Switch

Question 1

The ________ in Java allows you to execute a specific block of code from various options, depending on the value of a variable or expressions. It serves as an alternative to multiple if-else statements, enhancing readability when handling a variable that can assume several distinct values.

Answer 1

switch statement

Question 2

The switch statement in Java allows you to execute a specific ____________ from various options, depending on the value of a variable or expressions. It serves as an alternative to multiple if-else statements, enhancing readability when handling a variable that can assume several distinct values.

Answer 2

block of codes

Question 3

_______ represent the values that the variable is compared against.

Answer 3

case labels

Question 4

The switch statement in Java allows you to execute a specific block of code from various
_____, depending on the value of a variable or expressions. It serves as an alternative to
multiple if-else statements, enhancing readability when handling a variable that can assume
several distinct values.

Answer 4

options

Question 5

The switch statement in Java allows you to execute a specific block of code from various
options, depending on the 1.____ of a 2._____ or 3.______. It serves as an alternative to
multiple if-else statements, enhancing readability when handling a variable that can assume
several distinct values.

Answer 5

1.value
2.variable
3.expressions

Question 6

The switch statement in Java allows you to execute a specific block of code from various
options, depending on the value of a variable or expressions. It serves as an alternative to
multiple _______, enhancing readability when handling a variable that can assume
several distinct values.

Answer 6

if-else statements

Question 7

The switch statement in Java allows you to execute a specific block of code from various
options, depending on the value of a variable or expressions. It serves as an alternative to
multiple if-else statements, enhancing 1._______ when handling a 2.______ that can assume
several distinct values.

Answer 7

1.readability
2.variable

Question 8

Java provides two types of switch constructs:

Answer 8

1. Switch Statements
   2.Switch Expression

Question 9

The traditional way to execute code of blocks based on a matched
case.

Answer 9

switch statements

Question 10

Introduced in Java 12 (and standardized in Java 14). It allows the
switch to directly produce a value.

Answer 10

Switch Expression

Question 11

Each type can use two style

Answer 11

1. Colon Notation
2. Arrow Notation

Question 12

The older, classic format

Answer 12

Colon Notation

Question 13

A newer, cleaner format introduced switch expression.

Answer 13

Arrow Notation

Question 14

_______ is the ______ being tested.

Answer 14

variable

Question 15

case labels represent the 1._____ that the 2._____ is compared against.

Answer 15

1.values
2.variable

Question 16

The 1._______ is 2.____ but recommended, at it handles any cases explicitly covered by the
case labels

Answer 16

1.default case
2.optional

Question 17

The default case is optional but _________, at it handles any cases explicitly covered by the
case labels

Answer 17

recommended

Question 18

The default case is optional but recommended, at it handles any 1.____ explicitly covered by the
2._____

Answer 18

1.cases
2.case labels

Question 19

The variable/expression in the switch must evaluate one of f the following types:
Int, type, short, char, String,, or enum.
Floating point numbers (float,double) are not allowed.

Answer 19

Expression Type

Question 20

Expression Type:
The _________ in the switch must evaluate one f the following types;
Int, type, short, char, String,, or enum.
Floating point numbers (float,double) are not allowed.

Answer 20

variable/expression

Question 21

Expression Type:

The variable/expression in the switch must evaluate one f the following types:
______________
Floating point numbers (float,double) are not allowed.

Answer 21

Int, type, short, char, String,, or enum.

Question 22

Expression Type:

The variable/expression in the switch must evaluate one f the following types;
Int, type, short, char, String,, or enum.
____________ are not allowed.

Answer 22

Floating point numbers (float,double)

Question 23

No duplicate value are allowed across case labels. Each case ends with a break (optional but recommended) to prevent “fall-through.”

Answer 23

Case Labels

Question 24

Case Label: No ______ are allowed across case labels:
Each case ends with a break (optional but recommended) to prevent “fall-through.”

Answer 24

duplicate value

Question 25

Case Labels: No duplicate value are allowed across case labels: Each case ends with a break (optional but recommended) to prevent ______.

Answer 25

fall-through

Question 26

Each case ends with a _____ (optional but recommended) to prevent ______.

Answer 26

break

Question 27

Each case ends with a break (______ but recommended) to prevent fall-through

Answer 27

optional

Question 28

Case Labels: No duplicate value are allowed across ______:

Answer 28

case labels

Question 29

You can’t use a 1______ or 2._____ because the 3._______ needs to know exactly what to 4._____ when the 5._____ runs.

Answer 29

1.variable 2.calculation 3.computer 4.match 5.program

Question 30

Each case value must be a 1.______ or a 2.____, not a 3._____ or 4._____. In switch statements, each case must have a fixed value that doesn’t change, like a number, a word, or a character.

Answer 30

1.constant 2.literal 3.variable 4.expression

Question 31

Each case value must be a constant or a literal, not a variable or expression. In 1.______, each 2.____ must have a 3.____ that doesn’t change, like a number, a word, or a character.

