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. 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()






2. 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.






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






4. Introduces a class






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






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






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






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






9. 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.






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






11. 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






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






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






14. 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.






15. 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.






16. Creates a subclass






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






18. 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.






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






20. 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.






21. Basic code block of a JSP page






22. 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






23. Creates a newly defined type






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






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






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






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






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






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






30. 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.






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






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






33. Reuses the functionality from a previously defined interface.






34. Consists of class libraries - a Java virtual machine (JVM) and class loader (which comprise the runtime environment) and a compiler - debugger and other tools (which comprise the development kit).






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






36. 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






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






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






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






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






41. Used to generate HTML






42. 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.






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






44. 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.






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






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






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






48. ______ 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






49. Creates an object from an existing class.






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