Generating random numbers within range inside the Class in Java [duplicate]

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• How do I generate random integers within a specific range in Java? 48 answers

I have homework for summer and there's this exercise I can't complete. I have to generate a random hour (HH:MM:SS) and then transform it into seconds. I searched on the internet but everyone was suggesting creating an object and then something like this int mins = rand.nextInt(59) + 0; but I cant do it in the Class so what should I do?

Methods:

public int  randomHour(int myhour,int myminutes,int myseconds){
    this.ore=myhour;
    this.minuti=myminutes;
    this.secondi=myseconds;

    return myhour + myminutes + myseconds;

and

public int countSeconds(int totseconds){
    totseconds=totseconds;
    totseconds = seconds + (60*minuti) + (3600*ore);

    return totseconds;