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Explain The different kinds of exceptions ?
Checked Exceptions : Environmental error in which cannot necessarily be detected through testing; e.g. broken socket, disk full, database unavailable, etc.
Errors : Virtual machine error: class not found, out of memory, no such method, illegal access to private field, etc.
Runtime Exceptions : Programming errors in which should be detected in testing: index out of bounds, null pointer, illegal argument, etc.
Checked exceptions must be handled at compile time. Runtime exceptions do not required to be. Errors frequent cannot be.
Project Description: Develop an android service app that will run on the background. The app has to get the users location (longitude and latitude) every 5 minutes or when th
Difference between Hash Map and Hash Table? The HashMap class is roughly equivalent to Hashtable, except that it is unsynchronized and allows nulls. (HashMap allows null values
In this assignment, you will create 5 objects and get them to interact together. You will create theatres for which patrons will buy tickets from a box office to watch movies.
It helps to resolve naming conflicts when different packages have classes with the same names. This also helps you prepare files within your project. As define : java.io package
What are the different scopes for Java variables? The scope of a Java variable is explained by the context in which the variable is declared. Therefore a java variable can have
Write a Java ADB client to perform the following- The client will read the contents of the file - invoice.txt. The first line of the file will display the type of the currency. The
EJB 2.0 has the additional advantages over the EJB 1.1 given below 1. Local interfaces : These are beans that can be needed locally, that means by the same Java Virtual Machi
Describe the Class or static Members ? A method or a field in a Java program could be declared static. That means the member belongs to the class rather than to an individual
what is multithreading in Java? Explain with example.
What is Constructors? Explain with an example? A constructor forms a new instance of the class. It initializes all the variables and does any work essential to prepare the clas
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