non static variable

[sanjay123456]

Dear Friends

 
public class hello
{
          int i=0;
          public static void main(String args[])
          {
                System.out.print(i);
            }
}
 
 

can it possible that i can use int i in main function without declaration as static ?

sanjay

[horace1]

you either make it static or you access it via an object of type hello

public class hello
{
          int i=0;
          int geti() { return i; }
          public static void main(String args[])
          {
                hello h=new hello();
                System.out.print(h.geti());
            }
}

and each hello object will have its own copy of i

[r035198x]

Find time to read this.

[sanjay123456]

Thx dear

i have a problem that '

why java accept a varoable as static in only class level

we did not declare a variable as static in function level ?

sanjay

[r035198x]

Thx dear



i have a problem that \'



why java accept a varoable as static in only class level



we did not declare a variable as static in function level ?



sanjay

If a method is static, all the variables declared in that method are implicitly static. Also you cannot declare static variables inside non-static methods.

[horace1]

Thx dear

i have a problem that '

why java accept a varoable as static in only class level

we did not declare a variable as static in function level ?

sanjay

are you thinking of static local variables in C functions, e.g.

int test()
{
   static int x=0;
   x++;
  return x;
}
 

x is initialised to 0 in the first function call and then incremented on sucessive calls - it retains its value between calls unlike 'normal' local variables the value of which is lost and reinitialised on each call (if it has an inital value otherwise it is undefined), Sucessive calls of test() return 1, 2, 3, etc.

[dmjpro]

static variables are those variables which can be accessed without instantiate the corresponding class.
here the main class u used jvm didn't instantiate..
the static members of a class are used only in static function of that class.