Test your basic knowledge |

Java Programming Basics

Subject : it-skills
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Tells the computer to follow one of many possible paths of execution (one of many possible cases) depending on the value of an expression.






2. Creates an object from an existing class.






3. Similar to the include Directive but can pass information to the included resource






4. Limits the computer's ability to represent extra large or extra small numbers when the computer does intermediate calculations on float and double values.






5. A CORBA standard for building server-side applications that are portable across heterogeneous ORBs.






6. Introduces statements that are executed when something interrupts the flow of execution in a try clause.






7. This separates the content presentation (View) from the underlying business operations/content generation (Model) using infrastructure/controller Servlet (Controller) which exists between the client browser and the JSP/Servlet-generated pages. Contro






8. Indicates that a variable or method can be used only within a certain class.






9. Allows us to invoke more than one servlet in sequence when the URL is opened with a common servlet alias.






10. Imposes strict rules on the use of a variable by more than one thread at a time.






11. A subset of the Java Development Kit (JDK) for end-users and developers who want to redistribute the runtime environment alone. The Java runtime environment consists of the Java virtual machine1 - the Java core classes and supporting files.






12. Indicates that a value is either true or false in the Java sense.






13. A definition of the interfaces that permit CORBA objects to participate in transactions.






14. A set of Java APIs that may be incorporated an optional package for any Java 2 Platform Edition. The Jini APIs enable transparent networking of devices and services and eliminates the need for system or network administration intervention by a user.






15. Type of Java program (as opposed to a stand-alone program) which is embedded in a web page (requested from a server) and run on a client-side browser






16. Common Object Request Broker Architecture. A language independent distributed object model specified by the Object Management Group (OMG).






17. Indicates that the details of a class or a method or an interface are given elsewhere in the code.






18. Evaluates interior code to a String and feeds it to the implicit "out" print writer (JspWriter) - done at time of JSP page request






19. Creates a subclass






20. Ends execution of a method and possibly returns a value to the calling code.






21. A special Java servlet-aware web server process.






22. A Web scripting language that is used in both browsers and Web servers. Like all scripting languages it is used primarily to tie other components together or to accept user input.






23. A platform-independent file format that aggregates many files into one. Multiple applets written in the Java programming language and their requisite components (.class files & images & sounds and other resource files) can be bundled in a JAR file an






24. A Java class that can be loaded into and run dynamically in a Servlet container on a web server; interact with web clients via a request-response model based on HTTP.






25. A set of Java APIs that provide CORBA (Common Object Request Broker Architecture) interoperability and connectivity capabilities for the J2EE platform. These capabilities enable J2EE applications to invoke operations on remote network services using






26. A protocol used for communication between CORBA object request brokers.






27. A distributed object model for Java program to Java program in which the methods of remote objects written in the Java programming language can be invoked from other Java virtual machines1 - possibly on different hosts.






28. Indicates that if and when an object is serialized a variable's value doesn't need to be stored.






29. Indicates that a value is a 32-bit number with one or more digits after the decimal point.






30. Run-once code blocks which run once at beginning of page load for initialization tasks - can appear anywhere in .jsp page itself - useful for overload JspInit() and JspDestroy()






31. An opensource Java Application Server






32. The output of one servlet act as a input to another servlet.






33. Causes the computer to repeat some statements over and over again (for instance as long as the computer keeps getting unacceptable results).






34. Jumps out of a loop or switch.






35. Used to generate HTML






36. Indicates that a variable or method can be used in subclasses from another package.






37. A software development environment for writing applets and application in Java .






38. Creates a new exception object and indicates that an exceptional situation (usually something unwanted) has occurred.






39. Refers to the superclass of the code in which the word super appears.






40. In the Java programming language specification - describes a floating point number that holds 64 bits of data. See also single precision.






41. The core framework supports clocks for synchronizing between different media (e.g. audio and video output). The standard extension framework allows users to do full audio and video streaming.






42. Servlet is: loaded by servlet container when 1st requested; is then forwarded the user's request; processes the user's request; returns the response back to the servlet container. Servlet container sends this response back to the user. Servlet stays






43. A test suite - a set of tools and other requirements used to certify a Java platform implementation conformant both to the applicable Java platform specifications and to Java Software reference implementations.






44. Used to terminate the execution of the current JSP page and switch control to another resource






45. A tool for checking compliance of applications and applets to a specification.






46. Indicates that a value is a 64-bit whole number.






47. Enables the programmer to use code that was written in another language (one of those awful languages other than Java).






48. Includes a new tag library into page - allows use of tags in page






49. Enables the programmer to abbreviate the names of classes defined in a package.






50. Indicates that a value is a 16-bit whole number.