Understanding Loops in Pascal

What is the basic structure of a For loop in Pascal?

• for variable = start_value to end_value;

• for variable := start_value to end_value do { ... }

• for (variable in start_value..end_value) do;

• for variable := start_value to end_value do begin ... end;

How do you declare a variable for a While loop in Pascal?

• integer i: var;

• i: integer var;

• var i: real;

• var i: integer;

What is the purpose of the Repeat Until loop in Pascal?

• To execute a block of code in a random order.

• To execute a block of code only once regardless of the condition.

• To run a block of code as long as a condition is true.

• To execute a block of code repeatedly until a condition is true.

Can you explain how nested loops work in Pascal?

• Nested loops in Pascal can only be used for single-dimensional arrays.

• Nested loops in Pascal require a specific number of iterations for each loop.

• Nested loops in Pascal cannot be used with conditional statements.

• Nested loops in Pascal allow for iterating over multi-dimensional structures by placing one loop inside another.

What is the syntax for a For loop that counts from 1 to 10?

• for (int i = 1; i <= 10; i++) {}

• for (int i = 0; i < 10; i++) {}

• for (int i = 1; i <= 9; i++) {}

• for (i = 1; i < 10; i++) {}

How does a While loop differ from a For loop in Pascal?

• A While loop is used for a specific number of iterations, while a For loop checks a condition before each iteration.

• A While loop requires an increment statement, while a For loop does not.

• A While loop can only be used with numeric data types, while a For loop can handle any data type.

• A While loop checks a condition before each iteration, while a For loop is used for a specific number of iterations defined by initialization, condition, and increment.

What happens if the condition in a Repeat Until loop is never met?

• The loop will run indefinitely.

• The loop will run until a specific time limit is reached.

• The loop will execute once and then terminate.

• The loop will stop after a fixed number of iterations.

Provide an example of a nested loop in Pascal.

• for j := 1 to 3 do begin writeln(j); end;

• for i := 1 to 2 do for j := 1 to 1 do writeln('Only i = ', i);

• for i := 1 to 5 do writeln(i);

• for i := 1 to 3 do begin for j := 1 to 2 do begin writeln('i = ', i, ', j = ', j); end; end;

What is the function of the Break statement in loops?

• The Break statement terminates the loop execution.

• The Break statement continues to the next loop iteration.

• The Break statement skips the current iteration of the loop.

• The Break statement pauses the loop execution.

How can you use the Continue statement in a For loop?

• You can use the Continue statement to pause the For loop temporarily.

• You can use the Continue statement to skip the current iteration in a For loop.

• The Continue statement is used to restart the For loop from the beginning.

• You can use the Continue statement to end the For loop.