C Sharp int: Difference between revisions

Latest revision as of 13:10, 19 August 2025

The int class in C Sharp is a data type which can store positive and negative whole numbers in variables.

See Integer for generic information about what integers can represent and how they are represented in memory.

A long in C# is represented by 4 bytes, or 32 bits.

This means it can store integral values from -2,147,483,648 to 2,147,483,647.

For integers that don't fit this range, you can use the C Sharp long data type instead.

int a;
int b = 74;
int c = (int)15.2; // 15

To cast to an int, you can use the casting operator (int) or the Convert.ToInt32 function:

char a = 'A';
int b = (int)a; // 65
int c = Convert.ToChar(a); // 65

This is different to casting to a long, which uses the (long) operator or the Convert.ToInt64 function.

@@ Line 2: / Line 2: @@
 See [[Integer]] for generic information about what integers can represent and how they are represented in [[memory]].
+== Size ==
+A '''long''' in C# is represented by '''4''' [[Byte|bytes]], or '''32''' [[Bit|bits]].
+This means it can store integral values from <code>-2,147,483,648</code> to <code>2,147,483,647</code>.
+For [[Integer|integers]] that don't fit this range, you can use the [[C Sharp long]] data type instead.
 == Example ==
@@ Line 9: / Line 16: @@
 int c = (int)15.2; // 15
 </syntaxhighlight>
+== Casting ==
+To [[Casting|cast]] to an '''int''', you can use the [[C Sharp casting|casting operator]] <code>(int)</code> or the [[C Sharp Convert.ToInt32|Convert.ToInt32]] [[function]]:<syntaxhighlight lang="cs" line="1">
+char a = 'A';
+int b = (int)a; // 65
+int c = Convert.ToChar(a); // 65
+</syntaxhighlight>This is different to casting to a [[C Sharp long|long]], which uses the <code>(long)</code> operator or the [[C Sharp Convert.ToInt64|Convert.ToInt64]] function.