Atlauncher java lang null pointer1/16/2024 ![]() If ((str!=null) || (accountTranslation=accountNumber))ĪccountTranslation = Integer. While((str!=null)&(accountVerified!=true)) Here is the finished product.with troubleshooting outputs :P public double getBalance(int accountNumber) throws IOException WOOT Got it not just oneway but BOTH saw what you said and I put an if statement around the everything in the while and it worked (after a few saw your post about how tokenizer is considered legacy so i figured for the sake of me being update to date I should learn it and use it, if it's legacy now when i graduate it will be ancient! haha! I'd give you all my code but theres about 1500 lines of it in a bunch of classes. JOptionPane.showMessageDialog(null, "Account does not exist") StringTokenizer strTokenizer = new StringTokenizer(str, ",") ĪccountTranslation = Integer.parseInt(strTokenizer.nextToken()) īalance=Double.parseDouble(strTokenizer.nextToken()) While((str!=null) || (accountTranslation=accountNumber)) Update: zhCN.lang - Update: ruRU.lang - Added: Bloodmoon Event An event. String accountFile="accounts/accounts.csv" įileReader freader = new FileReader(accountFile) īufferedReader outputFile = new BufferedReader(freader) As you havent initialized it and you are trying to use it in moveUp () method throwing NullPointerException. 1412 Null pointer Exception in console - 1421 Capacitor bank wont pull. ![]() Here's an example to help illustrate this point: String str null (str.length ()) In this code, the variable 'str' has been assigned a null value, and we're trying to call the 'length ()' method on it. public double getBalance(int accountNumber) throws IOException A Null Pointer Exception occurs when a program tries to access an object that has a null value. In the CVS file there are Account Numbers (1111, 2222, etc) and then right after each account is the balance of that account. Which is all 100% correct (minus the null). Just changing the format of the cell, for example: font color, avoids the NullPointerException. As soon as the code hits an empty cell, I get the It occurs even in rows and columns that are not last of the worksheet. Programs routinely use null pointers to represent conditions such as. In computing, a null pointer or null reference is a value saved for indicating that the pointer or reference does not refer to a valid object. I can't figure this one out! I threw in some console print outs to make sure it was getting the data correctly and it was outputting the following: 1111,25145.25 Using 'myExcelRow null' does not help for me. Language links are at the top of the page across from the title. I keep getting: Īt .(StringTokenizer.java:182)Īt .(StringTokenizer.java:204)Īt atmEngine.getBalance(atmEngine.java:100) I am working on a getBalance method that retrieves a balance from a CSV file.
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |