形式（类型）（值）的表达式的含义是什么？

Question

I have this line:

lsb = (char) (intNumber & 0xff);

and I'm confused as to why is it written like

name = (type) (value)

What does it exactly mean, or what is the purpose of defining a variable like that?

Answer 1

lsb = (char) (intNumber & 0xff); intNumber has been and -ed with 0x11111111 and subsequently typecast to 8-bit character, hence it finds the least significant byte of a variable.

Answer 2

That is the syntax to typecast a variable eg:

float x = 5.55;
int y = (int)x; // in this case, the casting would have happened implicitly
// or 
printf("%d",(int)x);
// this will display 5

Here by specifying constant/variable will be converted to whatever type you mention inside your first pair of brackets.

Answer 3

该行表示您要强制转换右侧表达式所给出的结果，以使其变为char，以便适合左侧的变量。