Which of the following is correct way of concatenating two string objects in C++?
way 1:
string s1 = "hello";
string s2 = "world";
string s3 = s1 + s2;
way 2:
string s1 = "hello";
string s2 = "world";
string s3 = s1.append(s2);
way 3:
string s1 = "hello";
string s2 = "world";
string s3 = strcat(s1,s2);
way 1:
string s1 = "hello";
string s2 = "world";
string s3 = s1 + s2;
way 2:
string s1 = "hello";
string s2 = "world";
string s3 = s1.append(s2);
way 3:
string s1 = "hello";
string s2 = "world";
string s3 = strcat(s1,s2);A. 1 and 2
B. 2 and 3
C. 1 and 3
D. 1, 2 and 3
Answer: Option A
This Question Belongs to C Plus Plus Programming >> Classes And Objects In C Plus Plus
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