4 - for & while loops

Last updated over 4 years ago

13 questions

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

Each time through a loop is called a(n)

Repeat

Go

Iteration

Fabulation

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 )

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++ )

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

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

i+1

i

i=i+1

I--

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

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

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

Iteration

Go

Repeat

Fabulation

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

Repeat

Go

Iteration

Fabulation

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 )

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++ }

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

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

Each time through a loop is called a(n)

Repeat

Go

Iteration

Fabulation

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 )

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++ )

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

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

i+1

i

i=i+1

I--

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

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

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

Iteration

Go

Repeat

Fabulation

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

Repeat

Go

Iteration

Fabulation

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 )

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++ }

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);

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);