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. A library than enables CORBA objects to locate and communicate with one another.






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






3. Introduces a path of execution to take when no case is a match in a switch statement.






4. Keeps two threads from interfering with one another.






5. Indicates that a variable or method belongs to a class rather than to any object created from the class.






6. A lock that can be counted - i.e. how many times a resouce has been accessed and locked






7. Forces the abrupt end of the current loop iteration and begins another iteration.






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






9. An extension that adds graphical user interface class libraries to the Abstract Windowing Toolkit (AWT).






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






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






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






13. Tests to see whether a condition is true. If it's true the computer executes certain statements; otherwise the computer executes other statements.






14. Creates a newly defined type






15. Introduces the last will and testament of the statements in a try clause.






16. A portable platform-independent reusable component model. A component that conforms to this model is called a bean.






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






18. 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.






19. Tests to see whether a certain object comes from a certain class.






20. A principal native to the operating system on which the Java platform is executing.






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






22. A description of the structure and properties of a class of XML files.






23. Introduces statements that are executed when the condition in an if statement isn't true.






24. A set of APIs that assists with the interfacing to multiple naming and directory services.






25. You can't use this word in a Java program. The word has no meaning. Because it's a keyword you can't create a goto variable.






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






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






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






29. 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.






30. 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






31. CRUD: Create - Retrieve - ________ - Delete






32. Puts the code into a package






33. 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






34. ______ uses HTML-like tags in a "*.jsp" web-page on a web server linked to from the client's web-browser as short-hand to render Java Servlet code in a Java .class file by the Servlet/JSP container (done by the "page-compiler" Servlet) running on the






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






36. Indicates that a value is a character (a single letter or digit or punctuation symbol and so on) stored in 16 bits of memory.






37. Indicates that a value is a 64-bit number with one or more digits after the decimal point.






38. Gets the computer to repeat some statements over and over again (for instance a certain number of times).






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






40. 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.






41. A tree of objects with interfaces for traversing the tree and writing an XML version of it as defined by the W3C specification.






42. Indicates that a variable's value cannot be changed - that a class's functionality cannot be extended or that a method cannot be overridden.






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






44. Indicates that a variable or class or method can be used by any other Java code.






45. A technology that provides distributed persistence and data exchange mechanisms for code in Java.






46. Jumps out of a loop or switch.






47. Indicates that a value is a 32-bit whole number.






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






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






50. A self-reference