Java |当前日期和时间
可以有多种方式打印当前日期和时间。 使用 日期类
Java 语言(一种计算机语言，尤用于创建网站)
// Java program to print current date and
// time using Date class.
import java.util.*;
public class Main {
public static void main(String[] args)
{
Date d1 = new Date();
System.out.println("Current date is " + d1);
}
}
Output:
Current date is Sat Mar 24 18:22:46 UTC 2018
使用 历类
Java 语言(一种计算机语言，尤用于创建网站)
// Java Code of calendar.get() function
import java.util.*;
class GFG {
// Driver code
public static void main(String[] args)
{
Calendar c = Calendar.getInstance();
System.out.println("Day of week : " +
c.get(Calendar.DAY_OF_WEEK));
System.out.println("Day of year : " +
c.get(Calendar.DAY_OF_YEAR));
System.out.println("Week in Month : " +
c.get(Calendar.WEEK_OF_MONTH));
System.out.println("Week in Year : " +
c.get(Calendar.WEEK_OF_YEAR));
System.out.println("Day of Week in Month : " +
c.get(Calendar.DAY_OF_WEEK_IN_MONTH));
System.out.println("Hour : " + c.get(Calendar.HOUR));
System.out.println("Minute : " + c.get(Calendar.MINUTE));
System.out.println("Second : " + c.get(Calendar.SECOND));
System.out.println("AM or PM : " + c.get(Calendar.AM_PM));
System.out.println("Hour (24-hour clock) : " +
c.get(Calendar.HOUR_OF_DAY));
}
}
Output:
Day of week : 7
Day of year : 83
Week in Month : 4
Week in Year : 12
Day of Week in Month : 4
Hour : 6
Minute : 22
Second : 48
AM or PM : 1
Hour (24-hour clock) : 18
我们可以使用日历和格式化类以特定的格式打印当前日期。
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