c programming language basics ppt

... 471 20 Generics 473 20.1 Generic Class Declarations 473 20.2 Generic Struct Declarations 484 20.3 Generic Interface Declarations 484 20.4 Generic Delegate Declarations 486 20.5 Constructed Types ... international@pearsontechgroup.com Visit Addison-Wesley on the Web: www.awprofessional.com Library of Congress Cataloging-in-Publication Data Hejlsberg, Anders. The C# programming language / Anders Hejlsberg, Scott ... Golde. p cm. Includes bibliographical references and index. ISBN 0-321-15491-6 (alk paper) 1 C# (Computer program language) I Wiltamuth, Scott II Golde, Peter III Title. QA76.76.C154H45 2003 Copyright

Ngày tải lên: 12/08/2014, 23:23

... rf ti me ch ar s, si ze _t ma x, co ns t ch ar fo rm at co ns t tm tm p) This function places a maximum of m ax characters from *t mp and the f or ma t into *s according the ma x tm p fo rm at ... } c at ch ( ) { ca tc h h an dl e_ io ex ce pt io n(s ; nd le _i oe xc ep ti on s) // see §D.4.2.2 } r et ur n s re tu rn s; } The call g et _d at e(s en d,s re s,&x relies on two implicit conversions ... Section D.4.4.3 Date and Time Output 909 actual output and may contain the following special-purpose format specifiers: %a %a %A %A %b %b %B %B %c %c %d %d %H %H %I %I %j

Ngày tải lên: 12/08/2014, 19:21

... speed, accuracy, and efficiency Computers can perform all kinds of tasks ranging from running an animated 3D graphics application with background sound to calculating the number of vacation days ... Backend More Information Lesson 6: File Access and Permissions File Access by Applications Exception Handling File Access by Applets Granting Applets Permission Restricting Applications File Access ... RemoteServer Server Object Run the RMIClient1 Program Run the RMIClient2 Program RemoteSend Class Send Interface RMIClient1 Class RMIClient2 Class More Information In Closing Reader Feedback Tell us what

Ngày tải lên: 12/08/2014, 19:21

... been clicked JLabel text, clicked; JButton button, clickButton; JPanel panel; private boolean _clickMeMode = true; Constructor The constructor (shown below) creates the user interface components ... and Canada, dial your country's AT&T Direct Access Number first. Copyright © 1995-2000 Sun Microsystems, Inc. All Rights Reserved Terms of Use Privacy Policy Java(TM) Language Basics, Part ... one, actionPerformed, which is discussed below Instance Variables These next lines declare the Project Swing component classes the SwingUI class uses These are instance variables that can be accessed

Ngày tải lên: 12/08/2014, 19:21

... its associated skel and stub class files to a publicly accessible location in the /home/zelda/public_html/classes directory, which is on the server machine, so they can be publicly accessed and ... RemoteServer*.class \home\zelda\public_html\classes copy Send.class \home\zelda\public_html\classes The first two javac commands compile the RemoteServer and Send class and interface The third javac command ... command compiles the RMIClient2 class The last javac command compiles the RMIClient1 class The next line runs the rmic command on the RemoteServer server Trang 3class This command produces output class

Ngày tải lên: 12/08/2014, 19:21

... public void sendCreditCard(String creditcard){cardnum = creditcard;} public String getCreditCard(){return cardnum;} public void sendCustID(String cust){custID = cust;} public String getCustID(){return ... to source code Compile and run the example as usual Pseudo Code A cipher object is used in the encryption and decryption process The cipher object is created with a specific cryptographic algorithm ... //Make cursor go to creditCard component pearqnt.setNextFocusableComponent(creditCard); customer = new JTextField(); custID = new JLabel(" Customer ID:"); Java (TM) Language Basics, Part

