Java Concepts

Final in Java

• final class cannot be inherited
• final method cannot be overridden
• final variable value cannot be changed

Finally in Java

Java finally block is a block that is used to execute important code such as closing connection, stream etc. It is always executed whether exception is handled or not. Java finally block follows try or catch block.

Finalize in Java

The java.lang.Object.finalize() is called by the garbage collector on an object when garbage collection determines that there are no more references to the object. A subclass overrides the finalize method to dispose of system resources or to perform other cleanup.

Is Java pass by reference or pass by value

Java passes the references by value Java manipulates objects by reference, but it passes object references to methods by value

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