Develop Code
Akopọ
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.
Awọn Afojusun
- 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
Akọ̀wé Ẹ̀kọ́
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
Ìdánwò Ẹ̀kọ́
Oriire fun ipari ẹkọ lori Develop Code. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.
Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.
Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.
- 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
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
Awọn Iwe Itọsọna Ti a Gba Nimọran
Ṣe Adaṣe Awọn Ibeere Idanwo Adaṣe
Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Develop Code? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.
Ṣe igbasilẹ ohun elo naa lori Google Playstore
Gbogbo ohun ti o nilo lati ṣe dara julọ ninu JAMB, WAEC ati NECO.
