Executing a java program - Study guides, Class notes & Summaries

PHP Test 1. What is the best practice for running MySQL queries in PHP? Consider the risk of SQL injection. Answers: 1. Use mysql_query() and variables: for example: $input = $_POST[‘user_input’]; mysql_query(“INSERT INTO table (column) VALUES (‘” . $input . “‘)”); 2. Use PDO prepared statements and parameterized queries: for example: $input= $_POST[“user-input”] $stmt = $pdo- >prepare(‘INSERT INTO table (column) VALUES (“:input”); $stmt- >execute(array(...

What is the motivation for writing multithreaded Java code? correct answers Capture logical structure of problem, better utilize hardware resources What are possible states for Java threads? correct answers New, Runnable, Running, Blocked, Dead What is the effect of invoking the start( ) method of the Thread class? correct answers Tells JVM thread is now Runnable What is the effect of invoking the join( ) method of the Thread class? correct answers Tells JVM to wait until thread is Dead...

WGU C182 Objective Assessment OA What rights does the End User License Agreement for proprietary software typically give to purchasers? a. The freedom to share the software with others. b. The right to modify the software. c. Ownership rights to the software. d. The right to use the software. (Module: Software Licensing) (correct answers)d. The right to use the software. Which of the following statements is true of computer networks? a. Computer Networks...

WGU C182 Objective Assessment OA What rights does the End User License Agreement for proprietary software typically give to purchasers? a. The freedom to share the software with others. b. The right to modify the software. c. Ownership rights to the software. d. The right to use the software. (Module: Software Licensing) (correct answers)d. The right to use the software. Which of the following statements is true of computer networks? a. Computer Networks...

A common technique for writing an event listener class is to write it as a private inner class inside the class that creates the GUI. True/False - True A GUI program automatically stops executing when the end of the main method is reached. True/False - False All operating systems offer the same set of GUI components. True/False - False Check boxes may be grouped in a ButtonGroup, like radio buttons are. True/False - True Some of the common GUI components are buttons, labels, text field...

WGU C182 Objective Assessment OA What rights does the End User License Agreement for proprietary software typically give to purchasers? a. The freedom to share the software with others. b. The right to modify the software. c. Ownership rights to the software. d. The right to use the software. (Module: Software Licensing) (correct answers)d. The right to use the software. Which of the following statements is true of computer networks? a. Computer Networks a...

CSCI-2467 Java 1 Exam Questions With Correct Answers What are hardware and software? - answerone comprises the visible physical elements of the computer while the other provides the invisible instructions that control the first and make it perform specific tasks. List the five major hardware components of a computer system. - answerCPU, memory, storage devices, input & output devices, communication devices. What does CPU stand for and what unit is used to measure CPU speed? - answerCentra...

Computer - Answer- multipurpose device that accepts input, processes data, stores data, and produces output, all according to a series of stored instructions Input - Answer- whatever is typed, submitted, or transmitted to a computer Output - Answer- the result produced by a computer How do computers process data? - Answer- by performing calculations, modifying documents and pictures, drawing graphs, and sorting lists of words or numbers Processing is handled by the computers_________...

Nursing Informatics CH 1-4 Exam 221 Questions with Verified Answers The nurse understands that nursing informatics is recognized as a specialty area of practice by which statement? 1. Research priorities for nursing informatics include the development of a standard nursing language and the development of databases for clinical information. 2. A formal educational program at the master's level must be completed before a nurse is eligible to sit for the credentialing examination. 3. As a di...

Artificial Intelligence -->The ability of computers to solve problems and perform tasks that were once thought to be uniquely human. Browser -->-Software that allows users to find and read encoded documents in a form suitable for display -Software used to "Surf the Web", A program that allows the user to find and view pages on the world wide web. Categories of Computers -->Ordered from least to most powerful: -Microcomputers -Minicomputers -Mainframe computers -Supercomputers ...