Java Core Classes and Threads

In VB.NET, the Finalize method is the destructor equivalent called by the garbage collector during object cleanup. Dispose (option A) is for deterministic resource cleanup via the IDisposable pattern. Close (option B) is typically for closing resources like files/connections but not the destructor.

The Command object in ADO.NET has ExecuteNonQuery for INSERT/UPDATE/DELETE (returns affected rows), ExecuteScalar for single value queries, and ExecuteReader for multiple rows. ExecuteQuery and ExecuteParameter are not valid methods.

Java's 'write once, run anywhere' design allows the same code to run as standalone application or applet if designed properly without platform-specific dependencies.

Threads enable concurrent execution - a Java program can perform multiple tasks simultaneously like handling UI while processing data in background.

Java applets are distributed as compiled .class files (bytecode) that browsers download and execute via JVM. Source code or JDK license is not required for users.

The question asks which is NOT a method of DateTime object. GetMonth() is not a valid DateTime method in C# - the correct method is Month property. AddTicks(), GetHashCode(), and AddMilliseconds() are actual methods.

The difference between two DateTime values is stored in a TimeSpan object, which represents a time interval. String, Type, int, and None are not appropriate types for date differences.

The gets() function in C reads a single line from stdin into a char array until a newline. Note that gets() is deprecated and dangerous because it doesn't check buffer boundaries, leading to buffer overflows. Use fgets() instead in production code. There is no standard C function called getstring().

The ImportSheet method in QTP's DataTable object imports a sheet from an external Excel file into the runtime Data Table. The syntax is DataTable.ImportSheet(filename, sheetSource, sheetDest). ImportTable and SheetImport are not valid methods.

The Sync method (applied to Browser objects) waits for the browser to complete the current navigation before proceeding. This ensures the page is fully loaded. Wait is a time delay, WaitProperty checks object properties, and Exist checks for object presence.

The GetCellData(Row, Col) method retrieves data from a specific cell in an HTML Table object in QTP. You pass row and column indices as parameters. GetData and GetRowValue are not standard QTP table methods.

GetROProperty retrieves the actual runtime property value of an object during test execution, reflecting the current state of the application. This differs from GetTOProperty which fetches property values from the Object Repository (test object definition), not the live application. SetROProperty is incorrect as it doesn't exist: RO properties are read-only runtime values.

The methods run(), start(), setPriority(int), and getPriority() are standard methods defined in the java.lang.Thread class used to manage thread execution and priorities. Methods exit() and setAccess() do not exist in the Thread class, making them incorrect.

In ADO.NET, the DbConnection class (such as SqlConnection or OleDbConnection used in VB.NET) features methods like Open(), BeginTransaction(), and Close(). The Execute() method does not belong to the Connection object; execution is instead handled by a Command object (SqlCommand.ExecuteNonQuery, etc.). Note that Commit is on the transaction object, but Execute is definitely not on the connection.

Serialization is the process of converting the state of an object into a byte stream so that it can be saved to a file or transmitted over a network. Deserialization is the reverse process, which reconstructs the object from the byte stream.