当我运行下面的Java代码
问题描述:
我得到这个错误,当我运行下面的Java代码当我运行下面的Java代码
Exception in thread "main" java.lang.Error: Unresolved compilation problem: at my.time.main(time.java:9)
package my;
package com.mkyong.date;
import java.text.SimpleDateFormat;
import java.util.Date;
public class time {
public static void main(String[] args) {
String dateStart = "01/14/2012 09:29:58";
String dateStop = "01/15/2012 10:31:48";
//HH converts hour in 24 hours format (0-23), day calculation
SimpleDateFormat format = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");
Date d1 = null;
Date d2 = null;
try {
d1 = format.parse(dateStart);
d2 = format.parse(dateStop);
//in milliseconds
long diff = d2.getTime() - d1.getTime();
long diffSeconds = diff/1000 % 60;
long diffMinutes = diff/(60 * 1000) % 60;
long diffHours = diff/(60 * 60 * 1000) % 24;
long diffDays = diff/(24 * 60 * 60 * 1000);
System.out.print(diffDays + " days, ");
System.out.print(diffHours + " hours, ");
System.out.print(diffMinutes + " minutes, ");
System.out.print(diffSeconds + " seconds.");
} catch (Exception e) {
e.printStackTrace();
}
}
}
答
我收到此错误您可以设置package
两次:
package my;
package com.mkyong.date;
它只被允许一次。你应该设置你的包来匹配你的类路径。
这行是9? – Abdelhak