PCEP Controlling loop execution 4

Question 1

What is the output of:
```python
for i in range(1, 6):
    if i == 4:
        break
else:
    print('done')
print(i)
```

Accepted Answer

4

Answer

The `break` at i==4 skips the `else` clause, and then `print(i)` outside prints 4.

Question 2

What keyword is used to immediately jump to the next loop iteration in Python?

Accepted Answer

continue

Answer

`continue` transfers control to the next iteration of the enclosing loop.

Question 3

How many times does 'hello' print?
```python
for i in range(10):
    if i > 2:
        break
    print('hello')
```

Accepted Answer

3

Answer

The loop prints 'hello' when i is 0, 1, and 2; at i==3 the `break` fires, giving 3 prints.

Question 4

What is the result of:
```python
count = 0
for _ in range(5):
    pass
    count += 1
print(count)
```

Accepted Answer

5

Answer

`pass` does nothing, so `count += 1` executes for all 5 iterations, giving count == 5.

Question 5

In a `while` loop, where must the `break` or `continue` statement appear?

Accepted Answer

Anywhere inside the loop body

Answer

`break` and `continue` can appear anywhere within the loop body, typically inside a conditional.

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