JPA / MySQL Decimal displayed in wrong way -

i want persist sum of double values decimal(4,2) in database , display user. issue have is, decimal number stored correctly in database 2 decimal digits. when querying database in cases displays lot more decimal digits user. in entity class have:

@column(name="weight_sum", precision=6, scale=2)     private double weightsum; 

in mysql database have column specified

decimal (4,2) 

i don't understand made mistake.

actually doing correct things need more stuff. if have define precision , scale weightsum of entity class save db accordingly. when data db , bind corresponding entity class again take default scale(actual scale following zero) , precision value. whenever send data end user need set scale as-

weightsum.setscale(2, bigdecimal.round_floor);

in above method 2nd parameter roundingmode, should select roundingmode per requirement.

i hope out. thanks