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5 Cards in this Set
- Front
- Back
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What is an array? |
A structure of fixed size which can hold items of the same data type. |
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Is random access possible in an array? |
Yes, because they are indexed. |
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What operations can be performed on an array? |
Traverse: go through elements and print them Search: search for an element in an array. You can search the element by its value or index. Update: update the value of an existing element at a given index |
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Can you insert into an array? |
Yes but not straight away as arrays are fixed in size. If you want to insert an element you need to first create a new array with increased size, copy the existing elements, then add the new element. Same goes with deletion but you create an array with reduced size. |
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What are arrays used for? |
- used as the building blocks to build other data structures such as array lists, heaps, hash tables, vectors and matrices - used for different sorting algorithms such as insertion sort, quick sort, bubble sort and merge sort |
