在线讨论:vector.toArray()的作用,有一段小小源码请看
请帮我看看这段源码作了什么,并非常希望各位给我讲讲Vector是干什么的,以及它一般在什么时候用,还有 toArray谢谢
public void initArray()
{
Vector vector = new Vector(2000);
Vector vector1 = new Vector(2000);
try
{
Statement statement = con.createStatement();
String s = "select distinct icode,fcode from IstfInfo order by fcode";
ResultSet resultset;
String s2;
for(resultset = statement.executeQuery(s); resultset.next(); vector1.add(s2))
{
String s1 = resultset.getString(1);
s2 = resultset.getString(2);
vector.add(s1);
}
resultset.close();
statement.close();
}
catch(Exception exception)
{
System.out.println(exception);
}
hyArray = vector.toArray();
shArray = vector1.toArray();
}