- What is double data type in C?
- What is difference between long and double?
- Why size of pointer is 8 bytes?
- What is long double data type?
- Is there long double in Java?
- What is double data type example?
- How many digits double data type can hold?
- Why int is 2 or 4 bytes?
- Is float and double same?
- What is the size of long double?
- What is bigger than long long int?
- How many bytes is a word?
- What is double data type?
- Which primitive type can hold the largest value?

## What is double data type in C?

A double type variable is a 64-bit floating data type C, C++, C# and many other programming languages recognize the double as a type.

A double type can represent fractional as well as whole values.

It can contain up to 15 digits in total, including those before and after the decimal point..

## What is difference between long and double?

The main difference between long and double in Java is that long is a data type that stores 64 bit two’s complement integer while double is a data type that stores double prevision 64 bit IEEE 754 floating point. In brief, long is an integral type whereas double is a floating point type.

## Why size of pointer is 8 bytes?

The 8-byte count taken up by pointers is crucially exclusive to 64-bit machines, and for a reason – 8 bytes is the largest possible address size available on that architecture. Since one byte is equal to eight bits, 64 bits / 8 = 8 represents the size of a pointer.

## What is long double data type?

In C and related programming languages, long double refers to a floating-point data type that is often more precise than double precision though the language standard only requires it to be at least as precise as double . As with C’s other floating-point types, it may not necessarily map to an IEEE format.

## Is there long double in Java?

I found the range of long double is more than that of double in java. For very huge number we can use long double in C. … double in java takes 8 bytes(64 bits) IEEE 754. it Covers a range from 4.94065645841246544e-324d to 1.79769313486231570e+308d (positive or negative).

## What is double data type example?

A double precision floating-point data type used in CREATE TABLE and ALTER TABLE statements. You can use exponential notation in DOUBLE literals or when casting from STRING , for example 1.0e6 to represent one million. …

## How many digits double data type can hold?

Floating point data typesData TypeSize*Significant Digitsfloat4 bytes7double8 bytes16long double8 bytes16

## Why int is 2 or 4 bytes?

The size of an int is really compiler dependent. Back in the day, when processors were 16 bit, an int was 2 bytes. Nowadays, it’s most often 4 bytes on a 32-bit as well as 64-bit systems. Still, using sizeof(int) is the best way to get the size of an integer for the specific system the program is executed on.

## Is float and double same?

The Decimal, Double, and Float variable types are different in the way that they store the values. Precision is the main difference where float is a single precision (32 bit) floating point data type, double is a double precision (64 bit) floating point data type and decimal is a 128-bit floating point data type.

## What is the size of long double?

Data Types and SizesType Name32–bit Size64–bit Sizefloat4 bytes4 bytesdouble8 bytes8 byteslong double16 bytes16 bytes

## What is bigger than long long int?

A double or long double can typically represent numbers with larger magnitudes than a long long , but often with less precision (e.g., frequently 53 bits vs., 63 bits for a long long). If you want a larger integer type, you’ll typically want to use a library.

## How many bytes is a word?

2 bytesData structures containing such different sized words refer to them as WORD (16 bits/2 bytes), DWORD (32 bits/4 bytes) and QWORD (64 bits/8 bytes) respectively.

## What is double data type?

double: The double data type is a double-precision 64-bit IEEE 754 floating point. … This data type represents one bit of information, but its “size” isn’t something that’s precisely defined. char: The char data type is a single 16-bit Unicode character.

## Which primitive type can hold the largest value?

The biggest integer type is the ulong type. It is a 64-bit unsigned type, which has as a default value the number 0u, or 0U (the two are equivalent).