Just4Fun - play with PreIncrement and PostIncrement in C#
Pre-Increment and Post-Increment are used frequently in conditions for loops.
Here we are playing a calculation game with Post-Increment and Pre-Increment.
Example 1:
int i = 10;
Console.WriteLine(i++); //=> 10
Console.WriteLine(i); //=> 11
Example 2:
int i = 10;
Console.WriteLine(++i); //=> 11
Console.WriteLine(i); //=> 11
Example 3:
int i = 10;
Console.WriteLine(i--); //=> 10
Console.WriteLine(i); //=> 9
Example 4:
int i = 10;
Console.WriteLine(--i); //=> 9
Console.WriteLine(i); //=> 9
Example 5:
int i = 5;
var result1 = i++ + ++i;
Console.WriteLine(string.Format("i=5; i++ + ++i result is : '{0}'", result1)); //=> 12
i = 5;
var result2 = ++i + i++;
Console.WriteLine(string.Format("i=5; ++i + i++ result is : '{0}'", result2)); //=> 12
i = 5;
var result3 = i++ - ++i;
Console.WriteLine(string.Format("i=5; i++ - ++i result is : '{0}'", result3)); //=> -2
i = 5;
var result4 = ++i - ++i;
Console.WriteLine(string.Format("i=5; ++i - ++i result is : '{0}'", result4)); //=> -1
i = 5;
var result5 = ++i - i++;
Console.WriteLine(string.Format("i=5; ++i - i++ result is : '{0}'", result5)); //=> 0
i = 5;
var result6 = i++ + i++;
Console.WriteLine(string.Format("i=5; i++ + i++ result is : '{0}'", result6)); //=> 11
Example 6:
int i = 5;
var result1 = i-- + --i;
Console.WriteLine(string.Format("i=5; i-- + --i result is : '{0}'", result1)); //=> 8
i = 5;
var result2 = --i + i--;
Console.WriteLine(string.Format("i=5; --i + i-- result is : '{0}'", result2)); //=> 8
i = 5;
var result3 = i-- - --i;
Console.WriteLine(string.Format("i=5; i-- - --i result is : '{0}'", result3)); //=> 2
i = 5;
var result4 = --i - --i;
Console.WriteLine(string.Format("i=5; --i - --i result is : '{0}'", result4)); //=> 1
i = 5;
var result5 = --i - i--;
Console.WriteLine(string.Format("i=5; --i - i-- result is : '{0}'", result5)); //=> 0
i = 5;
var result6 = i-- + i--;
Console.WriteLine(string.Format("i=5; i-- + i-- result is : '{0}'", result6)); //=> 9
