Difference between Int64 and UInt64 in C#
Last Updated :
26 May, 2020
Int64: This Struct is used to represents 64-bit signed integer. The Int64 can store both types of values including negative and positive between the ranges of -9,223,372,036,854,775,808 to +9, 223,372,036,854,775,807
Example :
C#
using System;
using System.Text;
public
class GFG {
static void Main( string [] args) {
Console.WriteLine( "Minimum value of Int64: "
+ Int64.MinValue);
Console.WriteLine( "Maximum value of Int64: "
+ Int64.MaxValue);
Console.WriteLine();
Int64[] arr1 = {-3, 0, 1, 3, 7};
foreach (Int64 i in arr1)
{
Console.WriteLine(i);
}
}
}
|
Output:
Minimum value of Int64: -9223372036854775808
Maximum value of Int64: 9223372036854775807
-3
0
1
3
7
UInt64: This Struct is used to represents 64-bit unsigned integer. The UInt64 can store only positive value only which ranges from 0 to 18,446,744,073,709,551,615.
Example :
C#
using System;
using System.Text;
public class GFG{
static void Main( string [] args)
{
Console.WriteLine( "Minimum value of UInt64: "
+ UInt64.MinValue);
Console.WriteLine( "Maximum value of UInt64: "
+ UInt64.MaxValue);
Console.WriteLine();
UInt64[] arr1 = { 13, 0, 1, 3, 7};
foreach (UInt64 i in arr1)
{
Console.WriteLine(i);
}
}
}
|
Output:
Minimum value of UInt64: 0
Maximum value of UInt64: 18446744073709551615
13
0
1
3
7
Differences between Int64 and UInt64 in C#
Sr.No
|
INT64
|
UINT64
|
1.
|
Int64 is used to represents 64-bit signed integers . |
UInt64 is used to represent 64-bit unsigned integers. |
2.
|
Int64 stands for signed integer. |
UInt64 stands for unsigned integer. |
3.
|
It can store negative and positive integers. |
It can store only positive integers. |
4.
|
It takes 8-bytes space in the memory. |
It also takes 8-bytes space in the memory. |
5.
|
The range of Int64 is from -9223372036854775808 to +9223372036854775807. |
The UInt64 ranges from 0 to 18446744073709551615. |
6.
|
Syntax to declare the Int64 :
Int64 variable_name;
|
Syntax to declare the UInt64:
UInt64 variable_name;
|
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