Commit aa575d6

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Added OOP and modules changes

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+65

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+65

-6

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Lines changed: 15 additions & 6 deletions

Original file line number	Diff line number	Diff line change
`@@ -3,14 +3,14 @@ class Student:`
`3`	`3`	`year = 1`
`4`	`4`	`num_of_students = 0`
`5`	`5`
`6`		`- def __init__(self, first, last, email):`
	`6`	`+ def __init__(self, first, last, email):# Costruttore self è la referenza all'oggetto stesso (this di Java)`
`7`	`7`	`self.first = first`
`8`	`8`	`self.last = last`
`9`	`9`	`self.email = email`
`10`	`10`	`Student.num_of_students += 1`
`11`	`11`
`12`		`- def fullname(self):`
`13`		`- return '{} {}'.format(self.first, self.last)`
	`12`	`+ def fullname(self):# Metodo`
	`13`	`+ return '{} {}'.format(self.first, self.last)# self MUST be used`
`14`	`14`
`15`	`15`	`s1 = Student('Alessandro', 'Versace', 'aleversace98@gmail.com')`
`16`	`16`	`s2 = Student('Me', "NotMe", "menotme@gmail.com")`
`@@ -22,10 +22,19 @@ def fullname(self):`
`22`	`22`	`print('\n')`
`23`	`23`
`24`	`24`	`print(Student.__dict__)`
`25`		`-s1.year = 2`
`26`	`25`	`print('\n')`
`27`	`26`
`28`		`-print(s1.__dict__)`
	`27`	`+s1.year = 2`
	`28`	`+print(s1.__dict__)`
`29`	`29`	`print('\n')`
`30`	`30`
`31`		`-print(Student.num_of_students)`
	`31`	`+print(Student.num_of_students)`
	`32`	`+`
	`33`	`+# Interfaces: methods with "visibility" outside the object.`
	`34`	`+`
	`35`	`+# Encapsulation: restrict access of some components (Then we can control access with methods ie. get() and set())`
	`36`	`+`
	`37`	`+# Inheritance: Sub-Classes inherit attributes and methods from their "parents" Classes (Super Classes).`
	`38`	`+# A Super class, B sub-class -> We say "B extends A".`
	`39`	`+# Can be single or multiple.`
	`40`	`+`

Lines changed: 13 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,13 @@`
	`1`	`+### EXCEPTIONS`
	`2`	`+`
	`3`	`+x = -1`
	`4`	`+# Handling`
	`5`	`+try:`
	`6`	`+ if x < 0:`
	`7`	`+ raise ValueError("Negative amount") # Launch`
	`8`	`+except ValueError:`
	`9`	`+ print("Value Error")`
	`10`	`+except:`
	`11`	`+ print("An exception occurred")`
	`12`	`+else:`
	`13`	`+ print("Nothing went wrong")`

Lines changed: 24 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,24 @@`
	`1`	`+class Point:`
	`2`	`+`
	`3`	`+ def __init__(self, name, x, y):`
	`4`	`+ self.name = name # Public Access from everywhere.`
	`5`	`+ self._x = x # _ Protected Access from inside or from sub-classes or proprial methods.`
	`6`	`+ self.__y = y # __ Private Access just with proprial methods.`
	`7`	`+`
	`8`	`+ def getY(self):`
	`9`	`+ return self.__y`
	`10`	`+`
	`11`	`+ def setXY(self, x, y):`
	`12`	`+ self._x = x`
	`13`	`+ self.__y = y`
	`14`	`+`
	`15`	`+ def printXY(self):`
	`16`	`+ print('x = {}, y = {}'.format(self._x, self.__y))`
	`17`	`+`
	`18`	`+p1 = Point("uno", 1, 1)`
	`19`	`+print(p1.name)`
	`20`	`+# print(p1.x) WRONG We have to use implement proper method!`
	`21`	`+# print(p1.y) WRONG Same here`
	`22`	`+p1.printXY()`
	`23`	`+`
	`24`	`+`

Lines changed: 13 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,13 @@`
	`1`	`+from point import *`
	`2`	`+`
	`3`	`+class Point3D(Point): # With multiple inheritance and conflicts, wins the lefter ones.`
	`4`	`+ _z = 0`
	`5`	`+ def __init__(self, x, y, z):`
	`6`	`+ Point.__init__(self, 'Broo', x, y)`
	`7`	`+ self._z = z`
	`8`	`+`
	`9`	`+ def describe(self):`
	`10`	`+ return 'Point3d name:{} ({}, {}, {})'.format(self.name, self._x, self.getY(), self._z)`
	`11`	`+`
	`12`	`+p1 = Point3D(1, 2, 3)`
	`13`	`+print(p1.describe())`

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