Array declaration

[Sakthi Kani]

hi

Please any one can explain me in the following code,
why the line 2 give compliler error.....
----------------------------------
int[] a1[],a2[]; // 1
int []a3,[]a4; // 2
int []a5,a6[]; // 3
int[] a7,a8[]; // 4
-----------------------------------
The line2 similar to

int []a3;
int []a4;

Then why it leads to compiler error.

[Raghu Shree]

Hi,
In line 2 any valid identifier is expected here. So compiler throws an error message.

int []a3, []a4; // 2
change this line to
int [a3],a4[]; // It compile without any error message

[J Abraham]

Hai shakti,

The declaration of the array

int []a3,[]a4; // 2

shows compile time error as the array brace has to be put after the variable. the array a3 declaration is correct since it immedietly follows the datatype, whereas a4 comes after coma. the correct declaration would be

int []a3,a4[]; // 2

Hope this solves ur doubt.

Cheers,

-jibiN


have will, have everything...

[Sakthi Kani]

Hi

I am still not clear..

int a1,a2;

Both a1 and a2 are type int.

Then why not in arrays as,

int []a1,[]a2;
plz help me...

[Manish Nijhawan]

Hi,

int [] a1;
the above statement means that a1 is of type int[].

int[] a1 , a2;
The above statement means that a1 and a2 both are of type int[].

so int[] becomes the type and a1 and a2 becomes variables.

if we write int[] a1[];
this means a1 is an array of type int[](which itself is an array) therefore a1 is of type int[][] i.e. a 2-d array.

but if we write int[] a1 , []a2;
here a1 is the name of the variable but []a2 cannot be resolved as the compiler expects a variable name and [] are not allowed in the name of the variable.

[Parameswaran Thangavel]

hi
is a2 is two dimensional while a1 is single dimnesional one.

[Pally Gharmount]

simple

int []a3,[]a4; // is wrong, need a primitive/object type on left of []a4.

can be fixed by...

int []a3,a4[];

or

int []a3;
int []a4;

Pally