Question

Choose the constructor type used to build strings from character array.

(a) public String(value)

(b) public String(char[ ] value, int startIndex, int length)

(c) public String(char[ ])

(d) all of the mentioned

This question was posed to me at a job interview.

My question is from Introduction of String Formatting topic in section Miscellaneous topics of C#

Answer 1

The correct option is (b) public String(char[ ] value, int startIndex, int length)

To explain: public String(char[ ] value) – This form of constructor constructs a string that contains characters in value

public String(char[ ] value, int startIndex, int length) -The second form uses length characters from value, beginning at the index specified by startIndex.