Arrays
Muhtasari
Imagine storing the marks of 100 students in 100 separate variables, then trying to add them up. It would be unbearable. An array solves this by holding many values of the same type under a single name, each reachable by a number called its index, so a short loop can sweep through them all.
In this lesson you will learn to declare and use one-dimensional and two-dimensional arrays in the Cambridge pseudocode style, understand why arrays are so useful, and write values into and read values from an array using iteration, with full worked routines you can adapt in the exam.
Malengo
- 1 Declare and use one-dimensional (1D) and two-dimensional (2D) arrays
- 2 Understand the use of arrays
- 3 Write values into, and read values from, an array using iteration
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 Arrays. 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.
- What must be true of all the items stored in one array? A. they must be integers B. they must be the same data type C. they must be strings D. they must be unique Answer: B
- What is used to identify the position of an element in an array? A. its value B. its data type C. its index D. its identifier Answer: C
- Which declaration creates a 1D array of 8 integers indexed 1 to 8? A. DECLARE A : INTEGER B. DECLARE A : ARRAY[1:8] OF INTEGER C. DECLARE A : ARRAY OF 8 D. DECLARE A[8] Answer: B
- Which loop structure is normally used to process every element of a 2D array? A. a single WHILE loop B. a REPEAT loop C. a nested (loop inside a loop) D. no loop is needed Answer: C
- Before adding all elements of an array into a variable Total, Total should first be: A. set to the first element B. set to 0 C. left undeclared D. set to the array length Answer: B
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 Arrays? 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.
