Java (Android) · question
Q.02 of 49
What are the different types of exceptions in Java?
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Re-explain
- Checked Exceptions: Must be handled at compile time (IOException, SQLException)
- Unchecked Exceptions: Runtime exceptions (NullPointerException, ArrayIndexOutOfBoundsException)
- Errors: Serious system problems (OutOfMemoryError, StackOverflowError)
// Checked exception - must handle
try {
FileReader file = new FileReader("file.txt");
} catch (IOException e) {
e.printStackTrace();
}
// Unchecked exception - optional handling
String str = null;
str.length(); // NullPointerException
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