Object Oriented Programming [Finals]

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Question

Answer

What is the name of the class in this program: class HelloWorld{ public static void main(String args[ ]){ System.out.println(“Hello World”); } }

HelloWorld

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It provides simple and intuitive layout of GUIs without having to understand the complexities of Swing layout managers.

Netbeans Matisse

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Dennis Ritchie developed Java?

False

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What is the use of Access modifier "public" in Java language?

To call the main method outside of Class or Package by JVM

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API stands for Application Programming Interface

true

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A Netbeans feature that gives it an extensible Component Palette pre-installed Swing and AWT components, showing a components tree and properties, automatic code generation and full JavaBeans support.

GUI Builder

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out is a public static

True

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The JVM creates a software simulation of a CPU and memory and handles all communication between the Java program and the underlying operating system and hardware.

True

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print() prints string inside the quotes then the cursor moves to the beginning of the next line

False

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The main method is declared private so that it is accessible as part of the private interface of the program.

False

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Who developed Java?

James Gosling

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The System class is not a part of the core Java language package of the Application Programming Interface (API)

False

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Reserved words are names that are given by the programmer as name of variables, methods or functions, classes etc

False

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It is a class used to get user input.

Scanner

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Oke was the original name of Java

False

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Every statement in Java language should end with ";"?

True

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Scanner class is found on java.util package.

True

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String args[] in main method are used for? public static void main(String args[]) { // }

Passing arguments at run time

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nextBool() reads a boolean value from the user.

False

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What is the default return type of a method in Java language?

void

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static is a not the state of a method

False

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out keyword accepts input data

False

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double and float data types are used for numbers with decimal places

True

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A single-line comment starts with /*

False

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What is the name of the class in this program: class HelloJava{ public static void main(String args[ ]){ System.out.println(“Hello Java”); } }

HelloJava

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The System class is a part of the core Java language package of the Application Programming Interface (API)

True

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A feature of Netbeans that enables support for multiple source roots, easy management of libraries, easily ported to other environments, all based on Apache Ant.

project system

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A Netbeans feature that provides XML, DTD and CSS Text Editor and XML Productivity Tools Wizards to help user generate codes.

XML

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Correct way of displaying a string output is: System.out.println(“some text here”);

True

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It reads a byte value from the user.

nextByte()

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One of the tools for Object oriented design doesn't include class browser

False

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A java edition that is It is developed using the Java Community Process

Enterprise Edition

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byte has a minimum value of -128

True

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byte has a minimum value of -127

False

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The goal in developing netbeans was to write a Delphi- like Java IDE in Java for the first time.

True

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A string is enclosed with double quotation marks.

True

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println belongs to the System class.

True

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IDE stands for?

Integrated Development Environment

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main method is int because the Java interpreter does not expect to receive or process any output from the class.

False

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nextB () reads a byte value from the user.

False

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Every statement in Java language should end with ":"?

False

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A method that provides string formatting

printf()

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The goal in developing netbeans was to write a python- like Java IDE in Java for the first time.

False

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An IDE doesn't have build-automation tools.

False

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Java Wrapper Classes are used in converting one data type into another data type.

True

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The main method is declared public so that it is accessible as part of the public interface of the program.

True

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String is a primitive data type

True

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println() prints string inside the quotes then the cursor moves to the beginning of the next line

True

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Netscape Navigator was developed in 1995 to support Java.

True

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An IDE doesn't have Compiler and/or interpreter.

False

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Netbeans Matisse supports internationalization, and industrial look-and-feel rules, which is very important for large scale application meant to be spread world wide.

True

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What is the name of the class in this program: class Rectangle{ public static void main(String args[ ]){ System.out.println(“This is a Rectangle”); } }

Rectangle

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The main method is non-static because it must be called before the class that hosts the method is instantiated

False

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A feature of java that means that the Java interpreter can execute the bytecodes directly on any machine to which the interpreter

Interpreted, threaded, and dynamic

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An IDE consists of a debugger

True

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In standalone Java applications, which method is mandatory?

main method

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A function in C language is similar to what in Java language?

Method

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An IDE doesn't have a source code editor

False

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The very first web browser created by Java.

Webrunner

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A single-line comment starts with //

True

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JUM handles all communication between the Java program and the underlying operating system and hardware.

False

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An IDE may have Various tools to simplify the construction of a GUI.

True

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A Netbeans feature that provides information about the runtime behavior of applications

NetBeans Profiler

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Every statement in Java language should end with ","?

