a2zinterviews

86.	What does assert() method do?
	In debug compilation, assert takes in a Boolean condition as a parameter, and shows the error dialog if the condition is false. The program proceeds without any interruption if the condition is true.
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87.	Why string are called Immutable data Type?
	The memory representation of string is an Array of Characters, So on re-assigning the new array of Char is formed & the start address is changed . Thus keeping the Old string in Memory for Garbage Collector to be disposed.
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88.	What is the difference between Convert.toString and .toString() method?
	Convert.toString handles null while i.tostring() does not handles null.
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89.	How many types of Transactions are there in COM + .NET ?
	There are 5 transactions types that can be used with COM+. Disabled Not Supported Supported Required Required New
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90.	What is a DataTable?
	A DataTable is a class in .NET Framework and in simple words a DataTable object represents a table from a database.
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