Final, Finally, Finalize

Final

Inheritance of a final class and overriding of a final method is restricted and the variable value becomes fixed.

final int a = 100;
a = 0;  // error

Finally

It is the block where all the codes written inside it get executed irrespective of handling of exceptions.

try {
	int variable = 5;
}
catch (Exception exception) {
	System.out.println("Exception occurred");
}
finally {
	System.out.println("Execution of finally block");
}

Possibly not executed

1. Suppose we use System.exit() in the above statement.
2. If there are fatal errors like Stack overflow, Memory access error.

Finalize

Prior to the garbage collection of an object.

public static void main(String[] args) {
	String example =new String("InterviewBit");
	example =null;
	System.gc(); // Garbage collector called
}
public void finalize() {
	// Finalize called
}