Java OCA OCP Practice Question 1844

Question

Given the following set of member declarations, which of the following is true? 

int a;                     //   (1)
static int a;              //   (2)
int f(){return a;}         //   (3)
static int f(){return a;}  //   (4)

Select 2 options

  • A. Declarations (1) and (3) cannot occur in the same class definition.
  • B. Declarations (2) and (4) cannot occur in the same class definition.
  • C. Declarations (1) and (4) cannot occur in the same class definition.
  • D. Declarations (2) and (3) cannot occur in the same class definition.
  • E. Declarations (1) and (2) cannot occur in the same class definition.


Correct Options are  : C E

Note

Local variables can have same name as member variables.

The local variables will simply shadow the member variables with the same names.

Declaration (4) defines a static method that tries to access a variable named 'a' which is not locally declared.

Since the method is static, this access will only be valid if variable 'a' is declared static within the class.

Therefore declarations ( 1) and (4) cannot occur in the same definition.




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