May 2024
Intermediate to advanced
889 pages
37h 5m
English
Content preview from Java Programming by Pearson
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614 • Java Programming
Explanation: This program shows how cloning can be dangerous some times. There is a class demo1 with
just one member str of String type. A reference of this demo1 class named d1 is a member of demo2
class. The member str of demo1 class is initialized with value ‘ Test ’ when constructor of demo2 class
is called. Using the getClone method of demo1 class a cloned object is obtained and is stored in B . In
this cloning operation, only the member num is copied to object B but both objects share a single copy of
reference d1 . Now, changes performed to str through this reference d1 by any of the object A
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