the answer is 2, but alot of refferrees will overlook 3 step
After catching the basketball in the air, the player has the ability to take two steps. After two steps, the player must stop. He/she may rotate on a pivot foot or may move freely, as long as they stop after catching the basketball in the air.This is assuming that by catch the player catches the ball with 2 hands, as if they control the ball with one hand, they don't have to stop at all.
Assuming you mean in basketball i am pretty sure that the amount of time you can step is 2
If you read the rule book and then watch an NBA game, you will quickly notice that there is no such violation anymore. a walk in basketball is technically speaking a 'travel'. When the person with the ball starts walking/running without first putting the ball to the floor.
Only one hand is to be on the ball when it is being dribbled
Handling is just basically dribbling the ball and protecting it from the defender. There are many moves that you can do to try and get around them. Some are crossovers, in and out, behind the back and many more....
Your not allowed to step with the ball at all. Or elseyou will get pulled up for stepping.