very smoothly.
The summary of the chapters is as follows:
Chapter 1, “Introducing Service-Oriented Architecture”: This chapter
introduces the concepts behind service-oriented architecture, ... 2:52 PM Page 1
Introducing Service-Oriented Architecture
7
Services provide flexible binding: Services fully describe themselves using
the WSDL contract. This information includes documentation...
...
when the object is accessed.
c) A static constructor can have
public as a accessibility
modifiers
74. class A
{
public static int X = B.Y + 1;
}
class B
{
public static int Y = A.X ... explicitly or implicitly.
b) Static constructors can have
accessibility modifiers.
e) Static constructors are called
when the class is loaded.
c) Static constructors cannot
be called ...
error.
c) Incompatible type for ’=’
can’t convert SubClass to
SuperClass.
b) No constructor matching
SuperClass() found in class
SuperClass
d) Wrong number of arguments
in constructor....
... implementing
an abstract class.
[1.0]
a) public abstract void class
ClassA
c) abstract public ClassA
b) public abstract class ClassA
105. Which of the following methods can be called ...
("MyDll.MyOName"
)
object myObject
=
System.Activator .C
reatInstance
(myObjectType)
b) By using the System.Reflection.
CreateInstance() method to create
an instance of object in the following
manner. ... an
int data type.
203. Which of the following is the correct syntax for declaring an indexer. [1.0]
a)
protected int this[int var1]
c) public int this(int
var1)
b) public int classname[int...
... is called automatically
when the object is accessed.
c) A static constructor can have
public as a accessibility
modifiers
74. class A
{
public static int X = B.Y + 1;
}
class B
{
public static ... value c) get
b) set d) find
100. public class A:B ,C, D{ }
The above code represents ______
[0.5]
a) multilevel interface c) multiple interface
b) hierarchical interface d) multiple inheritance
101. ... False
25. Access Modifiers for variables in C# can be the following (Select all
that apply)
[1.0]
a) Public c) Private
b) Protected d) Public protected
26. In C# , an underscore is allowed as an initial...
... some basic code profiling to examine
the effects of explicitly declaring variables as registers. Consider the fibonacci sequence generating
function fibonacci in prob1 .c, which is reproduced at ...
return 0 ;
}
Hint: In order to count words, count the transitions from non-white space to white space characters.
5
main .c: dict .c: dict.h:
#include <stdio.h> #include "dict.h" ... Electrical Engineering and Computer Science
6.087: Practical Programming inC
IAP 2010
Problem Set 3 – Solutions
Control flow. Functions. Variable scope. Static and global variables. I/O: printf...
... + cd ⇒ cd > 3ab (4)
Từ (**) ⇒ 4abcd < (ab + cd)ab ⇒ 4cd < ab + cd ⇒ ab < 3cd (5). Từ (4) và (5) ⇒ đpcm
Bài 5 (5 điểm). Cho ∆ABC cho cc cạnh BC = a, AC = b, AB = c. Diện tích ∆ABC ... gi c
c a g c A c t BC ở D và c t đường tròn ngoại tiếp ∆ABC ở E.
a) Chứng minh: AD
2
= AB.AC – BD.DC
b) Chứng minh:
cb
a
AB
BD
+
=
c) Tính bán kính đường tròn ngoại tiếp ∆ABC theo a, b, c, ... – BD.CD
b) Theo tính chất đường phân gi c:
AB BD
AC CD
=
⇒ AB.CD = AC.BD
Hay: AB(BC – BD) = AC.BD ⇔ AB.BC = AB.BD + AC.BD
⇔ AB.BC = BD(AB + AC)
Do đó:
BD BC BD a
Hay :
AB AB AC AB b c
= =
+...