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memorize.ai (lvl 286)

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Section 1

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Why "hide" code?

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Programming

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6 years ago

Date created

Mar 1, 2020

Cards (17)

Section 1

(17 cards)

Why "hide" code?

Front

- Protects from accidental corruption. - makes it easier for others to use code without knowing specifics.

Back

Instantiation

Front

- Instantiation is defining a class object (an object is an instance).

Back

Procedural Prog. vs OOP

Front

- Procedural focuses on functions. - OOP focuses on using "objects" which consist of functions and data. (attributes and actions).

Back

Text files

Front

- Data is converted into characters and sent to the file. - uses: cin >> , (or getline); and cout << . - humans can read (pro and con).

Back

Binary files

Front

- Data is written without any conversion to characters (an exact duplicate of what is in RAM). - uses: read/write. - humans can not read (pro and con). - Only option for images and audio. - Store and search large amounts of data faster and easier.

Back

Encapsulation

Front

- Combining data and code in a single object.

Back

what does it mean to make code "reusable"?

Front

- Code can be used by many people in many applications.

Back

runtime stack

Front

The stack of order of function calls. (call adds function to stack, return removes it from stack)

Back

object vs instance

Front

- They are the same thing...

Back

Array of structs (ex.)

Front

- structName arrayName[size];

Back

Getter

Front

- function that returns private data for use outside the class.

Back

Inheritance

Front

- "Is a" relationship. - A square "IS A" rectangle. - you can substitute the child class for a parent class in functions. - Private stays Private, Protected is shared with derived classes.

Back

Class

Front

- A class is like a blueprint for an object. - consist of functions and data.

Back

Setter

Front

- Function that changes private data withing a class.

Back

Instance data

Front

- Data from a specific object, located inside the class.

Back

Array of pointers to structs (ex.)

Front

- sturctName *arrayName[size];

Back

Aggregation

Front

- "Has a" relationship. - A car "HAS A" engine. - private stays private.

Back