False

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int has a width of 4 bytes

True

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nextBoolean() reads a boolean value from the user

True

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long has a value that ranges from -32768 to 32767

False

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It reads a double value from the user

nextDouble()

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int has a width of 8 bytes

False

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A Netbeans feature that provides the services common to almost all large desktop applications such as: window, menu, settings management and storage, file access and more.

NetBeans Platform

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A multi-line comment enclosed within /* …. **/

False

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String is a derived data type

True

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An IDE doesn't have build-automation tools.

False

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All methods and variables in Java language are kept inside a?

Class or Interface

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static is a not the state of a method

False

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boolean data type has only two values

True

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An IDE doesn't have various tools to simplify the construction of a GUI.

False

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A java edition that lets you develop and deploy Java applications on desktops and servers.

Standard Edition

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static is a state of a method

True

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The System keyword defines a template for an object of derived type HelloWorld

True

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"\\\" is an escape character for printing '\'.

False

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double and float data types are used for numbers with decimal places

True

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Java is a portable language that could run on any platform. The language was able to do this by generating intermediate code for a hypothetical computer called a virtual machine.

True

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nextInt() reads a integer value from the user.

True

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A string is enclosed with single quotation marks.

False

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A feature of java that means Java technology is designed to support applications that will be deployed into heterogeneous network environments

Architecture neutral and portable

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Short has 2 width bytes

True

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A java edition that rich user interface, performance, versatility, portability, and security that today's applications require.

Standard Edition

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Because of the Netbeans IDE's Compile on Save feature, you have to manually compile your project in order to run it in the IDE.

False

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Netbeans Matisse doesn't have an intelligent way to build GUI for Java (unlike eclipse), that can actually compete with the Visual Studio GUI builder.

False

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The Java compiler generates

byte code

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When you save a Java source file, the IDE doesn't automatically compiles it

False

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A bytecode is interpreted by the JVM.

True

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double data type has a width of 16 in bytes.

False

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Scanner class is found on what java package?

java.util

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Correct command for running a java application named "HelloWorld.java" using console

java HelloWorld

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[True or False] System is a method

False

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[True or False] The main method is declared private so that it is accessible as part of the private interface of the program.

False

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[True or False] nextDbl () reads a double value from the user.

False

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Choose a Single Line Comment in Java Language below? Group of answer choices /*Some comments*/ */Some comments/* Some comments// //Some comments

//Some comments

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[True or False] %n is for new line

True

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[True or False] An IDE has build-automation tools.

True

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[True or False] short has a width of 4 bytes

False

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Original name of Java

Oak

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A method that prints string inside the quotes then the cursor moves to the beginning of the next line

println()

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[True or False] short has a value that ranges from -32768 to 32767

True

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[True or False] A documentation or javadoc comment is enclosed /** and */

True

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[True or False] int has a width of 8 bytes

False

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Java Bytecode File Extension name

.class

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A feature of java that means that Java can be programmed without extensive programmer training while being attuned to current software practices

Simple, object-oriented, and familiar

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[True or False] short has a width of 2 bytes

True

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What are the valid White Spaces available in Java Language? - Enter - All the above - Space - Tab

All the above

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A command for the documentation generator

javadoc

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[True or False] nextLn () reads a String value from the user.

False

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[True or False] An IDE consists of Compiler and/or interpreter.

True

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[True or False] Scanner class used to get user input

True

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A feature of Netbeans with Syntax highlighting for Java, XML, HTML, CSS, JSP and IDL, full support of new JDK 1.5 features, live parsing/error marking, popup javadoc, code completion, and fast class importing.

Code Editor

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[True or False] All methods and variables in Java language are kept inside a method?

False

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[True or False] IEE is a computer software to help compute programmers develop software.

False

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[True or False] "\new" is an escape character for new line.

False

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A valid Identifier or name in Java language can start with which character? Group of answer choices option1: a-z, A-Z both option1 and option2 0-9 option2: $, _

both option 1 and option2

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Escape character for new line.

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A Netbeans feature that is used to write, test, and debug applications for the Java Micro Edition platform (J2ME) technology-enabled mobile devices

NetBeans Mobility Pack

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A java edition that provides a robust, flexible environment for applications running on embedded and mobile devices in the Internet of Things

Micro Edition

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[True or False] out keyword accepts output data

True

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File extension name of a java file.

.java

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