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2. a) What is the role of default and protected access modifier in Java? b) What happens when a class with parameterized constructors and having no default constructor is used in a program and we create an object that needs a zero-argument constructor? c) Find out the error of the following Java code. How do you fix the error? public class Test { } public static void main(String[] args) { int x = getValue(); System.out.println(x); } public static getValue() { return 10; }