Ngày tải lên: 12/08/2014, 19:21

... 5: Collections [<<BACK] [ CONTENTS ] [ NEXT>> ] A collection is an object that contains other objects and provides methods for working on the objects it contains A collection can consist ... and Canada, dial your country's AT&T Direct Access Number first. Copyright © 1995-2000 Sun Microsystems, Inc. All Rights Reserved Terms of Use Privacy Policy Java (TM) Language Basics, ... 5: Collections http://developer.java.sun.com/developer ning/Programming/BasicJava2/collec.html Trang 8JavaTM Programming Language Basics, Part 2Lesson 6: Internationalization [<<BACK] [ CONTENTS

Ngày tải lên: 12/08/2014, 19:21

... need to be public because the do not have public data Fields and methods without an access specifier such as public can only be accessed by objects created from classes in the same package Here is ... directory Unix: cd /home/zelda/classes javac server/Send.java javac server/RemoteServer.java javac client2/RMIClient2.java javac client1/RMIFrenchApp.java javac client1/RMIGermanApp.java javac client1/RMIEnglishApp.java ... instantiated by client programs, which are created from classes in the client1 and client2 directories If you do not specify public, a class can only be instantiated by an object created from a class in

Ngày tải lên: 12/08/2014, 19:21

... example: c ch ha ar r*c co on ns st t c cp p; / /const pointer to char c ch ha ar r c co on ns st t*p pc c; / /pointer to const char c co on ns st t c ch ha ar r*p pc 2; / /pointer to const char ... functions f f(c ch ha ar r), g g(c ch ha ar r&), and h h(c co on ns st t c ch ha ar r&) Call them with the arguments ´a a´, 4 49 9, 3 33 00 0, c c, u uc c, and s sc c, where c c is a c ch ar ... na am mi ic c_ _c ca as st t<type> (expr ) compile-time checked conversion s st ta ti ic c_ _c ca as st t<type> (expr ) unchecked conversion r re ei in te er rp re et t_ _c ca as st

Ngày tải lên: 12/08/2014, 19:21

... tion s st rc cp y()and specifies that it should be linked according to the C linkage conventions: func-e ex xt er n"C C"c ch ha ar r*s st rc cp y(c ch ha ar r*,c co on ns st t c ch ha ar ... ‘‘.h files’’ and ‘‘.c files,’’ respectively. Other conventions, such as C C,.c cx x,.c cp pp p, and.c cc c, are also found The manual for your com-piler will be quite specific about this issue ... effect of this declaration differs from the effect of the ‘‘plain’’ declaration e ex xt er n c ch ha ar r*s st rc cp y(c ch ha ar r*,c co on ns st t c ch ha ar r*) ; only in the linkage convention

Ngày tải lên: 12/08/2014, 19:21

... in g&, c on st c r*); St ri ng op er at or co ns t St ri ng co ns t ch ar To save space, I have left the I/O and concatenation operations as exercises The main program simply exercises the S tr ... rc mp x.r ep s, y.r ep s) 0; }; S tr in g o pe to r+(c on st S tr in g&, c on st S tr in g&); St ri ng op er at or co ns t St ri ng co ns t St ri ng S tr in g o pe to r+(c on st S tr in g&, c ... Section 11.12 A String Class 297 f ri en d b oo l o pe to r!=(c on st S tr in g& x c on st S tr in g& y fr ie nd bo ol op er at or co ns t St ri ng x, co ns t St ri ng y) { r et ur n s tr cm

Ngày tải lên: 12/08/2014, 19:21

... is done The concurrency mechanism will have a concept of locking to prevent two tasks accessing the same memory simultaneously Use the machine’s locking mechanism to implement a lock class. 9 (∗2.5) ... h () ‘‘backwards.’’ It finds the last occurrence of its second input sequence in its first input sequence, rather than the first occur- rence of its second sequence. The s se ea ar rc ch h _ _ ... ra ct t(c co on ns st t l li is t<C Cl lu ub b>& l lc c, l li is t<P Pe er rs so on n*>& o of ff f) / /place the officers from ‘lc’ on ‘off’ { f fo or r_ _e ea ch h(l lc c.b

