In reply to sh88:
module a ;
int a;
string name;
string name2;
initial
begin
a = 5;
name = "abc";
// one way
name2 = $sformatf("%s%0d", name, a);
$display("a=%d, name1=%s,name2=%s",a,name,name2);
// another way
name2.itoa(a);
name2 = {name,name2};
$display("a=%d, name1=%s,name2=%s",a,name,name2);
// yet another way
$display("a=%d, name1=%s,name2=%s%0d",a,name,name,a);
end
endmodule