static

[Smitha Ballikar]

  
Given the code, what is the output
 

 
public class MyClass{
 
  static int i = 10;
 
  
 
  public static void main(String[] arg){
 
static int i = 20;
 
        System.out.println("i is :"+i);
 
  }
 
}
 

A.Code Does't Compile.
 
B.Code Compiles but error will be generated at runtime.
 
C.Code Compiles & runs, output is 
         i is : 10
 
D.Code compiles & runs, output is 
  i is : 20
 

Answer is A.
Why code doesnt compile here??Is it because static variable is declared twice.But can a local variable not shadow an instance variable.
 

[vinuharan haran]

Hi,
The reason is local variable cannot be declared static.
thanks,
vinu.

[RAMA KRISHNA AALLA]

I think,

"Static methods can't have static variables or static blocks inside them"

Plz Correct me if i am wrong!


Cheers,
Rama Krishna Chowdary

[Santana Iyer]

Simple reason as mentioned above,
main is a method and so can not have static modifier
for variable, only modifier allowed in method is final,

final int x=19;

hope this helps,
correct me if required.

[Jyothi Bhogadi]

hello Ramakrishna,
not only static methods... but i guess none of the method variables can have static as their modifier.....and only final is allowed and nothing else for a method variable.

Some body please correct me if i am wrong.

Regards
Sam

[shashikanth penumadula]

hi
a local variable can have only a variable type and identifier.
it cannot have keywords like public , private, protected, final, static , transient or volatile.

[Aakash Parashar]

Smita,

static var i in main is not shadowing the class level variable i declared. static modifier for variables cannot be used insie methods, its a compile time error.

[Smitha Ballikar]

Hi,
Thanks!!

[Shivani Chandna]

Originally posted by shashikanth penumadula:
hi
a local variable can have only a variable type and identifier.
it cannot have keywords like public , private, protected, final, static , transient or volatile.

variables can have final as modifier in local scope.

[Richard Green]

err... u cant have local static varaibles. thats it