Exception Handling in Java

try/catch/finally, checked vs unchecked exceptions and try-with-resources.

Easy

try (var reader = new BufferedReader(new FileReader("data.csv"))) {   // closed automatically
    String line = reader.readLine();
} catch (IOException e) {
    System.err.println("Could not read: " + e.getMessage());
}

Checked exceptions (IOException) must be caught or declared with throws.
Unchecked exceptions (NullPointerException, IllegalArgumentException) usually signal programming bugs.

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