What is the difference between type casting and type conversion in C++ or Java?

Question

What is the difference between typecasting and typeconversion in C++ or Java ?

Answer 1

According to the Wikipedia article:

"In the C family of languages, the word cast typically refers to an explicit type conversion (as opposed to an implicit conversion), regardless of whether this is a re-interpretaion of a bit-pattern or a real conversion."

Here is a C++ example:

double d = 42.0;
int i = d; // Here you have an implicit conversion from double to int
int j = static_cast(d); // Here you have a cast (explicit conversion).

Here is a Java example (note that in Java unlike C++ you can't implicitly convert from double to int):

int i = 42;
double d = i; // Here you have an implicit conversion from int to double
int j = (int)d; // Here you have a cast (explicit conversion).