In what language?
c and c++
a 5 x 5 array of Int
int nMultiIntArray[5][5];
Answer:
in java
int array[][]=new int[5][5];
in vb
dim array(5,5) as Integer
C-style static array:
int x[10][5]; // an array of arrays (10 arrays of 5 elements each)
C++ static array:
std::array<std::array<int, 5>, 10> a;
C++ dynamic array (vector):
std::vector<std::vector<int>> v;
In a C++ dynamic array, each dimension can have a different number of elements. A classic example of a multidimensional array is an array of strings, where each string is a character array of variable length:
std::vector<std::string> s;
Syntax of an array
type var_name[];
or
type []var_name;
Where
type- Type is an valid data type or reference name.
var_name- Valid identifier where is accepted by Java compiler.
There are two types of arrays: static and dynamic.
A two dimensional array is one array, each element of which consists of another array. Declaring a two-dimensional static array is as follows:
For instance:
int myintarray[10][5];
This sets up an array of 50 elements: 10*5. Assuming intis 4 bytes large, the total size of this array is 200 bytes. The outermost array is indexed from 0 to 9, and the innermost arrays are indexed from 0 to 4. Thus, "maxindex+1" above.
Dynamic arrays are created using a memory allocation function (i.e. malloc()). The above array declaration could be rewritten as follows:
int **myintarray, index;
myintarray=(int**)malloc(sizeof(int*)*10);
for (index=0; index<10; index++)
myintarray[index]=(int*)malloc(sizeof(int)*5);
The outermost array has a block of memory 40 bytes long on a system using 32-bit pointers. Each array within has a block of memory 20 bytes long for a 32-bit int.
Please note that using constants like above (10 and 5) is not recommended, and you should use #define statements to help prevent invisible bugs. For instance, if you later changed 10 to 20 in the allocator, but neglected to make the same change in a for() iterator loop, memory that had been allocated would not be used; conversely, making a similar change in the iterator but not the allocator would lead to a segmentation fault condition (segfault).
So either of the following is instead recommended:
#define OUTARRSIZE 10
#define INARRSIZE 5
int myintarray[OUTARRSIZE][INARRSIZE];
Or:
#define OUTARRSIZE 10
#define INARRSIZE 5
int **myintarray, index;
myintarray=(int**)malloc(sizeof(int*)*OUTARRSIZE);
for (index=0; index myintarray[index]=(int*)malloc(sizeof(int)*INARRSIZE); More information on arrays and pointers is available at the related links below. (Note that the code above has not been tested, and is available for demonstrative purposes only.)
an array is a collection of the same data type.
All syntax errors occur at compile time.
Function declaration, definition, or calling? Pick one.
<?xml version="1.0"?>
Possible. void foo (void) { int array [10][20]; ... }
an array is a collection of the same data type.
All syntax errors occur at compile time.
The syntax is: int a[10]; for (int i=0; i<10; ++i) a[i]=i;
Function declaration, definition, or calling? Pick one.
<?xml version="1.0"?>
int x[]={0,1,2,3,4,5,6,7,8,9};
Possible. void foo (void) { int array [10][20]; ... }
Because that's how the language is defined. In C, C++, and many other languages, array indecies start with zero. This is by convention, and it also reflects the fact that, in C and C++, array-index syntax can also be expressed in pointer-offset syntax. The pointer locates the first element of the array, and the offset indicates how many elements to skip. If a is an array name, then the expression a[n] is completely identical to the expression *(a+n), and vice versa.
An anonymous array in Java is just an array with its contents declared at instantiation. Normal array declaration: int[] nums = new int[3]; nums[0] = 0; nums[1] = 1; nums[2] = 2; Anonymous array declaration: int[] nums = new int[] {0,1,2}; The two examples above will each result in the same array.
type variable {[optional array size]} {= optional initializer};
You have to be more specific. What part of C syntax? Do you want the syntax for outputing a number or sentence, do you want to syntax for creating a array, struct, a user defined function or what? #include iostream using namespace std; int main { cout << "Hello World!" << endl; return 0; };
ordanry variable store one value at a time. arrays are used for storing more than one value at a time in a single variable name ordanry variable doesnt have subscript. array must have subscript syntax for ord. variable Datatype v1,v2...... syntax for array variable Datatype v1[n1],v2[n2].....