Java程序匹配日期
首先，我们考虑了以下两个日期。
SimpleDateFormat s = new SimpleDateFormat("yyyy-MM-dd");
Date d1 = s.parse("2018-10-15");
Date d2 = s.parse("2018-11-10");现在，使用该compareTo()方法比较两个日期。根据返回值显示结果。
if (d1.compareTo(d2) > 0) {
System.out.println("Date1 is after Date2!");
} else if (d1.compareTo(d2) < 0) {
System.out.println("Date1 is before Date2!");
} else if (d1.compareTo(d2) == 0) {
System.out.println("Date1 is equal to Date2!");
} else {
System.out.println("How to get here?");
}示例
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
public class Demo {
public static void main(String[] args) throws ParseException {
SimpleDateFormat s = new SimpleDateFormat("yyyy-MM-dd");
Date d1 = s.parse("2018-10-15");
Date d2 = s.parse("2018-11-10");
if (d1.compareTo(d2) > 0) {
System.out.println("Date1 is after Date2!");
} else if (d1.compareTo(d2) < 0) {
System.out.println("Date1 is before Date2!");
} else if (d1.compareTo(d2) == 0) {
System.out.println("Date1 is equal to Date2!");
} else {
System.out.println("How to get here?");
}
}
}输出结果
Date1 is before Date2!