What is the difference between an intentional and flagrant foul? How are they each handled?

severity!!! both receive two shots and the ball nearest spot of foul, flagrant will have an ejection!!!!

As a general statement, the difference is the degree of contact (or the intended degree of contact). They are handled the same way, except that the fouler is ejected for a flagrant foul.

I don't know why, but I always thought a flagrant was a technical, and all techicals go to the division line for a spot throw in. With a flagrant, you don't need 2 technicals to get ejected. Thanks for the help!

Most flagrant fouls happen to be technicals -- that is, they are contact fouls during a dead ball period, or non-contact behavior. (Depending on how you read the rule book, fighting during a live ball might also be a technical foul.)

Fouls are either personal or technical. Within those categories, they can be common, intentional, flagrant, player control, double, ..... (and not every descriptor applies to both categories).