Subprograms
Muhtasari
A long program that repeats the same block of code in five different places is fragile: fix a bug in one copy and the other four still carry it. Subprograms solve this by giving a named, reusable block of code a single home, one that any part of the program can call on whenever it is needed.
In this lesson you will learn the difference between procedures and functions, how to pass data into a subprogram using parameters and get data back out using a return value, and how local and global scope decide which parts of a program can see which variables. Every example is written in Python, one of the languages you can use for the Paper 2 practical programming exam.
Malengo
- Understand the benefits of using subprograms and be able to write code that uses user-written and pre-existing (built-in, library) subprograms
- Understand the concept of passing data into and out of subprograms (procedures, functions)
- Be able to create subprograms that use parameters
Maelezo ya Somo
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Tathmini ya Somo
Hongera kwa kukamilisha somo la Subprograms. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- Which keyword does a Python subprogram use to send a value back to the code that called it? A) global B) def C) return D) import Answer: C
- In def add(a, b): return a + b, what are a and b called? A) Arguments B) Parameters C) Return values D) Global variables Answer: B
- Which of these best describes a procedure? A) A subprogram that always returns a numeric value B) A subprogram that carries out a task but does not return a value C) A subprogram that can only be called once D) A built-in Python keyword Answer: B
- A variable is created inside a function using an assignment statement and is never declared global. What is its scope? A) It is global and can be read anywhere B) It is local to that function only C) It exists for the whole program but only after the function is called D) It has no scope in Python Answer: B
- Which statement must appear inside a subprogram before it can change the value of a variable defined outside every subprogram? A) local B) return C) global D) import Answer: C
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Vitabu Vinavyopendekezwa
Fanya Mazoezi ya Maswali ya Majaribio
Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Subprograms? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.
Pakua Programu Kwenye Google Playstore
Kila kitu unachohitaji ili kufaulu katika JAMB, WAEC & NECO.
