FINAL EXAM

Question 1

The Java programming language supports various arithmetic operators for all floating-point and integer numbers.

Answer 1

Arithmetic Operators

Question 2

Are used to increase or decreasing the value of an operand. Increment operator adds 1 to the value of a variable, whereas the decrement operator decreases a value.

Answer 2

Unary Operators

Question 3

==

Answer 3

Equal to

Question 4

!=

Answer 4

Not equal to

Question 5

>

Answer 5

Greater than

Question 6

> =

Answer 6

Greater than or equal to

Question 7

<

Answer 7

Less than

Question 8

<=

Answer 8

Less than or equal to

Question 9

&&

Answer 9

Conditional - AND

Question 10

l l

Answer 10

Conditional - OR

Question 11

Can compare numbers or strings and perform evaluations. (instanceof)

Answer 11

Comparison Operator

Question 12

~

Answer 12

Unary Bitewise Complement

Question 13

«

Answer 13

Signed Left Shift

Question 14

> >

Answer 14

Signed Right Shift

Question 15

> > >

Answer 15

Unsigned Right Shift

Question 16

&

Answer 16

Bitwise AND

Question 17

( ^ )

Answer 17

Bitwise Exclusive OR

Question 18

l

Answer 18

Bitwise inclusive OR

Question 19

Change values of variables, call methods and create objects

Answer 19

Expression Statement

Question 20

Declare variables

Answer 20

Declaration Variables

Question 21

Determine the order that statements are executed
Typically, Java statements parse from the top to the bottom of the program

Answer 21

Control-Flow Statement

Question 22

Sequence of zero or more statement enclosed in braces { }
Generally used to group together several statements, so they can be used in a situation that requires you to use a single statement

Answer 22

Block Statement

Question 23

Use if to specify a block of code to be executed, if a specified condition is
true

Use else to specify a block of code to be executed, if the same condition is
false

Use else if to specify a new condition to test, if the first condition is false

Use switch to specify many alternative blocks of code to be executed

Answer 23

Conditional Statement

Question 24

Use the if statement to specify a block of Java code to be executed if a condition is true.

Answer 24

If Statement

Question 25

Use the else statement to specify a block of code to be executed if the condition is false.

Answer 25

Else Statement

Question 26

Use the else if statement to specify a new condition if the first condition is false.

Answer 26

Else IF Statement

Question 27

There is also a short-hand if else, it consists of three operands. It can be used to replace multiple lines of code with a single line. It is often used to replace simple if else statements.

Answer 27

Ternary Operator

Question 28

variable = (condition) ? expressionTrue : expressionFalse;

Answer 28

Ternary Operator

Question 29

Is a sequence of characters that exist as an object of the class java.lang. Java strings are created and manipulated through the string class. Once created, a string is immutable – its value cannot be changed.

Answer 29

Java String

Question 30

Is a container object that holds a fixed number of values of a single type.

Answer 30

Array

Question 31

Each item in an array is called
It also accessed by its numerical index

Answer 31

Element

Question 32

int[] anArray;

Answer 32

Declaring an Array

Question 33

One way to create is with the new operator
anArray = new int[10];

Answer 33

Creating an Array