Answer 31

1. switch statements 2.case 3.fixed value

Question 32

Each case value must be a constant or a literal, not a variable or expression. In switch statements, each case must have a fixed value that doesn’t change, like a 1._____, a 2.____, or a _______.

Answer 32

1.number 2.word 3.character

Question 33

The default label is optional but is used to handle unexpected values.If no case matches and there’s no default, the program continues after the switch.

Answer 33

Default Case

Question 34

The 1._____ is 2.____ but is used to handle 3.______If no case matches and there’s no default, the program continues after the switch.

Answer 34

1.default label 2.optional 3.unexpected values

Question 35

The break exits the switch block. Omitting a break will cause all subsequent case blocks to execute until a break is found(fall-through behavior).

Answer 35

Break Statement

Question 36

The break exits the switch block. Omitting a break will cause all 1._______ to execute until a break is found 2._____

Answer 36

1.subsequent case blocks 2.(fall-through behavior).

Question 37

A 1.______ can include any number of case labels, followed by the 2._______. A crucial aspect of writing a switch statement in Java is the 3.______.Without a break, the program will continue executing the following cases, even if they don't match the condition– a phenomenon known as ‘4._____.” Including a break ensures that the program exits the 5.______ after a matching case is executed.

Answer 37

1.switch block 2.code block to execute 3.break statement 4.fall-through 5.switch statement

Question 38

Including a break ensures that the program 1.____ the 2._____ after a 3.____ is 4._____.

Answer 38

1.exits 2.switch statement 3.matching case 4. executed

Question 39

1._______: In scenarios with multiple conditions, switch statements can be more 2.____ than their 3._____. By utilizing a switch statement, the computer can 4._____" to the appropriate case, potentially employing an efficient 5._____, such as a shortcut list or a rapid search.

Answer 39

1.Efficiency 2.efficient 3.if-else counterparts 4.swiftly"jump 5.internal method

Question 40

This approach can lead to 1._____ than evaluating condition 2._______, as is done with 3.______.

Answer 40

1.faster performance 2.sequentially 3.if-else statements

Question 41

By utilizing a switch statement, the computer can swiftly"jump" to the appropriate case, potentially employing an efficient internal method, such as a 1.______ or a 2.___.

Answer 41

1.shortcut list 2.rapid search

Question 42

1.______: Switch statements can make 2._______clearer and more straightforward, making your code easier to read and maintain.

Answer 42

1.Readability 2.complex conditional logic

Question 43

Readability: Switch statements can make complex conditional logic 1.____ and 2._____, making your code 3.____ to 4.___ and 5._____.

Answer 43

1.clearer 2.more straightforward 3.easier 4.read 5.maintain

Question 44

1.____: Writing a switch statement often requires 2.____ than a 3._____ of 4._____, making your 5._____ and 6.______.

Answer 44

1.Simplicity 2.less syntax 3.comparable series 4.if-else statements 5.code simpler 6.more concise

Question 45

In Java, 1.____ is a 2.____ introduced as part of 3.______ in 4._____ (as a preview feature) and officially released in 5.____.

Answer 45

1.yield 2.keyword 3.switch expressions 4.Java 13 5.Java 14

Question 46

The 1._______ allows you to 2.______ from a 3._____ when 4._______ are required for a particular case. This is different from the -> arrow notation, which allows a direct return,and provides more flexibility in cases where complex logic is necessary.

Answer 46

1.yield keyword 2.return a value 3.switch expression 4.multiple lines of code

Question 47

This is different from the -> arrow notation, which allows a 1._____,and provides more 2.____ in cases where 3._____ is 4.____.

Answer 47

1.direct return 2.flexibility 3.complex logic 4.necessary

Question 48

Before yield, 1._______ with 2._____ were limited to 3.______. However, if you needed to perform more than one operator in case (e.g.,calculations, logging, or complex decision-making), yield enables you to do so while still returning a value from the switch expression.

Answer 48

1.switch expressions 2.arrow notation 3.simple one-liner operations

Question 49

Before yield, switch expressions with arrow notation were limited to simple one-lineroperations. However, if you needed to perform 1.______ in case (2.______, 3._____, or 4.______), yield enables you to do so while still returning a value from the switch expression.

Answer 49

1.more than one operator 2.e.g.,calculations 3.logging 4.complex decision-making

Question 50

1.____ enables you to do so while still 2._______ from the 3._____.

Answer 50

1.yield 2.returning a value 3.switch expression

Question 51

1.______ is used to 2._____ from a 3._____ in a 4.____:

Answer 51

1.Yield 2.return a value 3.case block 4.switch expression

Question 52

The ______ is applied to remove any unwanted spaces that may beaccidentally entered before or after the day case.

Answer 52

trim() method

Question 53

The trim() method is applied to 1.____ any 2._____ that may be accidentally entered before or after the day case.

Answer 53

1.remove 2.unwanted spaces