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






2. Two Servlet API packages: javax.servlet.* ___________






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






4. An opensource Java Application Server






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






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






7. Includes a file in the page






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






9. A software "execution engine" that safely and compatibly executes the byte codes in Java class files on a microprocessor (whether in a computer or in another electronic device).






10. 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






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






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






13. 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.






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






15. Introduces one of several possible paths of execution in a switch statement.






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






17. 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.






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






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






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






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






22. A class that wraps primitives - Integer or Boolean...






23. Jumps out of a loop or switch.






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






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






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






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






28. 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






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






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






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






33. 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.






34. Useful only for small sites






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






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






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






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






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






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






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






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






44. ______ 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






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






46. 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()






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






48. 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.






49. A self-reference






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