IDE function: run-time environment
Name:
Date:
Class:
A
Quick Questions
Shade in the A or B circle for each question.
1. Which statement best describes the run-time environment of an IDE?
2. A student clicks the run button in the IDE. What happens?
3. Where does a program's printed output usually appear in an IDE?
4. A program asks the user to type their age. How can a student test it inside the IDE?
5. What does stepping through code let a programmer do?
B
Match the Pairs
Draw a line connecting each item on the left to its match on the right.
| Left column | Right column | |
|---|---|---|
| 1Run button | AShows the program's output and lets the programmer type in test input while it runs | |
| 2Console window | BThe run-time environment lets you run the program inside the IDE, so you do not need to leave it. | |
| 3The run-time environment lets a programmer enter test input and check the program reacts correctly, without leaving the IDE | CStarts the program from inside the IDE so the programmer can see it work straight away | |
| 4The run-time environment can step through code one line at a time so the programmer can watch the program run | DThis describes error diagnostics, not the run-time environment. The run-time environment runs the program and shows its input and output. | |
| 5To test my program I must close the IDE and run it in a separate application | EStep 1: total = 0 | Step 2: total = total + 5 | |
| 6The run-time environment is the part of the IDE that underlines syntax errors as you type | Fage = int(input("Age: ")) |
C
Definitions
run-time environment
D
Fill in the Blanks
Complete each line of code by filling in the missing parts.
1.
name = _____("Enter name: ")
print("Hello " + name)
2.
total = 5 + 3
_____(total)
3.
age = ___(input("Age: "))
print(age + 1)
4.
x = 1
x = x _ 1 # step: watch x become 2
print(x)
5.
# Press the ___ button to start
print("Hello")
E
Spot the Error
Shade in the letter of the line that contains an error.
Question 1
A
name = input("Name: ")
B
age = int(input("Age: "))
C
print("Hi" name)
D
print(age + 1)
Question 2
A
num = int(input("Number: ")
B
total = num * 2
C
print("Double:", total)
Question 3
A
for i in range(3)
B
print("Step", i)
C
print("Done")
Question 4
A
total = 0
B
for n in [2, 4, 6]:
C
total = total + n
D
print("Total:", totl)
Question 5
A
score = int(input("Score: "))
B
if score >= 50:
C
print("Pass")
D
else
E
print("Fail")
Answer Key
IDE function: run-time environment
Section A: Quick Questions
Q1
B — It lets you run your program and see its input and output without leaving the IDE
Q2
A — The program starts running inside the IDE
Q3
A — In the output window or console
Q4
B — Type test input into the console while the program runs
Q5
A — Run the program one line at a time and watch what happens
Section B: Match the Pairs
Q1
Run button → Starts the program from inside the IDE so the programmer can see it work straight away
Q2
Console window → Shows the program's output and lets the programmer type in test input while it runs
Q3
The run-time environment lets a programmer enter test input and check the program reacts correctly, without leaving the IDE → age = int(input("Age: "))
Q4
The run-time environment can step through code one line at a time so the programmer can watch the program run → Step 1: total = 0 | Step 2: total = total + 5
Q5
To test my program I must close the IDE and run it in a separate application → The run-time environment lets you run the program inside the IDE, so you do not need to leave it.
Q6
The run-time environment is the part of the IDE that underlines syntax errors as you type → This describes error diagnostics, not the run-time environment. The run-time environment runs the program and shows its input and output.
Section C: Definitions
Q1
run-time environment — An IDE feature that lets you run your program and see it work, including its input and output, without leaving the IDE. It has a run button, a console and can step through code.Section D: Fill in the Blanks
Q1
name = input("Enter name: ")
print("Hello " + name)Q2
total = 5 + 3
print(total)Q3
age = int(input("Age: "))
print(age + 1)Q4
x = 1
x = x + 1 # step: watch x become 2
print(x)Q5
# Press the Run button to start
print("Hello")Section E: Spot the Error
Q1
C — There is a comma missing between "Hi" and name. When you press Run, the console shows a syntax error. It should be print("Hi", name).
Q2
A — The closing bracket of int( is missing, so the program will not run and the console reports a syntax error. It should end with two closing brackets: )).
Q3
A — A for loop header needs a colon at the end. Without it the IDE cannot run or step through the loop. It should be for i in range(3):
Q4
D — The variable name is misspelt. The program starts running, then the console shows a run-time NameError because totl does not exist. It should be total.
Q5
D — The else keyword needs a colon after it. Running the program in the IDE would show a syntax error in the console. It should be else: