how to write user defined class as Immutable?

[srinivasmallabathula]

String class object is immutable.how to write our own user defined class object as immutable?

[Petr]

Hi. You can use "final" keyword for this aim. if you want to close access to inside variables you will not be able to make a set's modification in this class.

[DarrylBurke]

Is Google down in your part of the world?
Immutable object - Wikipedia, the free encyclopedia

db

[Singing Boyo]

In short, declare the class as 'public final class ImmutableThing', and all variables too. Can't modify anything then, and that's what makes something immutable. Besides that, google is your friend.