Efficient Variable Swapping: Swap Two Variables Without a Temporary

Variable Swap: How to swap two variables without a temporary variable

The following is a method of directly changing the values of variables 'a' and 'b' without using a temporary variable. This example is written in JAVA, but as most languages support bitwise operations, using this method can reduce unnecessary variable declarations and potentially improve performance.

/*How to swap 'a' and 'b' without a temporary variable.
※^ operator (exclusive - returns true only when different)*/
int a = 1; // 0000 0001
int b = 2; // 0000 0010 
a = a ^ b; // 0000 0001 ^ 0000 0010 =  	//Result : a=2, b=1;

However, for readability, it might be better to just use a temporary variable.