So I'm creating a library management program using jframes in netbeans, I know it might not be the best solution but it's what I'm required to use in my course. Basically, every button action is controlled from one central private method, after a couple some username and password verification, I successfully create an object of the Librarian class called currentLibrarian. Until then I get no error, but when I try to reference this object outside the method it can't be found. the code is pretty extensive, and I understand there may be some inefficiencies, but I'm just trying to focus on this problem right now. The following is a snippet of relevant code there is some past that but it isn't relevant:
private void loginButtonActionPerformed(java.awt.event.ActionEvent evt) {
if(usernameField.getText().isEmpty()||passwordField.getText().isEmpty()){
JOptionPane.showMessageDialog(null, "Please Appropriately Fill all Fields");
}
else{
String inputUsername = usernameField.getText();
int inputPassword = Integer.parseInt(passwordField.getText());
ConnectionDB connect= new ConnectionDB();
try {
Statement stm = (connect.connectDB()).createStatement();
String query = "select * from library.username_password where username = '"+inputUsername+"';";
ResultSet usernamePasswordResultSet = stm.executeQuery(query);
/**
* When an invalid username is requested from mySQL database, a 'false' boolean value is returned in Result Set
* Thus if the username input is invalid the result of userInfoResultSet.next() should be false
* furthermore .next() moves cursor to start position of the result set and allows us to begin reading values
*/
if(!usernamePasswordResultSet.next()){
failedAttempt();
JOptionPane.showMessageDialog(null, "Username is Invalid");
}
else{
/**if the username is valid we can retreive the stored password at that location
* then verify password validity
*/
int databasePassword = usernamePasswordResultSet.getInt("password");
if(databasePassword != inputPassword){
failedAttempt();
JOptionPane.showMessageDialog(null, "Password is Invalid");
}
/**
* if both username and password are valid we need to verify what type of user we have
* then redirect them to the respective main menu
*/
else{
boolean isLibrarian = usernamePasswordResultSet.getBoolean("isLibrarian");
if(isLibrarian){
Librarian currentLibrarian = new Librarian(usernamePasswordResultSet.getBoolean("isHeadLibrarian"));
this.setVisible(false);
new LibrarianMainMenuForm().setVisible(true);
}
The following code is where I try to reference it from:
private void libraryStatsActionPerformed(java.awt.event.ActionEvent evt) {
if(currentLibrarian.getIsHeadLibrarian()){
}
}
I was hoping that in the second section of code, I'd get no error instead i'm told that I 'cannot find symbol'
