PDF - Complete Book (3.38 MB)
... meaning that once changed, every caller experiencing that element type is exposed to the same value. It is highly recommended to use only static final member variables, store any persistent data in the session (which the API provides access to), and keep all other variables local to the execution me ...
... meaning that once changed, every caller experiencing that element type is exposed to the same value. It is highly recommended to use only static final member variables, store any persistent data in the session (which the API provides access to), and keep all other variables local to the execution me ...
Threads Threads, User vs. Kernel Threads, Java Threads, Threads
... The problem with asynchronous cancellation: may lead to an inconsistent state or to a synchronization problem if the thread was in the middle of “something important” Absolutely terrible bugs lurking in the shadows ...
... The problem with asynchronous cancellation: may lead to an inconsistent state or to a synchronization problem if the thread was in the middle of “something important” Absolutely terrible bugs lurking in the shadows ...
Threading A thread is a thread of execution in a program. The Java
... example, that streaming audio application must simultaneously read the digital audio off the network, decompress it, manage playback, and update its display. Even the word processor should always be ready to respond to keyboard and mouse events, no matter how busy it is reformatting text or updating ...
... example, that streaming audio application must simultaneously read the digital audio off the network, decompress it, manage playback, and update its display. Even the word processor should always be ready to respond to keyboard and mouse events, no matter how busy it is reformatting text or updating ...
GroveX10Overview - The X10 Programming Language
... but the programming model problem is highly similar © 2009 IBM Corporation ...
... but the programming model problem is highly similar © 2009 IBM Corporation ...
Java Threads (a review, and some new things)
... Both threads are running The main thread prints ‘.’ 500 times to the screen " The new thread prints ‘#’ 500 times to the screen and exits ...
... Both threads are running The main thread prints ‘.’ 500 times to the screen " The new thread prints ‘#’ 500 times to the screen and exits ...
Thread
... Let C denote the union of critical regions ci for resource R. T is the set of threads tj having access to R. The mutual exclusive access to R is satisfied if at any time instance only at most one tj T executes ck C. ...
... Let C denote the union of critical regions ci for resource R. T is the set of threads tj having access to R. The mutual exclusive access to R is satisfied if at any time instance only at most one tj T executes ck C. ...
Concurrent Programming in Java
... • Concurrent programming is the creation of more than one flow of control, functioning simultaneously, each with the ability to communicate with other operating flows. • This can be implemented in two ways: – With a single program that contains multiple threads which share the same variables and obj ...
... • Concurrent programming is the creation of more than one flow of control, functioning simultaneously, each with the ability to communicate with other operating flows. • This can be implemented in two ways: – With a single program that contains multiple threads which share the same variables and obj ...
Lecture Notes
... – After the Web container loads and instantiates the servlet class and before it delivers requests from clients, the Web container initializes the servlet. – You can customize this process to allow the servlet to ...
... – After the Web container loads and instantiates the servlet class and before it delivers requests from clients, the Web container initializes the servlet. – You can customize this process to allow the servlet to ...
Recursion
... Recursion is a math and programming tool Technically, not necessary Wasn’t available in early programming languages ...
... Recursion is a math and programming tool Technically, not necessary Wasn’t available in early programming languages ...
LISP:Power and Elegance in ONE
... and I said to him, ho, ho, you’re confusing theory with practice, this eval is intended for reading, not for computing, But he went ahead and did it. That is, he compiled the eval in my paper into [IBM] 704 machine code, fixing bugs, and then advertised this as a Lisp interpreter, which it certainly ...
... and I said to him, ho, ho, you’re confusing theory with practice, this eval is intended for reading, not for computing, But he went ahead and did it. That is, he compiled the eval in my paper into [IBM] 704 machine code, fixing bugs, and then advertised this as a Lisp interpreter, which it certainly ...
Java Threads - Users.drew.edu
... • Most OSs support Inter Process Communication (IPC) resources – Pipes – Sockets ...
... • Most OSs support Inter Process Communication (IPC) resources – Pipes – Sockets ...
Programming the Web Server Robert M. Dondero, Ph.D. Princeton University 1
... Accept "PHPSESSID=key" cookie from browser, or create "PHPSESSID=key" cookie Extract key from cookie Use key to populate $_SESSION with saved "name=value" state pairs Allow PHP code to use/modify $_SESSION Pass "PHPSESSID=key" cookie to browser ...
... Accept "PHPSESSID=key" cookie from browser, or create "PHPSESSID=key" cookie Extract key from cookie Use key to populate $_SESSION with saved "name=value" state pairs Allow PHP code to use/modify $_SESSION Pass "PHPSESSID=key" cookie to browser ...
4on1 - FSU Computer Science
... Problems with arithmetic (e.g. overflow) Hardware and software interrupts (e.g. hitting the break key) Programming language implementation of exception handling can make defensive programming easier An exception is a special unexpected error condition at run time Built-in exceptions may be detected ...
... Problems with arithmetic (e.g. overflow) Hardware and software interrupts (e.g. hitting the break key) Programming language implementation of exception handling can make defensive programming easier An exception is a special unexpected error condition at run time Built-in exceptions may be detected ...
