static and nonstatic demo in java

class staticandnonstatic
{
int a=100;

static int b=200;

void funa()
{
int a=10;
System.out.println("\nnon static variable a :"+a);
System.out.println("\nstatic variable b :"+b);


}
static void funb()
{
//System.out.println("\na :"+a);

System.out.println("\nstatic variable b :"+b);
}
public static void main(String args[])
{
//System.out.println("\nnon static variable a :"+a);
System.out.println("\nstatic variable b :"+b);

staticandnonstatic san= new staticandnonstatic();
//funa();
san.funa();
System.out.println("\nnon static variable a :"+san.a);
san.funb();
funb();
}
}

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observe the comment lines.
that lines are errors.
so, not use like that
===================================================
output :

static variable b :200
non static variable a :10
static variable b :200
non static variable a :100
static variable b :200
 static variable b :200