Question 1

Use a(n) ____ loop to execute a body of statements continually as long as the Boolean expression that controls entry into the loop continues to be true .

Accepted Answer

A)  empty 
B)  while 
C)  definite 
D)  control 
A)  empty 
B)  while 
C)  definite 
D)  control B

Question 2

How are indefinite loops used for validating data? Why is a loop structure typically the better choice for validating data than an if statement?

Accepted Answer

Programmers commonly use indefinite loops when validating input data. Validating data is  the process of ensuring that a value falls within a specified range. For example, suppose you  require a user to enter a value no greater than 3. If the user enters 3 or less at the first prompt, the loop never executes. However, if the user enters a number greater than 3, the shaded loop executes, providing the user with another chance to enter a correct value. While the user continues to enter incorrect data, the loop repeats. Novice programmers often make the mistake of checking for invalid data using a decision instead of a loop. That is, they ask whether the data is invalid using an if statement; if the data is invalid, they reprompt the user. However, they forget that a user might enter incorrect data multiple times. Usually, a loop is the best structure to use when validating input data.

Question 3

Match between columns
                        Premises: Multiple statements within curly braces

Accepted Answer

The Answer of *= and block and accumulating and % is...

Question 4

When creating a for loop, which statement will correctly initialize more than one variable?

Accepted Answer

A)  for a=1, b=2 
B)  for(a=1; b=2) 
C)  for(a=1, b=2) 
D)  for(a = 1&& b = 2) 
A)  for a=1, b=2 
B)  for(a=1; b=2) 
C)  for(a=1, b=2) 
D)  for(a = 1&& b = 2)

Question 5

You can use virtually any number of nested loops; however, at some point, your machine will no longer be able to store all the necessary looping information.

Accepted Answer

A) True 
 B)False

Question 6

In the expressions b = 8 and c = --b , what value will be assigned to the variable c ?

Accepted Answer

A)  7 
B)  8 
C)  9 
D)  10 
A)  7 
B)  8 
C)  9 
D)  10

Question 7

When nesting loops, the variable in the outer loop changes more frequently.

Accepted Answer

A) True 
 B)False

Question 8

You can initialize one or more variables in the first section of a  for  statement.

Accepted Answer

A) True 
 B)False

Question 9

Making a comparison to 0 is slower than making a comparison to any other value.

Accepted Answer

A) True 
 B)False

Question 10

Match between columns
                        Premises: A shortcut for incrementing and accumulating

Accepted Answer

The Answer of data validation and decrementing and loop control is...

Question 11

The ____ loop is the posttest loop used in Java.

Accepted Answer

A)  for 
B)  counter-controlled 
C)  while 
D)  do...while 
A)  for 
B)  counter-controlled 
C)  while 
D)  do...while

Question 12

Which is an infinite loop?

Accepted Answer

A) loopCount = 5; while(loopCount > 3); { System.out.println("Hello"); loopCount = loopCount - 1; } B) loopCount = 1; while(loopCount < 3); { System.out.println("Hello"); } C) loopCount = 4; while(loopCount < 3); { System.out.println("Hello"); loopCount = loopCount + 1; } D) loopCount = 1; while(loopCount < 3); { System.out.println("Hello"); loopCount = loopCount + 1; } A) loopCount = 5; while(loopCount > 3); { System.out.println("Hello"); loopCount = loopCount - 1; } B) loopCount = 1; while(loopCount < 3); { System.out.println("Hello"); } C) loopCount = 4; while(loopCount < 3); { System.out.println("Hello"); loopCount = loopCount + 1; } D) loopCount = 1; while(loopCount < 3); { System.out.println("Hello"); loopCount = loopCount + 1; }

Question 13

The statements that make up a loop body will continue to execute as long as the expression value remains false.

Accepted Answer

A) True 
 B)False

Question 14

Match between columns
                        Premises: The technique of combining two loops into one

Accepted Answer

The Answer of for loop and prefix ++ and loop is...

Question 15

Match between columns
                        Premises: Performs no actions in its body

Accepted Answer

The Answer of for loop and decrementing and empty body is...

