Help, try and catch and variables

Question

I have a private vector in one of my objects, i then add some items to it at the beginning of a method, the program then goes into a try/catch block where i add some more variables.
However, the variables i add in the try/catch block only seem to exist within that block.
In another method i refer to the vector again, but it only contains the elements i added before the try/catch block.
Any suggestions?

Answer 1

headers = new Vector();
headers.add("String 1");
headers.add("String 2");
connect("database");
System.out.println("Connected");
try
String mySQL = "SELECT * FROM " + table;
Statement st = c.createStatement();
System.out.println("Statement Created");
st.executeQuery(mySQL);
catch (Exception e)
try
StringTokenizer tk = new StringTokenizer(layoutString, "|");
while (tk.hasMoreTokens())
String tmpStr = tk.nextToken();
if (tmpStr.equalsIgnoreCase("ScalePanel"))
String tmp = tk.nextToken();
headers.add(tmp);
headers.add("number");
else if (tmpStr.equalsIgnoreCase("OptionPanel"))
String tmp = tk.nextToken();
headers.add(tmp);
headers.add("varchar(20)");
else if (tmpStr.equalsIgnoreCase("InputPanel"))
String tmp = tk.nextToken();
headers.add(tmp);
headers.add("varchar(20)");
System.out.println("Table Doesn't Exist, creating...");
String mySQL = "create table " + table + " (";
for (int i = 0 ; i < headers.size() ; i++)
if (i == 0)
mySQL += headers.get(i) + " " + headers.get(++i);
else
mySQL += "," + headers.get(i) + " " + headers.get(++i);
mySQL += ");";
Statement st = c.createStatement();
st.execute(mySQL);
catch (Exception ex)
System.out.println("Error while creating table");
System.out.println(ex.getMessage());
disconnect();
I then refer to headers in another method, but it only contains the items before the try/catch.