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






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






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






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






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






6. 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.






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






8. Creates a subclass






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






10. Creates an object from an existing class.






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






12. Tests the truth of a condition that the programmer believes is true.






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






14. 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.






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






16. Introduces an interface which is like a class but less specific.






17. 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.






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






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






20. A standard programming interface for writing Java native methods and embedding the JVM into native applications. The primary goal is binary compatibility of native method libraries across all JVM implementations on a given platform.






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






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






23. 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.






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






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






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






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






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






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






32. Used to generate HTML






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






34. A self-reference






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






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






37. 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






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






39. 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.






40. 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()






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






42. Basic code block of a JSP page






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






44. 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).






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






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






47. Jumps out of a loop or switch.






48. 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






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






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