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Practical-42

Write a java program which uses finally Statement.​

Answer 1:​

Introduction​

Java’s finally statement is designed to always execute regardless of the result of the try/catch statement, and acts as a catch-all for operations that must complete even in the face of an exception. A finally statement ensures code is executed at the end of a try/catch block, no matter if an exception is thrown or not. This code is useful for clean-up operations, such as closing files and connections.

Code​

try {
    int [] numbers = {1,2,3};
    System.out.println(numbers[5]);
} catch (ArrayIndexOutOfBoundsException e) {
    System.err.println("There was an exception thrown: " + e.toString());
} finally {
    System.out.println("The finally statement has been executed.");
}

Output​

There was an exception thrown: java.lang.ArrayIndexOutOfBoundsException: 5
The finally statement has been executed.
Explanation

The try/catch statement captures the exception when an incorrect index of an array is used. The finally statement then executes after the catch block, displaying the message: “The finally statement has been executed.”