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maha

why is the declaration int a[n] ; invalid where n is not a constant integer

deedee

ya itz

n can b ne integer

like

int ar[5]

so it contains five elmnts max and min it can contain en no. bt less then 5

shobhita

ya its the format n u cannot change it............u hv to give some const. value like any no.there in the bracket

maha

but how come dynamic arrays are allowed......help me please

atul_sinha89

first of all dynamic arrays are not allowed and

whenever we define an array its size must be constant becoz an array cannot have variable sizes .....

u can do like this..

where u include header files...

#define num 10;

this defines num = 10;

int ar[num];

this is valid or you can use any constant vaue

rate me if usefull.

adityaraj

u can keep those brackets empty.

achman

This is true for C++ in general.

In JAVA you can even allocate array size dynamically

pratik20990

atul ws right or u can do by this logically similar method-

const int n=10;
int arr[n];

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