How to swap two numbers without using temp variable ? Java c c++

[dopeobama]

can u guys help me with this i'm new on programming numbers


"
int a = 10;
int b = 20;

System.out.println("value of a and b before swapping, a: " + a +" b: " + b);

//swapping value of two numbers without using temp variable
int a = 10;
int b = 20;

System.out.println("value of a and b before swapping, a: " + a +" b: " + b);

//swapping value of two numbers without using temp variable "

 

[Anas Elallali]

If you are using variables of type Int :
a = a + b
b = a - b // b = a
a = a - b