Ngày tải lên: 12/08/2014, 19:21

... a character into the stream’s character type If that character type is c ch ha ar r, we can also read into a s si ig gn ne d c ch ha ar r and u un ns si ig gn ne d c ch ha ar r: ba as si ic c_ ... functions first skip whitespace For example: This places the first non-whitespace character from c ci in n into c c. In addition, we can read into an array of characters: Trang 14a whitespace character ... object for which only a base class isknown Since the exact type isn’t known, correct output cannot be achieved simply by defining a <<for each new type Instead, a virtual output function can

Ngày tải lên: 12/08/2014, 19:21

... of l L character-literal: ’c-char-sequence’ L’c-char-sequence’ c-char-sequence: c-char c-char-sequence c-char c-char: any member of the source character set except the single-quote, backslash, ... backslash, or new-line character escape-sequence universal-character-name escape-sequence: simple-escape-sequence octal-escape-sequence hexadecimal-escape-sequence simple-escape-sequence: one of \’ \" ... \v octal-escape-sequence: \ octal-digit \ octal-digit octal-digit \ octal-digit octal-digit octal-digit hexadecimal-escape-sequence: \x hexadecimal-digit hexadecimal-escape-sequence hexadecimal-digit

Ngày tải lên: 12/08/2014, 19:21

... 7:35 PM Trang 81 Introduction6 declares a class named Stack in a namespace called Acme.Collections The fully qual-ified name of this class is Acme.Collections.Stack The class contains several mem-bers: ... hello.cs, the program can be compiled with the Microsoft C# compiler using the command line csc hello.cs which produces an executable assembly named hello.exe The output produced by this application ... about the component; and they incorporate their own documentation C# provides language constructs to directly support these concepts, making C# a very natural language in which to create and

Ngày tải lên: 12/08/2014, 23:23

... 1);// Exception } unchecked { Console.WriteLine(i + 1);// Overflow } } lock statement class Account { decimal balance; public void Withdraw(decimal amount) { lock (this) { if (amount > balance) ... try-catch statement is used to catch exceptions that occur during execution of a block, and the try-finally statement is used to specify finalization code that is always executed, whether an exception ... an exception occurred or not The checked and unchecked statements are used to control the overflow checking con-text for integral-type arithmetic operations and conversions The lock statement

Ngày tải lên: 12/08/2014, 23:23

... public Access not limited protected Access limited to this class and classes derived from this class internal Access limited to this program protected internal Access limited to this program and classes ... static modifier is an instance method. An instance method operates on a specific instance and can access both static and instance members. The instance on which an instance method was invoked can ... public static readonly Color White = new Color(255, 255, 255); public static readonly Color Red = new Color(255, 0, 0); public static readonly Color Green = new Color(0, 255, 0); public static readonly

Ngày tải lên: 12/08/2014, 23:23

... as the con-taining class If a constructor declaration includes a static modifier, it declares a static constructor Otherwise, it declares an instance constructor Instance constructors can be ... capacity) { items = new object[capacity]; } Constructors public int Count { get { return count; } } public string Capacity { get { return items.Length; } set { if (value < count) value = count; ... that contain executable code are collectively known as the function members of a class The preceding section describes methods, which are the primary kind of function members This section describes

Ngày tải lên: 12/08/2014, 23:23

... (int c) 11 /* Return 1 if c represents an integer character (’0’ to ’9’) This function only works if the character 12 * codes for 0 to 9 are consecutive, which is the case for ASCII and EBCDIC character ... 2In practice, function interfaces tend to be much more stable (i.e., less subject to change) than code internals. Thus, the need to search for and change each occurrence of a function call is ... character sets */ 13 { 14 return c>= ’0’ && c <= ’9’; 15 } 16 17 void strcpy (char *s, char *t) 18 /* Copy character-by-character the string t to the character array s Copying ceases

Ngày tải lên: 11/12/2017, 17:10