Java语言怎么获取当前的日期到2024年1月1日还有多少天

Question

Java语言怎么获取当前的日期到2024年1月1日还有多少天？怎么实现日期的倒计时程序呢

Answer 1

展示如何获取到2024年1月1日还有多少天：

import java.time.LocalDate;  
import java.time.temporal.ChronoUnit;  
  
public class CountDaysUntilNextYear {  
    public static void main(String[] args) {  
        LocalDate now = LocalDate.now();  
        LocalDate nextYear = LocalDate.of(2024, 1, 1);  
        long daysUntilNextYear = ChronoUnit.DAYS.between(now, nextYear);  
        System.out.println("Days until next year: " + daysUntilNextYear);  
    }  
}

倒计时程序：

import java.time.LocalDate;  
import java.time.temporal.ChronoUnit;  
  
public class CountdownToNextYear {  
    public static void main(String[] args) throws InterruptedException {  
        LocalDate now = LocalDate.now();  
        LocalDate nextYear = LocalDate.of(2024, 1, 1);  
        long daysUntilNextYear = ChronoUnit.DAYS.between(now, nextYear);  
        long daysLeft = daysUntilNextYear;  
        while (daysLeft > 0) {  
            System.out.println("Days left until next year: " + daysLeft);  
            Thread.sleep(1000); // sleep for 1 second  
            daysLeft--;  
        }  
        System.out.println("Happy New Year!");  
    }  
}