Java.sql.time的替代品

Question

Is java.sql.time not working properly?

This is my code

         Time lowertime=new Time(date.getTime());
         lowertime.setHours(lowertime.getHours()-11);
         System.out.println(lowertime);
         Time uppertime=lowertime;
         uppertime.setHours(lowertime.getHours()+1);
         System.out.println(uppertime);
         System.out.println(lowertime);

Result Obtained

02:11:13
03:11:13
03:11:13

The result should be:

 02:11:13
 03:11:13
 02:11:13

I searched the java docs and its deprecated.Whats the alternative to get a time range of 1 hour or (say 58 minutes).

I am using java,Hibernate Framework and MySql database.Whats the best option for me.

Answer 1

Time uppertime=lowertime;

Due to the above line, uppertime and lowertime are two references to the same object. Each time you modify one, you also modify the other, since they are in fact a single, unique object. You need to create a copy:

Time uppertime = new Time(lowertime.getTime());