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. Introduces statements that are watched (during runtime) for things that can go wrong.






2. Keeps two threads from interfering with one another.






3. Indicates that a method doesn't return a value.






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






5. 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






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






7. Useful only for small sites






8. Basic code block of a JSP page






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






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






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






12. An industry standard for database-independent connectivity between the Java platform and a wide range of databases. The JDBC provides a call-level API for SQL-based database access.






13. An opensource Java Application Server






14. 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






15. 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






16. Indicates that a method or constructor may pass the buck when an exception is thrown.






17. Repeats some statements over and over again (as long as a condition is still true).






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






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






20. Tells the computer to follow one of many possible paths of execution (one of many possible cases) depending on the value of an expression.






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






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






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






24. 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






25. 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.






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






28. 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.






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






30. Indicates that a value is an 8-bit whole number.






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






32. Creates a subclass






33. 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.






34. 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 const variable.






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






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






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






38. A tool for tracking and managing source file changes - written in Java.






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






40. A software development environment for writing applets and applications in the Java programming language. Technically - the JDK is the correct name for all versions of the Java platform from 1.0 to 1.1.x.






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






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






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






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






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






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






47. A set of APIs that support the integration of audio and video clips & 2D fonts & graphics and images as well as 3D models and telephony.






48. 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.






49. ______ 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






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







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