000 - Introduction to the Java Technology

Question 1

Which ten buzzwords can be used to describe the Java programming language?

Answer 1

Simple
Object oriented
Distributed
Multithreaded
Dynamic
Architecture neutral
Portable
High performance
Robust
Secure

Question 2

Java is __________ so it can be programmed without extensive programmer training while being attuned to current software practices and programmers can be productive from the very beginning.

Answer 2

simple

Question 3

Java is _________, so that current developers can easily learn the Java programming language

Answer 3

familiar

Question 4

Java is _________, to take advantage of modern software development methodologies and to fit into distributed client-server applications

Answer 4

object oriented

Question 5

Java is _________, for high performance in applications that need to perform multiple concurrent activities, such as multimedia;

Answer 5

multithreaded

Question 6

Java is _________, for maximum portability and dynamic capabilities.

Answer 6

interpreted

Question 7

Java is _________ because it provides extensive compile-time checking, followed by run-time checking.

The memory management model is extremely simple: objects are created with a new operator.

There are no explicit programmer-defined pointer data types, no pointer arithmetic, and automatic garbage collection.

Answer 7

Robust

Question 8

Java is designed to operate in distributed environments, it has security features designed into the language and run-time system,
Java applications are _________ from intrusion.

Answer 8

secure

Question 9

the Java Compiler TM product generates bytecodes–an _________ intermediate format designed to transport code efficiently to multiple hardware and software platforms.

Answer 9

architecture neutral

Question 10

Java is ________ , so it solves both the binary distribution problem and the version problem. Also it is
strict in its definition of the basic language: it specifies the sizes of its basic data types and the behavior of its arithmetic operators.

Answer 10

Portable

Question 11

The architecture-neutral and portable language platform of Java technology is known as __________

Answer 11

the Java virtual machine.

Question 12

Java technology is both a ___________________ and a __________

Answer 12

Java technology is both a programming language and a platform.

Question 13

The Java virtual machine is based primarily on which interface specification?

Answer 13

The POSIX specification–an industry-standard definition of a portable system interface.

Question 14

Java has __________ by adopting a scheme by which the interpreter can run at full speed without needing to check the run-time environment.

Answer 14

high performance

Question 15

The __________ runs as a low-priority background thread, ensuring a high probability that memory is available when required

Answer 15

automatic garbage collector

Question 16

The _________ can execute __________ directly on any machine to which it and the _________ system have been ported.

Answer 16

Java interpreter
Java bytecodes
run-time

Question 17

While the Java Compiler is strict in its compile-time static checking, the language and run-time system are _________ in their linking stages. Classes are linked only as needed. New code modules can be linked in on demand from a variety of sources, even from sources across a network.

Answer 17

dynamic

Question 18

In Java, how do you obtain the effects of #define?

Answer 18

by using constants.

Question 19

In Java how do you obtain the effects of typedef?

Answer 19

by declaring classes–after all, a class effectively declares a new type.

Question 20

Why don’t you need header files in Java?

Answer 20

You don’t need header files because the Java compiler compiles class definitions into a binary form that retains all the type information through to link time.

Question 21

In the Java programming language, all source code is first written in plain text files ending with the _________ extension.

Answer 21

.java

Question 22

.java source files are compiled into _________ files by __________.

Answer 22

.class
the javac compiler

Question 23

A .class file does not contain code that is native to your processor; it instead contains _________ — the machine language of the Java Virtual Machine (Java VM).

Answer 23

bytecodes

Question 24

The Java platform has two components:

Answer 24

The Java Virtual Machine

The Java Application Programming Interface (API)

Question 25

__________ is a large collection of ready-made software components that provide many useful capabilities.

Answer 25

The API

Question 26

The API is grouped into libraries of related classes and interfaces; these libraries are known as _________

Answer 26

packages

Question 27

The _________ provide everything you’ll need for compiling, running, monitoring, debugging, and documenting your applications.

Answer 27

development tools

Question 28

_________ spans everything from basic objects, to networking and security, to XML generation and database access, and more.

Answer 28

The API

Question 29

JavaFX, Swing, and Java 2D toolkits make it possible to create sophisticated ________.

Answer 29

Graphical User Interfaces (GUIs)

Question 30

_________ such as the Java IDL API, JDBC API, Java Naming and Directory Interface (JNDI) API, Java RMI, and Java Remote Method Invocation over Internet Inter-ORB Protocol Technology (Java RMI-IIOP Technology) enable database access and manipulation of remote objects.

Answer 30

Integration libraries

Question 31

After compiling the IDE invokes the _________, which uses the Java virtual machine to run your application.

Answer 31

Java application launcher tool (java)