Integers
Integers are numbers without decimals. X++ has two integer types:

int, which is 32 bits wide

int64, which is 64 bits wide
Integers are used especially as control variables in repetitive statements or as indexes in arrays.
integer declaration 
= 
int  int64Variable{ ,Variable} ; 
variable 
= 
identifier [ option ] 
option 
= 
// Declaration of an integer variable, i int i; // Declaration of two int64 variables int64 i1, i2; // An integer variable is initialized to the value 100 int i3 = 100; // Declaration of a dynamic array of integers int i4[];
Caution 

If you try to assign the largest integer plus 1 to an int64, you will get the wrong result. This is because it is interpreted as a 32bit number, and therefore the number is wrapped round and stored as 2,147,483,647 instead. To prevent this, add a "u" to the end of the number, for example: int64 i = 0x8000 0000u (0x8000 0000 is 2,147,483,648). 
Integers can be used in all expressions, and relational operators and arithmetic operators can be applied. For example:
void element() { // Two integer variables are declared and initialized int i = 1, j = 2; ; // j is assigned the result of j + ((i + i) DIV 2) j +=(i + i) div 2; // This results in: j=3 if (j>2) { print "J is greater than 2"; } else { print "J is NOT greater than 2"; } }
Keywords 
int, int64 
Size 
32 bits or 64 bits 
Scope of data type 
[2.147.483.648; 2.147.483.647] or [9,223,372,036,854,775,808 ; 9,223,372,036,854,775,808] 
Default value 
0 
Implicit conversions 
Automatically converted to real, boolean, and enum 
Explicit conversions 
str2int, int2str, str2int64, int642str 