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Test your basic knowledge |
Java Programming Basics
Start Test
Study First
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. Creates a subclass
final
extends
JAR (Java Archive)
class
2. A description of the structure and properties of a class of XML files.
return
DTD (Document Type Definition)
Java Media APIs
strictfp
3. 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.
ORB (Object Request Broker)
Servlet Chaining
Java Runtime Environment (JRE)
abstract
4. A software development environment for writing applets and application in Java .
public
ORB (Object Request Broker)
Expressions
JDK (Java Development Kit)
5. Tests to see whether a certain object comes from a certain class.
extends
instanceof
private
default
6. Used to generate HTML
short
javax.servlet.http.*
jsp:plugin (uses jsp:params and jsp:fallback)
Java Database Connectivity (JDBC)
7. Indicates that a value is a 32-bit whole number.
int
Page Directive element
Expressions
IIOP (Internet Inter-ORB Protocol)
8. Includes a file in the page
Include Directive element
Servlet container
Java Runtime Environment (JRE)
super
9. Jumps out of a loop or switch.
this
for
jsp:include Action element (with jsp:param)
break
10. Indicates that a value is a 16-bit whole number.
JDK (Java Development Kit)
assert
const
short
11. An opensource Java Application Server
JBossn
JavaBeans
Java Development Kit (JDK)
jsp:plugin (uses jsp:params and jsp:fallback)
12. 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
default
JAR (Java Archive)
try
public
13. A tree of objects with interfaces for traversing the tree and writing an XML version of it as defined by the W3C specification.
jsp:plugin (uses jsp:params and jsp:fallback)
DOM (Document Object Model)
try
return
14. ______ 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
do
JSP
CORBA
switch
15. Indicates that a variable or method can be used in subclasses from another package.
extends
throw
protected
Jini Technology
16. Allows us to invoke more than one servlet in sequence when the URL is opened with a common servlet alias.
Page Directive element
import
volatile
Servlet Aliasing
17. Similar to the include Directive but can pass information to the included resource
jsp:include Action element (with jsp:param)
Servlet Aliasing
JavaSafe
Java Media Framework
18. 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()
interface
Declarations
jsp:forware Action element (with jsp:param)
do
19. Introduces an interface which is like a class but less specific.
Expressions
interface
double precision
JavaSafe
20. A definition of the interfaces that permit CORBA objects to participate in transactions.
new
POA (Portable Object Adapter)
jsp:plugin (uses jsp:params and jsp:fallback)
OTS (Object Transaction Service)
21. Indicates that a variable or class or method can be used by any other Java code.
Java Development Kit (JDK)
instanceof
CORBA
public
22. Indicates that a variable or method can be used only within a certain class.
private
final
catch
JBossn
23. A self-reference
Expressions
ORB (Object Request Broker)
this
Servlet workings
24. Indicates that a value is a character (a single letter or digit or punctuation symbol and so on) stored in 16 bits of memory.
char
Java Compatibility Kit (JCK)
Java virtual machine
long
25. Includes a new tag library into page - allows use of tags in page
Tag Library Directive element
ORB (Object Request Broker)
native
throws
26. 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.
Jini Technology
Servlet Aliasing
double precision
Java Remote Method Invocation (RMI)
27. Causes the computer to repeat some statements over and over again (for instance as long as the computer keeps getting unacceptable results).
class
Update
this
do
28. Tells the computer to follow one of many possible paths of execution (one of many possible cases) depending on the value of an expression.
switch
continue
Semaphore
JavaSpaces
29. A portable platform-independent reusable component model. A component that conforms to this model is called a bean.
JavaBeans
void
extends
jsp:forware Action element (with jsp:param)
30. 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.
Java Media Framework
Java Foundation Classes (JFC)
MVC Architecture
Java Applet Definition
31. 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.
OS principal
Java Media APIs
float
Semaphore
32. Limits the computer's ability to represent extra large or extra small numbers when the computer does intermediate calculations on float and double values.
new
byte
static
strictfp
33. Introduces statements that are watched (during runtime) for things that can go wrong.
OTS (Object Transaction Service)
double
try
Semaphore
34. 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.
Tag Library Directive element
Page-centric architecture
import
Java Database Connectivity (JDBC)
35. Indicates that a value is a 64-bit number with one or more digits after the decimal point.
double
Java Naming and Directory Interface (JNDI)
Scriptlets
char
36. 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.
Java Compatibility Kit (JCK)
Java Applet Definition
POA (Portable Object Adapter)
new
37. The output of one servlet act as a input to another servlet.
Servlet
throw
Servlet Chaining
do
38. 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).
Java Platform
default
goto
Semaphore
39. Keeps two threads from interfering with one another.
synchronized
break
new
Java Compatibility Kit (JCK)
40. A tool for tracking and managing source file changes - written in Java.
JavaSafe
DTD (Document Type Definition)
default
instanceof
41. Gets the computer to repeat some statements over and over again (for instance a certain number of times).
for
continue
Java Naming and Directory Interface (JNDI)
Java Remote Method Invocation (RMI)
42. An extension that adds graphical user interface class libraries to the Abstract Windowing Toolkit (AWT).
Java Foundation Classes (JFC)
JavaSpaces
Java Database Connectivity (JDBC)
switch
43. Basic code block of a JSP page
Scriptlets
JavaSpaces
JavaCheck
synchronized
44. A protocol used for communication between CORBA object request brokers.
JavaBeans
JavaCheck
IIOP (Internet Inter-ORB Protocol)
synchronized
45. A lock that can be counted - i.e. how many times a resouce has been accessed and locked
Semaphore
Include Directive element
Servlet Chaining
Page-centric architecture
46. Introduces the last will and testament of the statements in a try clause.
POA (Portable Object Adapter)
catch
CORBA
finally
47. 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.
class
Servlet container
Servlet
while
48. 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.
JavaSafe
Java Development Kit (JDK)
package
JSP
49. Enables the programmer to use code that was written in another language (one of those awful languages other than Java).
Page-centric architecture
native
OS principal
transient
50. A set of APIs that assists with the interfacing to multiple naming and directory services.
Java Naming and Directory Interface (JNDI)
JavaSpaces
goto
case