Learning Java as a C++ Programmer

Primitive Data Types

• char is 16-bit. byte is 8-bit. boolean corresponds to bool in C++.


• All Java primitive types are signed.Why?

Casting

• Java is more strongly typed than C++. No way to convert between boolean and integer types.

Operators

• Java has two new operators, >>> and >>>=. Each of these performs a right shift with zero fill.


• Java operators cannot be overloaded, in order to prevent unnecessary bugs

Struct and union

No struct or union.

Arrays

• Arrays are objects, defined by Type [].


• Out of index accessing causes ArrayIndexOutOfBoundsException exception.

Classes

• Can set default value of class data members


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