10 Data Types And Structures

Question 1

What is a data type

Answer 1

formal classification of the type of data being stored or manipulated within a program

Question 2

What are the 6 data types

Answer 2

Integer = a whole number, float/real = a decimal number, Boolean = data that has states (true and false), char = a symbol, letter or digit, String = a word, null = nothing. These values differ from language to language

Question 3

What is a record

Answer 3

A record is like a list of data but each piece of data differs in type. E.g a record could consist of string data,integers or float numbers

Question 4

What is a record array

Answer 4

A method of storing many records made of the same veriables

Question 5

What is an array

Answer 5

An array is a data structure which holds data that is of the same type

Question 6

What is a 1D array

Answer 6

An array that only consists of 1 row of data and is one dimensional, like a list

Question 7

What is a 2D array

Answer 7

An array that acts as a matrix/table and is 2 dimensional, it stores 2 data parameters rather then 1

Question 8

What is required to create a 1D array

Answer 8

1. Needs an identifier/ an array name. 2. The amount of items in the array. 3. The postions of each item in the array