Which three form part of correct array declarations? public int a [ ] static int [ ] a public [ ] int a private int a [3] private int [3] a [ ] public final int [ ] a

(1), (2) and (6) are valid array declarations.

Option (3) is not a correct array declaration. The compiler complains with: illegal start of type. The brackets are in the wrong place. The following would work: public int[ ] a

Option (4) is not a correct array declaration. The compiler complains with: ']' expected. A closing bracket is expected in place of the 3. The following works: private int a []

Option (5) is not a correct array declaration. The compiler complains with 2 errors:

']' expected. A closing bracket is expected in place of the 3 and

<identifier> expected A variable name is expected after a[ ] .