Declaration and Access Control
What will be the output?public class Test{ public static void main(String[] args){ String value = "abc"; changeValue(value); System.out.println(value); } public static void changeValue(String a){ a = "xyz"; }}

abc
xyz
None of these
Compilation fails
Compilation clean but no output

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Declaration and Access Control
Which statements are most accurate regarding the following classes?class A{ private int i; protected int j;}class B extends A{ private int k; protected int m;}

An object of B contains data fields k, m.
An object of B contains data fields j, k, m.
An object of B contains data fields j, m.
An object of B contains data fields i, j, k, m.

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Declaration and Access Control
A method within a class is only accessible by classes that are defined within the same package as the class of the method. Which one of the following is used to enforce such restriction?

Declare the method with the keyword public and private.
Declare the method with the keyword private.
Do not declare the method with any accessibility modifiers.
Declare the method with the keyword public.
Declare the method with the keyword protected.

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