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. 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.






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






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






4. Basic code block of a JSP page






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






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






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






8. Puts the code into a package






9. 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.






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






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






12. 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).






13. Introduces a class






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






15. Used to generate HTML






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






17. 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.






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






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






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






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






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






23. 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






24. 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






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






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






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






28. 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.






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






30. 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.






31. Sets attributes and properties specific to the current JSP page






32. 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






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






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






35. ______ 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






36. _______ separates Java code/functionality from page design and use of tags in JSP and allows for re-use of beans






37. 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.






38. Reuses the functionality from a previously defined interface.






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






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






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






43. 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.






44. Creates a subclass






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






46. An opensource Java Application Server






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






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






49. 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()






50. 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.