Java Programming - MCQ Practice Questions

What will be the output of this code? try { try { throw new Exception("Inner"); } catch(Exception e) { throw new RuntimeException("Outer"); } } catch(RuntimeException e) { System.out.println("Caught: " + e.getMessage()); }

In Java 8+, when using try-with-resources with multiple AutoCloseable resources, in what order are they closed?

Which of the following exceptions would NOT be caught by catching Exception class in Java?

Consider a scenario where you have nested try-catch blocks. If both inner and outer catch blocks match the thrown exception type, which one executes?

What does the getSuppressed() method of Throwable class return in context of try-with-resources?

In Java, when an exception is thrown in a try block and caught in a catch block, if the catch block also throws an exception, what happens to the original exception?

What is the default buffer size of BufferedReader in Java?

What happens when you try to read from a closed stream in Java?

Which of the following is a filtered stream?

Which class is used to read primitive data types from a stream?

Which of the following creates a bridge between character and byte streams?

What is the difference between FileInputStream and BufferedInputStream?

Which class allows reading and writing objects to a stream?

What is the mark() method used for in BufferedReader?

Which of the following statements will correctly read a file line by line?

What is the purpose of the skip() method in InputStream?

A Java program needs to read a file containing 10 million integers. Which approach would be most memory-efficient?

A serialized object contains a field marked as 'transient'. What happens to this field when the object is deserialized?

Which statement about ObjectOutputStream.reset() is correct?

When implementing Externalizable interface, which method is mandatory?