Java获取月份的三种方法总结

import java.util.Date;
import java.text.SimpleDateFormat;

public class GetMonthWithDate {
    public static void main(String[] args) {
        Date date = new Date();
        SimpleDateFormat sdf = new SimpleDateFormat("MM"); // MM代表月份（01-12）
        String month = sdf.format(date);
        System.out.println("当前月份: " + month);
    }
}

import java.util.Calendar;

public class GetMonthWithCalendar {
    public static void main(String[] args) {
        Calendar calendar = Calendar.getInstance();
        int month = calendar.get(Calendar.MONTH); // 返回值范围是0-11
        System.out.println("当前月份: " + (month + 1)); // 需要加1
    }
}

import java.time.LocalDate;

public class GetMonthWithLocalDate {
    public static void main(String[] args) {
        LocalDate today = LocalDate.now();
        int month = today.getMonthValue(); // 获取1-12的月份值
        System.out.println("当前月份: " + month);
    }
}

import java.time.LocalDate;
import java.time.Month;

public class GetMonthName {
    public static void main(String[] args) {
        LocalDate today = LocalDate.now();
        Month month = today.getMonth(); // 返回 Month 类型
        System.out.println("当前月份: " + month); // 自动调用 toString 方法
    }
}