• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Chapter 1
Chapter 1

... • Portable means that a program may be written on one type of computer and then run on a wide variety of computers, with little or no modification. • Java byte code runs on the JVM and not on any particular CPU; therefore, compiled Java programs are highly portable. • JVMs exist on many platforms: • ...
Exceptions
Exceptions

... On the System i, the idea of sending messages from one program to another is a long-established part of the programming model. All operating system APIs and functions send messages when something unexpected happens—something “exceptional.” These are sent both explicitly when you code a call to these ...
Window Interfaces Using Swing
Window Interfaces Using Swing

... JAVA: An Introduction to Problem Solving & Programming, 7th Ed. By Walter Savitch ISBN 0133862119 © 2015 Pearson Education, Inc., Upper Saddle River, NJ. All Rights Reserved ...
Chapter 13 - Window Interfaces Using Swing
Chapter 13 - Window Interfaces Using Swing

... JAVA: An Introduction to Problem Solving & Programming, 6th Ed. By Walter Savitch ISBN 0132162709 © 2012 Pearson Education, Inc., Upper Saddle River, NJ. All Rights Reserved ...
Transaction-oriented library for persistent objects with applications
Transaction-oriented library for persistent objects with applications

... • Support for persistent arrays through qualifiers int[] persistent x = new int[4] persistent; • pobj integrated with Titanium’s Boehm-Weiser garbage collector ...
File - Computer Networks & Information Security
File - Computer Networks & Information Security

... a) Minimum resource requirements to run a J2ME application First the device must have a minimum of 96 × 54 pixel display that can handle bitmapped graphics and have a way for users to input information, such as a keypad, keyboard, or touch screen. At least 128 KB of nonvolatile memory is necessary t ...
Research Question SWUM Overview Motivation Preliminary
Research Question SWUM Overview Motivation Preliminary

... o C++ also has destructors, which have a similar signature as constructors. ...
Ch08
Ch08

... An exception is caught in a catch block When a method might throw an exception but does not have a catch block to catch it, usually the exception class must be listed in the throws-clause for the method A try block may be followed by more than one catch block » more than one catch block may be capab ...
int - Radford University
int - Radford University

... • History of C++… • “C++ was designed to provide Simula’s facilities for program organization together with C’s efficiency and flexibility for systems programming. “ • Write coding in assembly, C, C++…. ...
for statement
for statement

... • If count currently contains 45, then the statement total = count++; assigns 45 to total and 46 to count • If count currently contains 45, then the statement total = ++count; assigns the value 46 to both total and count ...
COS260Day7 - Ecom and COS classes
COS260Day7 - Ecom and COS classes

... • Problems with declaring variables to be a certain type and using them as another type. examples declare aVar as double and then using nextInt() • Names of identifiers should always start with lower case letter • Making sure output is exactly as specified • Commenting code after compiling code • Le ...
Methodologies - Columbia College
Methodologies - Columbia College

... • The Leader communicates the vision of the system • The leader does not plan, schedule or budget • The leader establishes an environment based on collaboration, shared information, and mutual trust • The leader ensures that a product is shipped. Bernd Bruegge & Allen H. Dutoit ...
L39_Methodologies_XP_and_Scrum_ch16_lect2
L39_Methodologies_XP_and_Scrum_ch16_lect2

... • The Leader communicates the vision of the system • The leader does not plan, schedule or budget • The leader establishes an environment based on collaboration, shared information, and mutual trust • The leader ensures that a product is shipped. Bernd Bruegge & Allen H. Dutoit ...
Teaching Assistant`s TinyOS Tutorial
Teaching Assistant`s TinyOS Tutorial

... • Using dmesg to check the device name • If permission denies: chmod 777 /dev/ttyS0 6. Blink is running, if red, blue, and gree LEDs are running alternatively. Warning: switch both the programming board and mote off while programming the mote from the computer ...
Chapter 19 Java Data Structures
Chapter 19 Java Data Structures

