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ICM class 4. Functions and Objects. Functions. Modularity. Functions. Modularity Reusability. Functions. Functions. ReturnType functionName (arguments){ } OutputType functionName (Input){ return output; }. Functions. int square(int number){ return number * number; }. Functions. - PowerPoint PPT Presentation
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ICM class 4
Functions and Objects
Functions
• Modularity
Functions
• Modularity• Reusability
Functions
Functions
ReturnType functionName (arguments){
} OutputType functionName (Input){
return output;}
Functions
int square(int number){return number * number;
}
Functions
Setup and draw… void
Objects – Part 1
• Encapsulation• Modularity
Encapsulation
• An object is a bundle of variables, statements and functions
Encapsulation
Encapsulation
class Car{//declare propertiesCar(){
//init properties}//declare more methods
}
Encapsulation
Car car1;void setup(){
car1 = new Car();}void draw(){
car1.doSomething();}
Encapsulation
• Lets try it together
Encapsulation
Makes it easy to have more than 1
Encapsulation
• Conceals the functional details
Modularity
• Independent components
Objects – Part 2
• Inheritance• Overloading
Inheritance
• Animals, cats and dogs… and elephants and giraffes, and goldfish!
Inheritance
class Animal{Animal(){}
}class Cat extends Animal {
Cat(){super();
}}
Overloading
• Same function name + different arguments• Ie. fill(255);• fill(255,123,0);• fill(255,123,0,115);
Why OOP
• Easier updating• Easier debugging• Easier sharing• Reusable maintainable code