为以后的我先留个比较小白的问题，这两段代码到底哪个好，如何评价。

class ChaBiao{public static void main(String[] args){getWeek(3);}public static void getWeek(int num){String[] str ={"Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"};if( num>=0 && num<7 ){if(num != 0){System.out.println("This number is "+num+", so today is "+ str[num]+" !");}elseSystem.out.println("Today is "+ str[0]+" !");}elseSystem.out.println("Error");}}

下面是另一段代码，两者实现是一样的。

class ChaBiao{public static void main(String[] args){String st = week(3);System.out.println("Today is "+ st +" !");}public static String week(int num){if(num >7 || num <1){return "Error";}String[] str ={"","Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"};return str[num];}}