Question

Consider the following image. What does the underlined section indicate?

public void Example(
Filewriter writer
​ {
= new FileWriter(new File("example.txt"));
​\} Select one or more:
a. An undeclared run-time exception error
b. An undeclared un-checked exception
c. An unhandled checked exception
d. An unhandled compile time exception
e. An unhandled run-time exception
f. A declared checked exception
g. An unhandled IOException

Answer 1

The underlined section in the given code indicates an unhandled checked exception. Java has two types of exceptions: checked and unchecked. This exception falls into the checked category and needs to be either caught or declared.

Step-by-step explanation:

The underlined section in the given code indicates an unhandled checked exception. In Java, there are two types of exceptions: checked and unchecked. Checked exceptions are those that the compiler forces the programmer to handle or declare in the method signature using the 'throws' keyword. Unchecked exceptions, on the other hand, do not require this handling or declaration.

In the given code, the underlined section involves file I/O operations, specifically creating a FileWriter object and specifying the file to write to. This operation can result in certain exceptions, such as IOException. Since the exception is not caught or declared in the method signature, it is considered an unhandled checked exception.

To handle the exception, you can use a try-catch block where the code inside the block attempts the file I/O operation, and if an exception occurs, it is caught and handled accordingly. Alternatively, you can also declare the exception in the method signature using the 'throws' keyword, indicating that the caller of the method should handle the exception.