1. The calculated expression consists of two operations. When the target type is bool (possibly cv-qualified), the result is false if the original . So To get an int from an addition, you have to use 2 ints. Java - Convert int[] to Integer[] example - Mkyong.com Here it is: Math.toIntExact( value); The best thing about this method is that it controls the length of the converted number, and if the value is too large to fit into an int, it will throw an exception. In the following example, we shall take an integer variable initialized to a hexadecimal representation of 4 bytes. Java allows you to convert this integer representation of 4 bytes into float representation using static method intBitsToFloat () of Float class. I'm trying to understand the integer overflow mechanism, but I don't get it yet. to another data type is known as typecasting. The size of pointers in general are not guaranteed to be anything.A char* could be a different size than an int*.A void* is guaranteed to be castable to other pointer types (AFAICR), so it follows that a void* should be no smaller than the largest of any other type of pointer's significant bits. The object reference forms the this pointer when the function is called. Converting Long to int - Programming Questions - Arduino Forum long int or signed long int data type denotes a 32 - bit signed integer that can hold any value between -2,147,483,648 (-2 31) and 2,147,483,647 (2 31 -1). Since char is a smaller data type compared to int, thus we do not need to do explicit type casting here. Convert int to Long in Java - Scaler Topics An object pointer (including void*) or function pointer can be converted to an integer type using reinterpret_cast. Its working well for 32-bit machine. double -> float -> long -> int -> char -> short -> byte. In any expression, you can always use a value whose type ranks lower than int in place of an operand of type int or unsigned int.You can also use a bit-field as an integer operand (bit-fields are discussed in Chapter 10).In these cases, the compiler applies integer promotion: any operand whose type ranks lower than int is automatically converted to the type int, provided int is capable of .