Question 16

​What are the three sections inside the parentheses of a for loop typically used for?

Accepted Answer

​You begin a for loop with the keyword f

Question 17

In a do…while loop, the loop will continue to execute until ____.

Accepted Answer

A)  the loop control variable is true 
B)  the loop control variable is false 
C)  the user types EXIT 
D)  the program terminates 
A)  the loop control variable is true 
B)  the loop control variable is false 
C)  the user types EXIT 
D)  the program terminates

Question 18

It is important that the loop control ____ be altered within the body of the loop.

Accepted Answer

A)  value 
B)  variable 
C)  constant 
D)  argument 
A)  value 
B)  variable 
C)  constant 
D)  argument

Question 19

How could you rewrite the following code to have the arithmetic performed only once, even if the loop executes 1,000 times? 
while (x < a + b) 
// loop body

Accepted Answer

int sum =

Question 20

Match between columns
                        Premises: Within parentheses are three sections separated by exactly two semicolons

Accepted Answer

The Answer of loop fusion and binary operators and data is...

Use a(n) ____ loop to execute a body of statements continually as long as the Boolean expression that controls entry into the loop continues to be true .

How are indefinite loops used for validating data? Why is a loop structure typically the better choice for validating data than an if statement?

When creating a for loop, which statement will correctly initialize more than one variable?

You can use virtually any number of nested loops; however, at some point, your machine will no longer be able to store all the necessary looping information.

In the expressions b = 8 and c = --b , what value will be assigned to the variable c ?

When nesting loops, the variable in the outer loop changes more frequently.

You can initialize one or more variables in the first section of a for statement.

Making a comparison to 0 is slower than making a comparison to any other value.

The ____ loop is the posttest loop used in Java.

Which is an infinite loop?

The statements that make up a loop body will continue to execute as long as the expression value remains false.

What are the three sections inside the parentheses of a for loop typically used for?

In a do…while loop, the loop will continue to execute until ____.

It is important that the loop control ____ be altered within the body of the loop.

How could you rewrite the following code to have the arithmetic performed only once, even if the loop executes 1,000 times? while (x < a + b) // loop body

Creating Your First Java Classes

Using Data

Using Methods, Classes and Objects

More Object Concepts

Making Decisions

Characters, Strings and the Stringbuilder

Arrays

Advanced Array Concepts

Introduction to Inheritance

Advanced Inheritance Concepts

Exception Handling

File Input and Output

Introduction to Swing Components

Using Javafx and Scene Builder

Filters

Exam 6: Looping

Use a(n) ____ loop to execute a body of statements continually as long as the Boolean expression that controls entry into the loop continues to be true .

How are indefinite loops used for validating data? Why is a loop structure typically the better choice for validating data than an if statement?

When creating a for loop, which statement will correctly initialize more than one variable?

You can use virtually any number of nested loops; however, at some point, your machine will no longer be able to store all the necessary looping information.

In the expressions b = 8 and c = --b , what value will be assigned to the variable c ?

When nesting loops, the variable in the outer loop changes more frequently.

You can initialize one or more variables in the first section of a for statement.

Making a comparison to 0 is slower than making a comparison to any other value.

The ____ loop is the posttest loop used in Java.

Which is an infinite loop?

The statements that make up a loop body will continue to execute as long as the expression value remains false.

​What are the three sections inside the parentheses of a for loop typically used for?

In a do…while loop, the loop will continue to execute until ____.

It is important that the loop control ____ be altered within the body of the loop.

How could you rewrite the following code to have the arithmetic performed only once, even if the loop executes 1,000 times? while (x < a + b) // loop body

Creating Your First Java Classes

Using Data

Using Methods, Classes and Objects

More Object Concepts

Making Decisions

Characters, Strings and the Stringbuilder

Arrays

Advanced Array Concepts

Introduction to Inheritance

Advanced Inheritance Concepts

Exception Handling

File Input and Output

Introduction to Swing Components

Using Javafx and Scene Builder

Filters

What are the three sections inside the parentheses of a for loop typically used for?