I had problem with correct setting today value. And the way I wrote 2020 in year is really stupid, but it works. 
import java.util.Date;
import java.text.SimpleDateFormat;
.....
psvm() {
        Date data = new Date();
        System.out.println(data.getMonth()+1+" "+data.getDate()+" "+2020);
}
My smarter try, but still problem with set value. 
psvm() {
        SimpleDateFormat form = new SimpleDateFormat("dd MM yyyy");
        Date data = new Date();
// X,Y,Z - some values
        data.setDate(X);
        data.setMonth(Y);
        data.setYear(Z);
        System.out.print(form.format(data));
    }
any idea how to solve it?