Develop Code
Muhtasari
Getting a program to run is only the first hurdle. A program that produces the right answer for one test case, crashes on the next, and is unreadable to anyone but the person who wrote it, is not finished. Developing code properly means writing it clearly, testing it deliberately, and knowing exactly how to read the error messages Python gives you when something goes wrong.
This lesson covers the whole development cycle examined on both papers: writing readable Python, telling syntax, runtime and logic errors apart, designing a proper test plan, using trace tables to hunt down a bug, and judging a finished program's strengths and weaknesses. Every example uses Python, one of the three languages, alongside C# and Java, permitted for the Paper 2 practical exam.
Malengo
- Be able to write programs in a high-level programming language
- Understand the benefit of producing programs that are easy to read and be able to use techniques (comments, descriptive names, indentation) to improve readability and to explain how the code works
- Be able to differentiate between types of error in programs (logic, syntax, runtime)
- Be able to design and use test plans and test data (normal, boundary, erroneous)
- Be able to interpret error messages and identify, locate and fix errors in a program
- Be able to determine what value a variable will hold at a given point in a program (trace table)
- Be able to determine the strengths and weaknesses of a program and suggest improvements
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 Develop Code. 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 type of error prevents a program from running at all? A) Logic error B) Runtime error C) Syntax error D) Boundary error Answer: C
- A program runs without crashing but consistently produces the wrong output. What type of error is this? A) Syntax error B) Runtime error C) Logic error D) Compilation error Answer: C
- Which category of test data checks the exact edge of a valid range? A) Normal data B) Boundary data C) Erroneous data D) Random data Answer: B
- A function tries to access index 10 of a list that only has 5 items. What type of error does this cause? A) Syntax error B) Runtime error C) Logic error D) No error, this is valid Answer: B
- Which of these is a readability technique that does NOT change what a program computes? A) Using descriptive variable names B) Adding a missing loop C) Changing the algorithm used D) Adding an extra test case Answer: A
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 Develop Code? 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.
