Error when cancel the showInputDialog

Question

I want to create a input dialog box when new record is created and save the user input as `input` into the file. Here is the code : ``` String input = JOptionPane.showInputDialog(null, "Enter name : ", "New Record!", 1); //This to let user input name try { JOptionPane.showMessageDialog(null, "Thanks for playing.", "Thanks", 1); //Show this dialog after user input HighestScoreFile.HighestScoreFile(input, hours, minutes, seconds, click); //Store the data into a file, the `method` is in another class. } catch(IOException ex){} ``` When there is no user input or any input, the `OK` button work fine, but if I click the `cancel`button, it returns these errors : ``` Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at HighestScoreFile.HighestScoreFile(HighestScoreFile.java:22) at MemoryGame$ButtonListener.actionPerformed(MemoryGame.java:329) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018) at javax.swing.AbstractButton$Handler.actionPerformed(Ab…

Accepted Answer

```
String input = ....
if (input!=null) { ...
```

Error when cancel the showInputDialog

Solution

Problem