Get current system date

Get the current date of the system

Sometimes , We only need to get the current date information , In some old systems , The following statements may be used ：

public class Main {
    
    public static void main(String[] args) {
    
        
        Date today = new Date();
        today.setHours(0);
        today.setMinutes(0);
        today.setSeconds(0);
        
    }
}

at present ,Date Class setHours 、 setMinutes 、setSeconds Method has been marked as deprecated , also , It is recommended that programmers use Calendar Class set Method operation time ：

Here is by using Calendar Class set Method to obtain the code of the current system date ：

public class Main {
    
    public static void main(String[] args) {
    
        
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.HOUR_OF_DAY, 0);
        calendar.set(Calendar.MINUTE, 0);
        calendar.set(Calendar.SECOND, 0);
        Date today = calendar.getTime();
        
    }
}