How is a try catch block used in java?
Try catch is used to mange exceptions raised from the code. A try block contains the code to be executed in a method. Multiple catch can precede the try block to handle different exceptions. A finally block can used to clean up resources used in the try block and is execute after the try and/or catch blocks are executed.
What is the standard way of reading data in a relational database?
Structured query language (sql) is used to read data. SQL can be used to join multiple tables together and restrict the number of rows return using a where clause. Data can be order in the result set using order by.
What is a sealed class in c#?
A sealed class in c# is a class that cannot be inherited.