ImperativevsReactive.java

// let’s say we have 2 variables
b = 1, c = 1
// and a third which is the sum of both
a := b + c
print(a)  // output wil be “2” (so far, so good)

// now let’s change the value of “c”
c = 2

print(a)
// in imperative programming: the output will be “2” (since "a" is not reassigned)
// in reactive programming: the output will be “3”! (since "a" is reacting to the change of “c”)