Storing Recent Notes in Cache
To speed up access to recent notes, your app will store them in a lightweight cache file. In this task, you'll create a new file called "cache.txt" and confirm that it was successfully created. This sets the stage for saving frequently used data.
All the necessary packages from java.io have been imported for you.
This exercise is part of the course
Input/Output and Streams in Java
Exercise instructions
- Create a
Fileobject for"cache.txt". - Check if the file already exists.
- If the file exists, delete it.
- Create a new file named
"cache.txt".
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
class CacheDataManager {
public static void main(String[] args) {
try {
// Create a File object
File cacheFile = ____ ____("cache.txt");
// Check if the file exists
if (____.____()) {
// Attempt to delete the file
if (____.____()) {
System.out.println("Old cache file deleted successfully.");
} else {
System.out.println("Failed to delete the old cache file.");
}
}
// Create the file for cache.txt
if (____.____()) {
System.out.println("New cache file created successfully.");
} else {
System.out.println("Failed to create the new cache file.");
}
} catch (IOException e) {
System.out.println("An error occurred: " + e.getMessage());
}
}
}