Wipro Training Exception Handling and JDBC

Which class is the superclass of all exceptions?

• Error 

• Throwable

• Exception

• RuntimeException

Which keyword is used to handle exceptions?

• try

• catch 

• finally

• All of the above

What is the output?

try {

int a = 10 / 0;

} catch (ArithmeticException e) {

System.out.println("Divide by zero");

}

• Compile-time error

• Runtime error

• Divide by zero

• No output

Can we catch multiple exceptions in a single catch block in Java 7+?

• Yes

• No

• Only with checked exceptions

• Only with RuntimeException

Which is a checked exception?

• ArithmeticException

• NullPointerException

• IOException

• ArrayIndexOutOfBoundsException

What is the purpose of finally block?

• Handles exceptions

• Executes only on error

• Executes always

• Optional block

Which block executes regardless of exception?

• try

• catch

• throw

• finally

What happens if an exception is not caught?

• JVM halts program

• JVM skips to next try

• JVM throws error

• JVM retries execution

Can we use throw without try?

• Yes

• No

• Only in static block

• Only in finally

Which keyword is used to manually raise an exception?

• throws

• throw

• final

• raise