A simple use case is given of calculator is given.
step 1: Input 2 Numbers in Entity 1 & Entity 2.
step 2: Take entity 3 & check
if Entity 3 =1, perform addition,
if Entity 3= 2, perform subtraction,
if Entity 3= 3, perform multiply,
if Entity 3=4, perform divide
if entity 3= 5, end of dialog
Step 3: after performing any operation, go to step 2 & ask for the Entity 3 input.
Here in this case, once all nodes perform operation, but after step 3, when control goes step 2, it automatically reads the previously entered value.
How we can give the new value to Entity 3 in every loop?