Microsoft Certified Solutions Developer (MCSD) Certification Practice Test

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Prepare for the Microsoft Certified Solutions Developer Certification Test. Use multiple choice quizzes with hints and explanations to boost your readiness. Excel on your test!

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What parameters are required for the Substring method?

Start index only
Start index and length
String and character
String and index

The correct answer is: Start index and length

The Substring method in programming is used to extract a portion of a string based on specified parameters. The correct answer involves both a start index and a length parameter. When using the Substring method, the start index indicates where in the original string the extraction should begin. The length parameter specifies how many characters to include in the returned substring. This functionality allows for more precise control over the extraction process, enabling developers to handle strings flexibly according to the required output. For example, if you have a string "Hello, World!" and you wish to extract "World", you would specify the start index at which "W" appears (which is 7 in this case) and a length of 5, as "World" consists of five characters. This method's design is essential for string manipulation tasks in programming, showing that understanding these parameters is crucial for effective string handling within applications.