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"Operator used for concatenation of two or more strings is", string Multiple Choice Questions (MCQ) with choices +=', +, &, and || for computer science online degree programs. Learn string manipulation questions and answers with free online certification courses for IT certifications.
String Questions and Answers PDF Download eBook 20
MCQ: Operator used for concatenation of two or more strings is
- +
- +='
- &
- ||
A
MCQ: Functions in C# are a means of providing blocks of code that can
- be executed at any point in the an application
- decrease the efficiency of the compiler
- not be resued
- have some parameters
A
MCQ: Choose the correct output for the given code <br/> <code> static void Main() { int[] nums = { 1, 2, 3, 4, 5 }; Console.Write("Original order: "); foreach(int i in nums) Console.Write(i + " "); Array.Reverse(nums); Console.Write("Reversed order: "); foreach(int i in nums) Console.Write(i + " "); Console.WriteLine(); } </code>
- run time error
- 5,4,3,2,1
- compile time error
- 1,2,3,4,5
B
MCQ: Choose the correct statement
- Information is never lost during narrowing conversions.
- The CInteger() function can be used to convert a Single to an Integer.
- Widening conversions take place automatically.
- Assigning an Integer to an Object type is known as Unboxing.
C
MCQ: The complex data types used in C# are
- Enum
- Struct
- Arrays
- All of the above
D