Java OCA OCP Practice Question 990

Question

Which of the following will compile when inserted in the following code?

Choose all that apply 

public class MyClass3 { 
  final String value1 = "1"; 
  static String value2 = "2"; 
  String value3 = "3"; 
  { /*ww  w. j a v a2 s  .  c o m*/
    // CODE SNIPPET 1 
  } 
  static { 
    // CODE SNIPPET 2 
  } 
}
  • A. value1 = "d"; instead of // CODE SNIPPET 1
  • B. value2 = "e"; instead of // CODE SNIPPET 1
  • C. value3 = "f"; instead of // CODE SNIPPET 1
  • D. value1 = "g"; instead of // CODE SNIPPET 2
  • E. value2 = "h"; instead of // CODE SNIPPET 2
  • F. value3 = "i"; instead of // CODE SNIPPET 2 


B, C, E.

Note

value1 is a final instance variable.

It can only be set once: in the variable declaration, an instance initializer, or a constructor.

Option A does not compile because the final variable was already set in the declaration.

value2 is a static variable.

Both instance and static initializers are able to access static variables, making options B and E correct.

value3 is an instance variable.

Options D and F do not compile because a static initializer does not have access to instance variables.




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