Podcast
Questions and Answers
What does the code V[i] = TextWindow.Read()
assign to cell V[i]
?
What does the code V[i] = TextWindow.Read()
assign to cell V[i]
?
The value that was read from the keyboard.
The variable i
is used as a ______ for the loop.
The variable i
is used as a ______ for the loop.
counter
The variable i
initializes to 1.
The variable i
initializes to 1.
True
The loop continues until the condition i<5
is true.
The loop continues until the condition i<5
is true.
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What is the purpose of the keyword while
in the loop?
What is the purpose of the keyword while
in the loop?
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What is the purpose of i=i+1
in the loop?
What is the purpose of i=i+1
in the loop?
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The value of i
is incremented by i=i+1
only when it reaches the last cell of the list.
The value of i
is incremented by i=i+1
only when it reaches the last cell of the list.
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Match the code snippets with their corresponding description:
Match the code snippets with their corresponding description:
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After the first turn of the loop, what is the value of V[1]
?
After the first turn of the loop, what is the value of V[1]
?
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After the second turn of the loop, what is the value of V[2]
?
After the second turn of the loop, what is the value of V[2]
?
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What is the purpose of the code TextWindow.WriteLine(i + 1 + " of the list")
?
What is the purpose of the code TextWindow.WriteLine(i + 1 + " of the list")
?
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The counter is initialized to 0.
The counter is initialized to 0.
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Each time the loop completes one turn, the counter is increased by 1.
Each time the loop completes one turn, the counter is increased by 1.
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The loop is executed until the i
value equals 4.
The loop is executed until the i
value equals 4.
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What is the purpose of the statement TextWindow.WriteLine(i + 1 + " of the list")
?
What is the purpose of the statement TextWindow.WriteLine(i + 1 + " of the list")
?
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This code snippet will display the index of the cell on each line.
This code snippet will display the index of the cell on each line.
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What does the keyword while
signify in the loop?
What does the keyword while
signify in the loop?
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The statement i = i + 1
is only executed when the condition i<5
is true.
The statement i = i + 1
is only executed when the condition i<5
is true.
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What is the purpose of introducing i = 1
at the beginning of the loop?
What is the purpose of introducing i = 1
at the beginning of the loop?
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The i
value is increased at the beginning of each turn.
The i
value is increased at the beginning of each turn.
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What is the main task of the loop?
What is the main task of the loop?
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The loop will end when the value of i
becomes greater than 4.
The loop will end when the value of i
becomes greater than 4.
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What is the purpose of the code V[i] = TextWindow.Read()
? What does it do?
What is the purpose of the code V[i] = TextWindow.Read()
? What does it do?
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In this loop, cell 1 is processed before cell 2.
In this loop, cell 1 is processed before cell 2.
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What does the variable i
represent in the code?
What does the variable i
represent in the code?
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If the user types the value 5 into the keyboard then the loop assigns the value 5 into cell V[1]
If the user types the value 5 into the keyboard then the loop assigns the value 5 into cell V[1]
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The loop will continue until the i
value reaches 5.
The loop will continue until the i
value reaches 5.
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What is the purpose of the code i = i + 1
in the loop?
What is the purpose of the code i = i + 1
in the loop?
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The code TextWindow.WriteLine(i + 1 + " of the list")
will display the index number of the cell being processed on each line.
The code TextWindow.WriteLine(i + 1 + " of the list")
will display the index number of the cell being processed on each line.
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The assignment of the variable i
is done outside the loop.
The assignment of the variable i
is done outside the loop.
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The loop is executed 4 times
The loop is executed 4 times
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What is the purpose of TextWindow.WriteLine
in the context of the code snippet provided?
What is the purpose of TextWindow.WriteLine
in the context of the code snippet provided?
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The loop will process every cell in the list once and only once.
The loop will process every cell in the list once and only once.
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The loop will end when the i
value reaches the last cell of the list.
The loop will end when the i
value reaches the last cell of the list.
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What is the purpose of using a variable i
as a counter in this loop?
What is the purpose of using a variable i
as a counter in this loop?
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What is the purpose of the conditional statement while i<5
in the loop?
What is the purpose of the conditional statement while i<5
in the loop?
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The code will display the value of i
on each line.
The code will display the value of i
on each line.
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Each time cell V[i] is assigned a new value, the value of i
is increased by one.
Each time cell V[i] is assigned a new value, the value of i
is increased by one.
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What is the purpose of the code while i < 5
?
What is the purpose of the code while i < 5
?
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What is the purpose of the assignment statement i = i + 1
located inside the loop? How does it work?
What is the purpose of the assignment statement i = i + 1
located inside the loop? How does it work?
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The variable i
is used to keep track of the current cell being processed within the list.
The variable i
is used to keep track of the current cell being processed within the list.
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The i
value is increased by 1 after processing a cell.
The i
value is increased by 1 after processing a cell.
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What is the purpose of the loop? What is its main task?
What is the purpose of the loop? What is its main task?
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Each time the loop executes, the code TextWindow.WriteLine(i + 1 + " of the list")
displays the current index of the cell on the screen.
Each time the loop executes, the code TextWindow.WriteLine(i + 1 + " of the list")
displays the current index of the cell on the screen.
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The loop begins by assigning the value of i
to 1.
The loop begins by assigning the value of i
to 1.
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The value of i
increases after each iteration of the loop.
The value of i
increases after each iteration of the loop.
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What is the purpose of the loop in the context of the code snippet provided?
What is the purpose of the loop in the context of the code snippet provided?
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The condition i < 5
in the while
statement determines if the loop should continue to run or stop.
The condition i < 5
in the while
statement determines if the loop should continue to run or stop.
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The loop will end after processing the fifth cell in the list.
The loop will end after processing the fifth cell in the list.
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The value of i
is increased after a specific number of turns, not after each turn.
The value of i
is increased after a specific number of turns, not after each turn.
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The loop assigns a value from the keyboard to each cell in the list.
The loop assigns a value from the keyboard to each cell in the list.
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What is the purpose of the code V[i] = TextWindow.Read()
in the context of the provided loop? What does it actually do?
What is the purpose of the code V[i] = TextWindow.Read()
in the context of the provided loop? What does it actually do?
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The loop is executed until the value of i
is equal to 5.
The loop is executed until the value of i
is equal to 5.
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The loop will ensure that each cell in the list receives a value from the keyboard.
The loop will ensure that each cell in the list receives a value from the keyboard.
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What is the purpose of the code while i < 5
in this context? What does it control?
What is the purpose of the code while i < 5
in this context? What does it control?
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The loop will assign a value from the keyboard to cell V[5]
one and only one time.
The loop will assign a value from the keyboard to cell V[5]
one and only one time.
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The while
loop ensures that the code within its block is executed repeatedly until a specific condition is met.
The while
loop ensures that the code within its block is executed repeatedly until a specific condition is met.
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Study Notes
Manipulating a List
- Lists can be filled, searched, and modified
- Filling a list often uses loops
- Example:
- Counter
i
initialized to 1 - Loop runs until
i
is less than or equal to 5 - Prompts user to enter value for cell
v[i]
- Increments
i
after each input
- Counter
- Displaying list content
- Loop runs until
i
is less than or equal to 5 - Displays the value of
v[i]
for eachi
- Loop runs until
- In a loop, counter
i
acts as both a counter of the loop and a pointer for cells in the listv
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Description
This quiz covers the fundamental concepts of manipulating lists in programming, including how to fill, search, and modify them. It includes examples of using loops to prompt for user input and display list contents. Test your understanding of list operations and indexing.