Java wrapper classes tutorial explained
#Java #wrapper #classes
public class Main {
public static void main(String[] args) {
// wrapper class = provides a way to use primitive data types as reference data types
// reference data types contain useful methods
// can be used with collections (ex.ArrayList)
//primitive //wrapper
//--------- //-------
// boolean Boolean
// char Character
// int Integer
// double Double
// autoboxing = the automatic conversion that the Java compiler makes between the primitive types and their corresponding object wrapper classes
// unboxing = the reverse of autoboxing. Automatic conversion of wrapper class to primitive
Boolean a = true;
Character b = '@';
Integer c = 123;
Double d = 3.14;
}
}