CIS 3145 MidTerm Exam Review Questions With Complete Solutions
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Course
CIS 3145
Institution
CIS 3145
CIS 3145 MidTerm Exam Review Questions With Complete Solutions
What is the Java Programming Language? - Correct Answer It was released in 1995 as a part of Sun Microsystems' Java platform. The language has developed much of its syntax from C and C++. Java applications are usually compiled to bytec...
CIS 3145 MidTerm Exam Review Questions With
Complete Solutions
What is the Java Programming Language? - Correct Answer It was released in 1995 as a part of Sun
Microsystems' Java platform. The language has developed much of its syntax from C and C++. Java
applications are usually compiled to bytecode (class file) that can run on any Java Virtual Machine
(JVM). Java is currently one of the most popular programming languages being used.
How does the Java language compare to other languages? - Correct Answer Java was made so its
applications can be run on any computer platform without needing to be compiled for each platform.
Designed to automatically handle many operations involving the allocation and de-allocation of
memory.
How is a Java application compiled? - Correct Answer The java compiler compiles the source code
into a format known as Java Byte-codes, those byte-codes can be run on any platform that has a Java
Runtime Environment or JRE. Than using a JVM (Java Virtual Machine) it translates the Bytecodes
into native code that can be understood.
What is the IDE? - Correct Answer Integrated Development Environment. Provides features that can
make developing Java applications considerably easier. These code developers include Netbeans,
Eclipse, and Android Studio.
How does Netbeans Work? - Correct Answer
**CHAPTER 2** - Correct Answer
How do you write code to create Class? - Correct Answer public class NumberGameApp;
What code creates main method? - Correct Answer public static void main(String[]args) {
}
What code creates a statement - Correct Answer package murach.test;
What code creates a java comment - Correct Answer // single line comment
<!-- Multiple Line Comment -->
,What is an identifier in the Java language? - Correct Answer In Java programming language, an
identifier is a name given to a variable, class or method. Identifiers start with a letter, underscore(_)
or dollar sign ($).
What are the rules for naming a class? Recommendations? - Correct Answer Common coding
convention is to start the class name and every word within that name with a capital letter. Letters
and Digits only.
Examples: CodeTesterApp, NumberGuessingGame, and StudentClass
What are the rules and recommendations for naming variables? - Correct Answer All variables have
to be initialized with the fist letter of the first word lowercase and any word after that with no space
and capitalized. Also, avoid abbreviations
Example: newCust, productPrice, maxQuantity
What is the syntax for declaring a primitive variable? - Correct Answer There are eight primitive data
types that are used for storing values in memory.
boolean
char
byte
float
void
short
double
int
long
Int and double are the two most common.
What is an assignment statement and how is it used with arithmetic expressions? - Correct Answer
An assignment statement assigns a value to a variable that is already declared. This value can be a
literal value, another variable, or an expression.
How is a string variable different from primitive variables? - Correct Answer Primitive types are the
basic types of data
reference types are any instantiable class as well as arrays
String, Scanner, Random, Die, int[], String[], etc.
reference variables store addresses
What objects are used to get input and send output to the console? - Correct Answer Getting input
int number = Integer.parseInt( input );
Sending output
System.out.println("Output to console")
**CHAPTER 3** - Correct Answer
What code is used to create a class? - Correct Answer java.lang.String
java.lang.Integer
java.lang.Double
java.util.Scanner
java.text.NumberFormat
What code is used to create an object? - Correct Answer new ClassName(arguments);
When creating an object, you are creating an instance of the class. Then, use the methods of the
class by calling them from the object.
What are methods? - Correct Answer A method is a block of code that preforms an action. A method
typically returns a value or object that you can assign to a variable.
What is a static method? - Correct Answer A static method, similar to regular methods, but you can
call them directly from the class without creating an object from the class.
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