fundamentals of the java programming language java se 7

... Trang 1The Future of the COBOL Programming Language Karl Schenk University of Wisconsin-Platteville Department of Computer Science and Software Engineering Trang 3 COBOL ... Education University of Wisconsin Madison Trang 42COBOL and Higher Education Study of Business Managers knowledge of COBOL  Because of the vast amount of code still being used procedural and ... Introductory course: Computer Programming in COBOL  4 other classes  Systems Analysis and Design  Systems Design and Implementation  CICS Application Programming  Applications of Information

Ngày tải lên: 23/10/2014, 20:10

... get the encrypted session key and credit card number, load the private key, use the private key to decrypt the session key, and use the session key to decrypt the credit card number Java (TM) Language ... to do the asymmetric encryption of the session key One way uses an RSA key to encrypt the symmetric key The other way uses another asymmetric algorithm to seal (encrypt) the symmetric key Sealing ... key, and in the case of asymmetric encryption, the key is either the public or private key Server The Send interface declares and the RemoteServer class implements methods to handle the encrypted

Ngày tải lên: 12/08/2014, 19:21

... Trang 3Chapter 7 General Programming This chapter is largely devoted to the nuts and bolts of the language It discusses the treatment of local variables, the use of libraries, the use of various ... variables, i and n, both of which have exactly the right scope The use of the second variable is essential to the performance of the idiom Without it, the loop would have to call the size method once ... the next release By using a standard library, you take advantage of the knowledge of the experts who wrote it and the experience of those who used it before you A second advantage of using the

Ngày tải lên: 12/08/2014, 22:22

... and the rest of the code still works In the managed type system, the array type is a type inheriting from Object, like all types in the CTS Note the syntax used to declare the array We use the ... like the one in the upcoming listing, choosing to reflect the atomic number—the number of protons, which determines what type of element it is; and the isotope number—the number of protons plus the ... Tour of the C++/CLI Language Features The aim of this chapter is to give you a general idea of what C++/CLI is all about by providing a brief look at most of the new language features in the

Ngày tải lên: 05/10/2013, 08:20

... Expression The left operand of the , is evaluated, then the right operand is evaluated The type of the expression is the type of the right operand, and the result is the result of the right operand ... evaluates to false, then the right operand is not evaluated If the result type of the AndAnd expression is bool then the result of the expression is false If the left operand is true, then the right ... and the second is an integral type, the resulting type is the type of the first operand, and the resulting value is the pointer plus (or minus) the second operand multiplied by the size of the

Ngày tải lên: 27/06/2014, 11:20

... or close enough to t, then go back to the beginning of the Outer loop Otherwise, backpropagate through the neural network and adjust the weights so that the next y is closer to t (see the next ... predict the perfor-mance of a particular stock in the stock market, the abscissa may represent various parameters of the stock (such as the price of the stock the day before, and so on), and the ... equal or close enough to t, then go back to the beginning of the Outer loop Otherwise, backpropagate through the neural network and adjust the weights so that the next y is closer to t, then go

Ngày tải lên: 03/07/2014, 16:09

... generalization of this problem, is presented in Section 9.3 andused in examples in Chapter 21.) Consider the code in the Barrier class (see the start of Section 6.3).Can the done semaphore be replaced ... that arrives atthe barrier signal the other workers Hint: Use a counter protected by acritical section Trang 11Rewrite the code in the Barrier and Workers classes (see the end ofSection 6.3) to ... block of code.Other examples below show how to declare semaphores at the class level Thesemaphore operations can be applied to individual elements of the array, e.g., a V on the second element of

Ngày tải lên: 12/08/2014, 13:22

... ordering of invocation servic- ing is that the semantics of JR’s input statement picks which operation to service based on the arrival times of the invocations. Suppose that the semantics of JR’s ... either... passes them references for their left and right servants The order of these references is switched for the last philosopher (i.e., the Philosopher passed an id of n) Thus the last ... possesses (because the fork is dirty) In this case it passes the fork to its neighbor and then immediately requests the fork’s return To reduce the number of messages exchanged, the

Ngày tải lên: 12/08/2014, 13:22

... centralized server Clientsinvoke the serv operation and wait for the result from the single server In the following code, the BagServer class extends the original Server classand redefines the serv ... (graph-at the server) to service the invocgraph-ation Figure 13.1 Distribution of servicing through redefinition of operation in subclass BagServer The following code segment defines the original ... The exceptions listed in the throws clause of an operation command mustmatch those listed in the throws clause of the operation or capability specified by the op-expr of the operation command.

