
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Question
Given the following local variable declarations:
string s1 = "Welcome to C++ World";
string s2, s3;
s2=s1;
s3 = s1 + s2;
What is the value of the following expressions (or ERROR)?
- cout<<s1<<endl;
- cout<<s2<<endl;
- cout<<s3<<endl;
- cout<<s1[1]<<endl;
- cout<<s1.length()<<endl;
- cout<<s1.at(1)<<endl;
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