J has not changed. The calculation method is as follows: take the value stored in J into the register and store it in floating-point format, then change the format of the value in the register to integer data, and finally store the integer data in the register in X, which is the same as x= 1.5; Or x = (int)1.5; The process is similar.

So the type of j variable will not change, and it is still a real variable.