4 - for & while loops

Last updated about 4 years ago

13 questions

4 - for & while loops

Last updated about 4 years ago

13 questions

Question 1

for loops are best suited for which of the following purposes?

Performing the same action on an increasingly smaller subset

Infinitely repeating actions

Counting

Actions repeating until a certain event occurs

Question 2

Each time through a loop is called a(n)

Repeat

Go

Iteration

Fabulation

Question 3

Which of the following is the right order of the parts of a for loop?

for( stop ; start ; step )

for( step ; start ; stop )

for( step ; stop ; start )

for( start ; stop ; step )

Question 4

Which of the following counts through the numbers 0 to 9 inclusive?

for( int i=1; i<=9; i++ )

for( int i=1; i<=10; i++ )

for( int i=0; i<9; i++ )

for( int i=0; i<10; i++ )

Question 5

Given the line of code:

i=i+1;

What can be said?

There are two steps in this code, first adding 1 to i then assigning the result back to i

This code won’t run because that is mathematically impossible

This code won’t run because i+1 is out of range

This is a loop within a single line that happens one more time

Question 6

Which of the following has the same effect as i++ ?

i+1

i

i=i+1

I--

Question 7

Why is it acceptable to use i as a counter variable?

That is conventional and common, i is short for “index”

I represents you, the programmer

i is short for “intensity” as in current

It is NOT acceptable

Question 8

while loops are best suited for which of the following purposes?

Actions repeating until a certain event occurs

Counting

Infinitely repeating actions

Performing the same action on an increasingly smaller subset

Question 9

Each time through a while loop is called a(n)

Iteration

Go

Repeat

Fabulation

Question 10

10.

Which of the following is the right template for a header line in a while loop?

Repeat

Go

Iteration

Fabulation

Question 11

11.

Which of the following is the right template for a header line in a while loop?

while( control_expression_is_false )

while

while( start ; stop ; step )

while( control_expression_is_true )

Question 12

12.

Which of the following counts through the numbers 0 to 9 inclusive?

int i=0;
while( i<9 )
{ i++; }

int i=0;
while( i<10 )
{ i++; }

int i=1;
while( i<=10 )
{ i++; }

int i=1;
while( i<=9 )
{ i++ }

Question 13

13.

What is wrong with the following code?

int i=0; while( i<100 ) {
Serial.println(i);
i++;
}
Serial.print("After the loop, i’s valuse is:");
Serial.println(i);

The variable i is out of scope after the while loop

The for loop header line is not formatted correctly

The variable i cannot be printed to the serial monitor

There isn’t anything wrong with this loop

Question 1

for loops are best suited for which of the following purposes?

Performing the same action on an increasingly smaller subset

Infinitely repeating actions

Counting

Actions repeating until a certain event occurs

Question 2

Each time through a loop is called a(n)

Repeat

Go

Iteration

Fabulation

Question 3

Which of the following is the right order of the parts of a for loop?

for( stop ; start ; step )

for( step ; start ; stop )

for( step ; stop ; start )

for( start ; stop ; step )

Question 4

Which of the following counts through the numbers 0 to 9 inclusive?

for( int i=1; i<=9; i++ )

for( int i=1; i<=10; i++ )

for( int i=0; i<9; i++ )

for( int i=0; i<10; i++ )

Question 5

Given the line of code:

i=i+1;

What can be said?

There are two steps in this code, first adding 1 to i then assigning the result back to i

This code won’t run because that is mathematically impossible

This code won’t run because i+1 is out of range

This is a loop within a single line that happens one more time

Question 6

Which of the following has the same effect as i++ ?

i+1

i

i=i+1

I--

Question 7

Why is it acceptable to use i as a counter variable?

That is conventional and common, i is short for “index”

I represents you, the programmer

i is short for “intensity” as in current

It is NOT acceptable

Question 8

while loops are best suited for which of the following purposes?

Actions repeating until a certain event occurs

Counting

Infinitely repeating actions

Performing the same action on an increasingly smaller subset

Question 9

Each time through a while loop is called a(n)

Iteration

Go

Repeat

Fabulation

Question 10

10.

Which of the following is the right template for a header line in a while loop?

Repeat

Go

Iteration

Fabulation

Question 11

11.

Which of the following is the right template for a header line in a while loop?

while( control_expression_is_false )

while

while( start ; stop ; step )

while( control_expression_is_true )

Question 12

12.

Which of the following counts through the numbers 0 to 9 inclusive?

int i=0;
while( i<9 )
{ i++; }

int i=0;
while( i<10 )
{ i++; }

int i=1;
while( i<=10 )
{ i++; }

int i=1;
while( i<=9 )
{ i++ }

Question 13

13.

What is wrong with the following code?

int i=0; while( i<100 ) {
Serial.println(i);
i++;
}
Serial.print("After the loop, i’s valuse is:");
Serial.println(i);

The variable i is out of scope after the while loop

The for loop header line is not formatted correctly

The variable i cannot be printed to the serial monitor

There isn’t anything wrong with this loop

4 - for & while loops

4 - for & while loops

for loops are best suited for which of the following purposes?

Each time through a loop is called a(n)

Which of the following is the right order of the parts of a for loop?

Which of the following counts through the numbers 0 to 9 inclusive?

Given the line of code:i=i+1;What can be said?

Which of the following has the same effect as i++ ?

Why is it acceptable to use i as a counter variable?

while loops are best suited for which of the following purposes?

Each time through a while loop is called a(n)

Which of the following is the right template for a header line in a while loop?

Which of the following is the right template for a header line in a while loop?

Which of the following counts through the numbers 0 to 9 inclusive?

What is wrong with the following code?int i=0; while( i<100 ) { Serial.println(i); i++;}Serial.print("After the loop, i’s valuse is:");Serial.println(i);

for loops are best suited for which of the following purposes?

Each time through a loop is called a(n)

Which of the following is the right order of the parts of a for loop?

Which of the following counts through the numbers 0 to 9 inclusive?

Given the line of code:i=i+1;What can be said?

Which of the following has the same effect as i++ ?

Why is it acceptable to use i as a counter variable?

while loops are best suited for which of the following purposes?

Each time through a while loop is called a(n)

Which of the following is the right template for a header line in a while loop?

Which of the following is the right template for a header line in a while loop?

Which of the following counts through the numbers 0 to 9 inclusive?

What is wrong with the following code?int i=0; while( i<100 ) { Serial.println(i); i++;}Serial.print("After the loop, i’s valuse is:");Serial.println(i);

Given the line of code:

i=i+1;

What can be said?

What is wrong with the following code?

int i=0; while( i<100 ) {
Serial.println(i);
i++;
}
Serial.print("After the loop, i’s valuse is:");
Serial.println(i);

Given the line of code:

i=i+1;

What can be said?

What is wrong with the following code?

int i=0; while( i<100 ) {
Serial.println(i);
i++;
}
Serial.print("After the loop, i’s valuse is:");
Serial.println(i);