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AP Computer Science Study Guide 2024
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AP Computer Science Study Guide
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AP Computer Science Study GuideInteger - Answer -Variable type that only consists of whole numbers; 32 bits
Boolean - Answer -Variable type that consists of "true" or "false"
Char - Answer -Data type that represents only 1 index of a String
Short - Answer -Like an int, but only uses 16 bits of data and used to save memory space
Long - Answer -Like an int, but has a wider range of number values. Takes 64 bits of data
Double - Answer -Represents decimal numbers with 64 bits of data
Float - Answer -Represents decimal numbers with 32 bits of data; used when memory space used is critical
Byte - Answer -Used to represent integer numbers with only 8 bits of data.
Bubble Sort - Answer -Sorting method where if the n+1 index is greater than n, the two indices are swapped. This is one of the most inefficient sort methods that exist. It's efficiency is O(n^2) in average and worst case scenarios.
Insert Sort - Answer -As sort continues, the newest value is placed into the appropriate spot of whatever has already been sorted. Depending on the scenario, this has good or bad sort times
Selection Sort - Answer -Sorting process where the smallest element is selected from the unsorted array and swapped with the leftmost element, and that element becomes a
part of the sorted array. This process continues moving unsorted array boundary by one
element to the right.
Merge Sort - Answer -Sorting method where an array is broken into smaller and smaller arrays, sorted within the smaller arrays, then the smaller arrays are merged back together.
Interface - Answer -An object type that doesn't have any instance variables or constructors, and is only made up of abstract methods
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