Expression - code that is evaluated ... away data'. Java does automatic type-casting when a math operator has operands of 2 different data-types, it will convert a smaller data-type to a larger ...

整数类型：byte(1 byte), short(2 bytes), int(4 bytes), long(8 bytes) 浮点类型：float(4 bytes), double(8 bytes) 字符类型：char(2 bytes) 布尔类型：boolean Instead, expressions in the Java programming language that operate ...

intended for those who have some experience in coding and familiarity with programming concepts but are new to the Java language. Java supports eight primitive types of variables: byte, short, int, ...