... Files 32 9
Directories 32 9
The DriveInfo Class 33 0
Directory Class 33 0
DirectoryInfo Class 33 1
File Namespace 33 7
FileInfo Class 33 8
Types of Files 33 9
Textual Versus Binary Data Files 33 9
Reading ... Data 34 9
Sequential Versus Random Access Files 35 0
Sequential Files 35 0
Random Access Files 35 1
frmMain 35 6
Navigating the Records 36 3
Delete a Record 36 4
clsRandomAccess 36 4
Serialization and ... spade). To get anobject of the class, you must press the cookie cutter (class
template) into the cookie dough (computer memory) in order to get an actual cookie (object) . Anobject is
an instance...
... 1)h)
∈
R
N
x
−1
,
23. 5 FTCS and BTCS 245
0
5
10
15
0
20
40
60
80
100
−1.5
−1
0. 5
0
0.5
1
1.5
x
FTCS: ν = 0. 63
t
Fig. 23. 5. FTCS solution on the heat equation ( 23. 2), ( 23. 3) and ( 23. 4) with
initial and boundary ... methods
0
5
10
15
0
50
100
1 50
200
0
0.2
0. 4
0. 6
0. 8
1
x
FTCS: ν = 0 .3
t
Fig. 23. 4. FTCS solution on the heat equation ( 23. 2), ( 23. 3) and ( 23. 4) with
initial and boundary conditions ( 23. 5). Here ... N
x
= 50 and N
t
= 500 , so k = 2 ì 10
3
and h = 0. 2, we found that
err
0
= 1.5 ì 10
3
for FTCS and err
0
= 1.7 ì 10
3
for BTCS. With Crank–
Nicolson we were able to reduce N
t
to 50, so k = 2 ì 10
2
,...
...
class CreateAccount
{
static BankAccount NewBankAccount( )
{
BankAccount created = new BankAccount( );
// created.accNo = number;
// created.accBal = balance;
// created.accType ...
2. Compile the program. It will fail to compile. The error occurs in the
CreateAccount class as shown:
class CreateAccount
{
static BankAccount NewBankAccount( )
{
BankAccount created ... Program
{
static void Main( )
{
Bank.Account yours = new Bank.Account( );
}
}
class Bank
{
class Account { }
}
class Program
{
static void Main( )
{
Bank.Account yours = new Bank.Account( );
}
}
class Bank
{
...
... support
Object is an instance of a class.
Each object has a class which
defines its data and behavior
1
Lecture 1:
Object Oriented Programming
10
public class CreatePencil {
public static void ... (parameter is anobject reference)
plainPencil
plainPencil
plainPencil
p
plainPencil
p
color: PLAIN
- If you change any field of the object which the parameter refers to, the object is changed ... 0. 5f;
}
}
Pencil.java
CreatePencil.java
%> javac Pencil.java
%> javac CreatePencil.java
CreatePencil.java:4: price has private access in Pencil
p1.price = 0. 5f;
^
13
Methods – Declaration
Method declaration:...
... stream means connecting it to a file
The value of the stream variable can be thought of
as the file it is connected to
Can have its value changed
Changing a stream value means disconnecting ... â 200 7 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Streams and Assignment
A stream is a special kind of variable called
an object
Objects can use special functions to complete ... stream
object
Output can be to
The screen
A file
Slide 6- 25
Copyright â 200 7 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Calling object
Dot operator
Member function
Calling a Member Function
Calling...
... /usr/bill/rc
0. 0u 0. 1s 0: 01 8% 2+1k 3+ 2io 1pf+0w
%time wc /etc/rc /usr/bill/rc
52 178 134 7 /etc/rc
52 178 134 7 /usr/bill/rc
104 35 6 2694 total
0. 1u 0. 1s 0: 00 13% 3+ 3k 5+3io 7pf+0w
%
indicates that the cp ... (2.5).
directory A structure which contains files. At anytime you are in one particular directory whose
names can be printed by the command pwd .The chdir command will change you to
another directory ,and ... in a change to the .cshrc file which you wish to takeeffect right away.
The time command can be used to cause a command to be timed no matter howmuch CPU time it
takes. Thus
%time cp /etc/rc /usr/bill/rc
0. 0u...
... Java Tutorial
// http://java.sun.com/docs/books/tutorial/java/generics/generics.html
public class Box {
private Object object;
public void add( Objectobject ) {
this . object = object; ... of classes in an application before such an interface is
constructed. On the output side of an application, object streams can be used to write objects out to a file
so that the data associated ... compiler can promise is to return anobject of the
Object class when the readObject
method of the ObjectInputStream class is invoked; it does not know – at compile time – what type of
object...
... control α(·) back and forth between
the values ±1, causing the trajectory to switch between lying on circles centered at (±1, 0) .
The switches occur each π units of time.
39
Note very carefully that ... 0) .
Now
x(t)=X(t)x
0
= e
tM
x
0
.
Thus
Ne
tM
x
0
=0 (t ≥ 0) .
Let t = 0, to find Nx
0
= 0. Then differentiate this expression k times in t and let t =0,
to discover as well that
NM
k
x
0
=0
for k =0, 1, 2, Hence ... −
τ
∗
0
X
−1
(s)Nα
∗
(s) ds
because α
∗
(s)=0fors ≥ τ
∗
. Hence x
0
C( τ
∗
), and therefore α
∗
(·) is optimal.
According to Theorem 2. 10 there in fact exists an opimal bang-bang control.
3. 2...
... the 200 6
and 200 7 XNA Challenge Brazil competitions.
Bruno received his Bachelor of Science degree in Computer Science from PUC-MG in 200 6
and is currently a Master of Science candidate in Computer ... the location in which your project will be created.
You’re free to change this location to another directory of choice. Click OK to create a
new game project named WindowsGame1.
3. Once the ... DirectX. Since the launch of XNA in December 200 6, he has ported all
his content to XNA and is helping more than 2 ,00 0 people on their path to XNA success every
day. In July 200 7 and 200 8,...