Java Basics Review #2

Computer basics: SDK, IDE, compiler, interpreter Java basics: arithmetic operators, order of operations, comments, whitespace, variables

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Questions 20

Answers

1
Java is an interpreted language?
False
True
2
System.out.print(9 % 4);
2
0
1
3
3
System.out.print(4 + 6 % 3)
0
6
1
4
4
This method is required for a program to run
print method
main method
begin method
start method
5
If an identifer name is in all caps, we assume what based on good programming procedures:
it is an error
it is the main method
it is a constant
it is a variable
6
System.out.println(7.0 / 2);
3
3.5
0
4
7
System.out.print(7 / 2);
3.5
3
4
0
8
What SDK are we using in this class?
Online GDB
Software Development Kit
Java Development Kit
Intellij
9
The Mars robot uses which programming language:
C#
Java
Python
C++
10
What are variables used for?
storing data
finding errors
manipulating numbers
printing output
11
What IDE are we using in the 1301 classroom?
Online GDB
Software Development Kit
Java Development Kit
IntelliJ
12
What are the two categories of numbers in programming?
whole numbers and imaginery numbers
integers and floating point
integers and composite numbers
positive numbers and negative numbers
13
Which of the following variable names is an example of camel case?
schoolPOSTALaddress
SchoolPostalAddress
school_postal_address
schoolPostalAddress
14
Which is not a primitive data type?
String
boolean
byte
float
15
What value can you assign to a boolean variable?
RHS
true
1
False
16
Assigning a value to a variable is called:
Initialization
Recording
Scanning
Declaring
17
Which of the following is NOT an arithmetic operator?
%
+
=
/
18
Which is not a valid way to comment code?
//comment here
/* comment here */
<!!-- comment here -->
/** comment here */
19
Java statements end with:
:
a return
.
;
20
System.out.println(3 + 3 * 3);
27
12
18
9

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