Static variables

[rex tony]

package pack;
public class A
{
public static int x=10;
public static int y=20;
public static void main(String args[])
{
new A();
System.out.println(x);
System.out.println(y);
}
public A()
{
x=20;
y=30;
}
}

import pack.A;
class B
{
 
public static void main(String args[])
{
System.out.println(A.x);
System.out.println(A.y);
}
}

If i compile & run the Class A
the answer is 20,30
but i compile and run class B 
the answer is 10,20

How?

[Prasun Howlader]

Because constructor in class A assign a= 20,b= 30 but in class B that is not happen so default value 10 and 20 print.
[ March 01, 2008: Message edited by: Prasun Howlader ]

[rex tony]

why the class B doesn't call value of the constructor of class A?

[Krep Lock]

Originally posted by rex tony:
why the class B doesn't call value of the constructor of class A?

class B does not instantiate an object of class A, so the constructor would never be called. the fields x and y are static, of course, so no instance is necessary when dealing with them as they belong to the class, not any object.