Discussion :: Declarations and Access Control
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Which one creates an instance of an array?
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A.
int[ ] ia = new int[15];
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B.
float fa = new float[20];
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C.
char[ ] ca = "Some String";
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D.
int ia[ ] [ ] = { 4, 5, 6 }, { 1,2,3 };
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Answer : Option A
Explanation :
Option A is correct. It uses correct array declaration and correct array construction.
Option B is incorrect. It generates a compiler error: incompatible types because the array variable declaration is not correct. The array construction expects a reference type, but it is supplied with a primitive type in the declaration.
Option C is incorrect. It generates a compiler error: incompatible types because a string literal is not assignable to a character type variable.
Option D is wrong, it generates a compiler error <identifier> expected. The compiler thinks that you are trying to create two arrays because there are two array initialisers to the right of the equals, whereas your intention was to create a 3 x 3 two-dimensional array.
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