How to generate a random hour?

[derok]

how to generate a random hour in Java?

[nspils]

generate a random int [0,24)

[derok]

but how?
can you give an example please?

[nspils]

Something like this will return you an int with a low of 0 and a high of 23:

int hour = pickHour(24);

public int pickHour( int upperLimit )
{ 
    Random generator = new Random();
    return generator.nextInt(upperLimit);
}