Explain or provide an example showing how each of the following Exceptions could arise. a) ArithmeticException b) NullPointerException c) NumberFormatException d) IndexOutOfBoundsException

-

Explain or provide an example showing how each of the following Exceptions could arise.
a)       ArithmeticException
b)       NullPointerException
c)       NumberFormatException
d)       IndexOutOfBoundsException

Answer:
a)       An arithmetic operation could not take place because of an illegal action such as division by zero or square root of a negative number
b)       An object was not instantiated (it had the value null) before a message was passed to it
c)       An expected value for a numeric operation was not a legal number, such as trying to parse a String value to create an equivalent int where the String contains a non-digit character
d)       A numeric parameter used as an index into an object such as an array, String or Vector was out of range, such as charAt(-1)

Comments

Post a Comment

Popular posts from this blog

Agile Method Advantages and Disadvantages

-
Agile Method Advantages and Disadvantages Agile, or adaptive, methods are very flexible and efficient in dealing with change. They are popular because they stress team interaction and reflect a set of community-based values. Also, frequent deliverables constantly validate the project and reduce risk. However, some potential problems exist. For example, team members need a high level of technical and interpersonal skills. Also, a lack of structure and documentation can introduce risk factors. Finally, the overall project may be subject to significant change in scope as user requirements continue to evolve during the project.
Read more

What is the Monroe Kellie Hypothesis and why is this important to your patient with increased intracranial pressure?

-
What is the Monroe Kellie Hypothesis and why is this important to your patient with increased intracranial pressure?  Answer: In the adult, the rigid cranial cavity created by the skull is normally filled to capacity with three essentially non-compressible elements: the brain (80%), cerebrospinal fluid (8%) and blood (12%). A state of dynamic equilibrium exists; if the volume of any of the three components increases, the volume of the others must decrease to maintain normal pressures within the cranial cavity. This is known as the Monro-Kellie hypothesis.
Read more

Summarize effective communication strategies in organizational hierarchies, and review the role and relevance of the organizational grapevine

-
Summarize effective communication strategies in organizational hierarchies, and review the role and relevance of the organizational grapevine Some companies try to encourage communication through workspace design, as well as through Web-based communication channels. some executives also meet directly with employees, such as through management by walking around (MBWA) and town hall meetings, to facilitate communication across the organization. In any organization, employees rely on the grapevine, particularly during times of uncertainty. The grapevine is an unstructured and informal network founded on social relationships rather than organizational charts or job descriptions. Although early research identified several unique features of the grapevine, some of these features may be changing as the Internet plays an increasing role in grapevine communication.
Read more