Lecture 13 Introduction to High-Level Programming (S&G, §§7.1–7.6)
... (slide adapted < K. Lambert) ...
... (slide adapted < K. Lambert) ...
9. Exception Handling - FSU Computer Science
... Problems with arithmetic (e.g. overflow) Hardware and software interrupts (e.g. hitting the break key) Programming language implementation of exception handling can make defensive programming easier An exception is a special unexpected error condition at run time Built-in exceptions may be detected ...
... Problems with arithmetic (e.g. overflow) Hardware and software interrupts (e.g. hitting the break key) Programming language implementation of exception handling can make defensive programming easier An exception is a special unexpected error condition at run time Built-in exceptions may be detected ...
Chapter 14
... because the second catch clause can never be used. The code contained in the (optional) finally clause is executed whether an exception is thrown in the try construct or not. This is useful for “cleanup” code (closing files, other freeing of resources, ...) that must always be executed. Binding of e ...
... because the second catch clause can never be used. The code contained in the (optional) finally clause is executed whether an exception is thrown in the try construct or not. This is useful for “cleanup” code (closing files, other freeing of resources, ...) that must always be executed. Binding of e ...
9 Embedding SQL into Programming languages 9.1 Introduction
... DBS-independent Application development independent from DBS (as opposed to Embedded SQL precompiler approach, see below) Easy to connect to multiple DB • Microsoft implementation ODBC (= Open Database Connectivity) de facto standard, available not only for MS products ...
... DBS-independent Application development independent from DBS (as opposed to Embedded SQL precompiler approach, see below) Easy to connect to multiple DB • Microsoft implementation ODBC (= Open Database Connectivity) de facto standard, available not only for MS products ...
Introduction to JSON (JavaScript Object Notation)
... • In this example, a JSON JavaScript object is created containing a single member "bindings", which contains an array containing three objects, each containing "ircEvent", "method", and "regex" members • Members can be retrieved using dot or subscript ...
... • In this example, a JSON JavaScript object is created containing a single member "bindings", which contains an array containing three objects, each containing "ircEvent", "method", and "regex" members • Members can be retrieved using dot or subscript ...
“while” loop
... Repetition - Cont. • The number of repetitions is controlled by changing the limit value for the loop counter - “i” in the example on the previous slide. • That example had i increasing by one each time. The loop counter was being incremented by one. • It could have been incremented by some other v ...
... Repetition - Cont. • The number of repetitions is controlled by changing the limit value for the loop counter - “i” in the example on the previous slide. • That example had i increasing by one each time. The loop counter was being incremented by one. • It could have been incremented by some other v ...
Android
... - Therefore sometimes come with compilers - Usually consist of several separate but integrated libaries… - …That can often be selected for use or not - Sometimes come with support programs - Sometimes provide customized IDE’s or IDE plugins - Usually run on top of other frameworks or external ...
... - Therefore sometimes come with compilers - Usually consist of several separate but integrated libaries… - …That can often be selected for use or not - Sometimes come with support programs - Sometimes provide customized IDE’s or IDE plugins - Usually run on top of other frameworks or external ...
Programming with Java
... When a project is running and the user selects an item from the list, you can retrieve the index number of the selected item. ...
... When a project is running and the user selects an item from the list, you can retrieve the index number of the selected item. ...
No Slide Title
... JList list = new JList(items); ListSelectionModel sModel = list.getSelectionModel(); sModel.addListSelectionListener (new ListSelectionListener() { public void valueChanged(ListSelectionEvent e) { // get change information directly // // from the event instance... if (!e.getValueIsAdjusting()) { Sys ...
... JList list = new JList(items); ListSelectionModel sModel = list.getSelectionModel(); sModel.addListSelectionListener (new ListSelectionListener() { public void valueChanged(ListSelectionEvent e) { // get change information directly // // from the event instance... if (!e.getValueIsAdjusting()) { Sys ...
Java (programming language)
Java is a general-purpose computer programming language that is concurrent, class-based, object-oriented, and specifically designed to have as few implementation dependencies as possible. It is intended to let application developers ""write once, run anywhere"" (WORA), meaning that compiled Java code can run on all platforms that support Java without the need for recompilation. Java applications are typically compiled to bytecode that can run on any Java virtual machine (JVM) regardless of computer architecture. As of 2015, Java is one of the most popular programming languages in use, particularly for client-server web applications, with a reported 9 million developers. Java was originally developed by James Gosling at Sun Microsystems (which has since been acquired by Oracle Corporation) and released in 1995 as a core component of Sun Microsystems' Java platform. The language derives much of its syntax from C and C++, but it has fewer low-level facilities than either of them.The original and reference implementation Java compilers, virtual machines, and class libraries were originally released by Sun under proprietary licences. As of May 2007, in compliance with the specifications of the Java Community Process, Sun relicensed most of its Java technologies under the GNU General Public License. Others have also developed alternative implementations of these Sun technologies, such as the GNU Compiler for Java (bytecode compiler), GNU Classpath (standard libraries), and IcedTea-Web (browser plugin for applets).The latest version is Java 8, the only supported version, currently.