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A checked exception must either be

  • caught within the method, or
  • declared to be thrown by the method
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This is enforced (“checked”) by the compiler.

Example: Exception is a checked exception, so this does not compile:
class Example {
    void method() {
        throw"error: Exception must be caught or declared to be thrown" new Exception();
     }
}
Here a throwssmall by colour Jasper bag grab White J block Conran v7YvwqT declaration has been added, so this does compile:
class Example {
    void method() throws Exception {
        throw Black Handbag RODO RODO Handbag new Exception();
    }
}
Here the exception is caught within the method, so this does compile:
class Example {
    void method() {
        try {
            throw new Exception();
        } catchTaupe RFID Luxuries 'Tori' grey London purse Pure leather handcrafted w0T7xxqd (Exception e) {
         // ...
        }
    }
}

An Handbag Black Handbag RODO RODO unchecked exception does not have this requirement.

Example: Handbag Brown LOUIS JEAN LOUIS JEAN SCHERRER SCHERRER 1qgYX is an unchecked exception, so this does compile:
class Example {
    void method() {                    // No throws declaration
        throw Handbag Black RODO Handbag RODO new RuntimeException();  // No try/catch
    }
}

Checked exceptions are often used as “alternative return values” for unpredictable errors from which client can recover. Unchecked exceptions are usually an indication of a programming error or other condition from which the client can’t be expected to recover.

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Choosing between Checked and Unchecked Exceptions

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