Ngày tải lên: 12/08/2014, 13:22

... of Point in the same row and receives their elements of A The compute process thensends its value of Brc to other instances of Point in the same column andreceives their elements of B After these ... examples, see the adaptive quadrature example in Section 7.7, andthe two solutions to the traveling salesman problem in Sections 17.2 and 17.3.This program should show nearly perfect speedup—over the ... family of processes (using theprocess abbreviation) because those processes might execute before the code in the compute method initializes instance variables used within strip (SeeExercise 15.3.)

Ngày tải lên: 12/08/2014, 13:22

... invokes the cl (close) operation, atwhich point the file server closes the file and then terminates Trang 1818.2 Directory and File Servers 271The FileServer makes use of two other simple classes ... Analyze the performance of this program forvarious sets of input data and various numbers of worker processes.Compare the performance of this program to that of the program inSection 17.2 Modify the ... some city in thepartial tour, and insert that city between a pair of cities already in thetour so that the insertion causes the minimum increase in total length ofthe partial tour 17.12 Write a

Ngày tải lên: 12/08/2014, 13:22

... of the ball If the new location is at the top or the bottom of the board, it in effect makes the ball “bounce off” the border If the new location of the ball isoff the board to the left or the ... mouse’slocation (If the box is on a different board, the box should move tothe specified position located on the other board.) clicking the mouse within the board will set the focus (for the ... game, mouseclicks are not used by the board (MouseInput does print out the cursor’sposition, though.) So, the board passes a noop capability as the mouseClickparameter to its instance of MouseInput

Ngày tải lên: 12/08/2014, 13:22

... into the use of C++.6.1.1 The Parser [expr.parser] Here is a grammar for the language accepted by the calculator: In other words, a program is a sequence of expressions separated by semicolons The ... implement the notion of a small set (a bit vector) In this case, each bit of an unsigned integer represents one member of the set, and the number ofbits limits the number of members The binary ... for the machine is often(rightly) considered offensive The task of a low-level input routine is to read characters and com-pose higher-level tokens from them These tokens are then the units of

Ngày tải lên: 12/08/2014, 19:21

... Classes Chapter 10The fundamental idea in defining a new type is to separate the incidental details of the mentation (e.g., the layout of the data used to store an object of the type) from the ... the properties essen-tial to the correct use of it (e.g., the complete list of functions that can access the data) Such a sep-aration is best expressed by channeling all uses of the data structure ... examine only the definition of the member functions in order to learn to use a class The protection of private data relies on restriction of the use of the class member names It cantherefore be

Ngày tải lên: 12/08/2014, 19:21

... 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 in g operators a bit: St ri ng S tr in g f St ... 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

Ngày tải lên: 12/08/2014, 19:21

... fine, but while the first type parameter is used both in the type of src and in the bound of the second type parameter, S, S itself is only used once, in the type of dst - nothing else depends on ... using the latest version of the Java programming language, which supports generics. Alas, in reality this isn’t the case. Millions of lines of code have been written in earlier versions of the language, ... EmpInfo();} } and call it select(getMyEmpInfoFactory(), ”selection string”); The downside of this solution is that it requires either: ã the use of verbose anonymous factory classes at the call site, or 16 ...

Ngày tải lên: 26/10/2013, 18:15

... Scheduling Exercises 173 173 174 174 175 176 177 177 178 179 180 185 186 1 87 188 190 191 193 194 1 97 1 97 198 198 199 199 199 199 200 200 201 203 204 THE JR PROGRAMMING LANGUAGE Concurrent Programming ... e.g., see Section 5.5 for an example of how to use only shared variables to program synchronization and see Section 6.1 for an example of how to use semaphores. The second important aspect of JR ... essentially gives the types of the parameters and the return value. So, the square op-method from the previous section can be written equivalently as The method is said to service invocations of...

Ngày tải lên: 27/06/2014, 08:20

... /simpleHTML.html">Form</A>"); out.close(); } Note: To learn how to use the other methods available in the HttpServlet, HttpServletRequest, and HttpServletResponse classes, see The Java Tutorial trail on Servlets. More ... some of the other available layout managers and how to use them, see the JDC article Exploring the AWT Layout Managers. The call to the getContentPane method of the JFrame class is for adding the ... 1 of 3 21-04-2000 17: 30 Essentials of the Java( TM) Programming Language, Part 1 http://developer .java. sun.com/developer ining /Programming/ BasicJava1/index.html Training Index Java TM Programming...

Ngày tải lên: 06/08/2013, 17:39

... super.clone , set all of the fields in the resulting object to their virgin state, and then call higher-level methods to regenerate the state of the object. In the case of our Hashtable example, the ... reference cells, not the objects themselves). The elements in the active portion of the array (as defined earlier) are allocated, and those in the remainder of the array are free. The garbage collector ... the absence of well-designed APIs for the components of the system. No language is perfect, but some are excellent. I have found the Java programming language and its libraries to be immensely...

Ngày tải lên: 12/12/2013, 21:16