use math.random to generate license plate numbers

[ard9232]

I"m really really confused on how to do this problem. I need to use math.random and type-casting to print out 20 license plates but I'm just really lost. Can anyone help me out?


Use Java’s type-casting mechanism to write a program that prints 20
“random” license plate numbers, each one consisting of three randomly-
chosen digits followed by three randomly chosen upper-case letters. The
first digit cannot be zero.

[r035198x]

Start by writing down your algorithm then.

[JosAH]

The Random class has a bit more convenient methods than the Math class
but it doesn't matter much; try to come up with a way to generate a number in
the interval [n,m) and most of the job is done.

kind regards,

Jos

[BigDaddyLH]

Another hint: one way to choose a character from a sequence of characters is to start with a String containing those characters and then randomly select the index of a character in that string:
[CODE=Java]
String vowels = "aeiouy";
int index = ...
char selected = ...
[/CODE]

[Gangreen]

also add your already generated plates to an arraylist, and check with each new plate it doesn't already exists, so you're sure you won't have two identical plates.

[JosAH]

also add your already generated plates to an arraylist, and check with each new plate it doesn't already exists, so you're sure you won't have two identical plates.

Better add them to a Set then ...

kind regards,

Jos