print the odd numbers by using constraints code

 module test();

class packet;

rand bit [7:0] a;

initial

begin

constraint a{ a inside [10:20];}}

constraint a2 ( foreach(a[i])

if(i%2==0)

a[i]==0;

else

a[i]==1;

}

endclass

packet p1=new();

assert(p1.randomize());

$display("the value of a is =%p", p1.a);

endmodule