... must implement the hashCode method to avoid too many such cases. Additionally, it is required that invoking the hasCode method multiple times returns the same integer during one execution of the program Y.Daniel Liang Introduction to Java Programming Sixth Edition and Cay Horstmann Object-Oriented D ...
Object Oriented Programming
Object Oriented Programming

... A quick diversion from OOP here! At this point you might think it doesn't matter whether you use C++ or Java, they both implement object oriented technology. Well, C++ can be used to design programs without implementing any objects; C++ can be used as an extended C. In Java, you must implement any n ...
Chapter 3 Control Methods
Chapter 3 Control Methods

... When two operators with the same precedence are evaluated, the associativity of the operators determines the order of evaluation. All binary operators except assignment operators are leftassociative. a – b + c – d is equivalent to ((a – b) + c) – d Assignment operators are right-associative. Therefo ...
Struts: A Scalable MVC Framework for Web Applications
Struts: A Scalable MVC Framework for Web Applications

... Web sites: JabaDot, LHBooks, Toastmasters Ian Darwin, http://www.darwinsys.com/ ...
Programming Exam 2
Programming Exam 2

... It is simply a list of entries, where each is an object from the Entry class described at the bottom of this page, but when you look something up (find) or update an existing entry (update), that entry goes to the top of the list. New things (add) always go to the top. You may write your PList imple ...
Tree-Structured Indexes
Tree-Structured Indexes

... Introduction to Compilers ...
Just-in-time compilation for SQL query processing
Just-in-time compilation for SQL query processing

... for a high-level programming language [7, 8]. Though this alleviated the portability problem, compilation was still a bottleneck and again the approach was abandoned due to its high performance penalty and therefore limited applicability. The next effort was to precompile parts of the query pipeline ...
Javascript
Javascript

... JavaScript and applets are available on the Net as fully functioning items. Download and use them on your page (provided you are given permission). ...
Ebook Programming tools developers
Ebook Programming tools developers

... T is an IDE created by JetBrains. It has an incredible reputation within the Python developer community. Some even describe it as the best IDE for Python. This is an integrated development environment with hundreds of functions, which can turn the tool into a tedious environment, but it is certainly ...
Threads in Java
Threads in Java

...  Every object has a monitor and a monitor lock  Monitor ensures that its object’s lock is held by a maximum of one thread at a time.  If a thread holds a lock, other threads trying to access the same object will be blocked until the thread is released. ...
Syllabus Management System
Syllabus Management System

... Faculty – Can edit syllabi to which he/she is assigned, view and search Student and Public – Can view and search for syllabi, see limited syllabi data. Students may or may not have addition access to syllabi information ...
< 1 2 3 4 5 6 7 8 9 ... 29 >

Java performance

In software development, the Java programming language was historically considered slow because compiled Java programs run on the Java Virtual Machine rather than directly on the computer's processor like C and C++ programs do; however, in newer Java versions the execution performance has been optimized significantly mainly thanks to the introduction of just-in-time compilation. Java performance is a matter of concern because lots of business software has been written in Java after the language quickly became popular in the late 1990s and early 2000s. Concerns over its performance led to the development of specialized hardware able to run Java directly, dubbed Java processors. The performance of a compiled Java program depends on how optimally its particular tasks are managed by the host Java Virtual Machine (JVM), and how well the JVM takes advantage of the features of the hardware and OS in doing so. Thus, any Java performance test or comparison has to always report the version, vendor, OS and hardware architecture of the used JVM. In a similar manner, the performance of the equivalent natively compiled program will depend on the quality of its generated machine code, so the test or comparison also has to report the name, version and vendor of the used compiler, and its activated optimization directives.Historically, the execution speed of Java programs improved significantly due to the introduction of Just-In Time compilation (JIT) (in 1997/1998 for Java 1.1), the addition of language features supporting better code analysis, and optimizations in the JVM itself (such as HotSpot becoming the default for Sun's JVM in 2000). Hardware execution of Java bytecode, such as that offered by ARM's Jazelle, can also offer significant performance improvements.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report