🍈 Zettelkasten

https://www.w3schools.com/java/java_type_casting.asp Is a method used to convert data types to other datatypes. Similar to Parsing and Serialization

Widening(Implicit/Automatic)

int y = 0;
double x = y; // implicit casting

when you just reinitialize the variable

double x = 10.5;
int y = (int)x;

you manually type the data point before the variable

When you turn a Child object into a Parent object done automatically when you

Person p;
p = new Student("hink",19231); // casted to Person

Casts to parent, so calling child methods are not possible.

When you cast a parent object into a child object

Person s;
Student q = (Student)s; // turn Person into Student