Addendum: Java Relevance-3

Java provides inbuilt serialization mechanism. One can invoke this functionality by implementing serializable interface and no further method writing. In Objective C one has to write the logic for the serialization. Same goes with cloning or copying of the objects.
Objective C is pretty loose with public and private methods.
You can restrict the inheritance in Java, whereas Objective C allows you to add the methods to existing classes at runtime by using Categories.
Java doesn't have pre-processors like #import, which is processed even before compiler starts.
In Java almost every error is handled through exception. In Objective C exception handling keywords are available but used the way they are used in Java.

Java provides inbuilt serialization mechanism. One can invoke this functionality by implementing serializable interface and no further method writing. In Objective C one has to write the logic for the serialization. Same goes with cloning or copying of the objects.