Please answer the following three definitions:Assuming s1 is a string object and cs1 is an array of characters, which of the following is a valid statement?cs1 = s1;strcpy(cs1,s1);cs1 = s1.c str();s1 = cs1;If class A is a friend class of B, which of the following is true?All member-functions of class A are friends of class BAll member-functions of class B are friends of class AAll friend functions of class A can access private variables of class BThe accessor and mutator functions of class B cannot be used in class AWhich of the following represents the proper declaration of a function that returns the maximum of two values? template <typename T> T maximum(T value1, T value2);template <T class> T maximum(T value1, T value2);template <class T> T maximum(value1, value2);template <T typename> T maximum(value1, value2);

The valid statement among the given options is 2.strcpy(cs1, s1);. This is because strcpy is a…

Answered: s1,s1); cs1 = s1.c str(); s1 = cs1; If…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Please answer the following three definitions:

Assuming s1 is a string object and cs1 is an array of characters, which of the following is a valid statement?
1. cs1 = s1;
2. strcpy(cs1,s1);
3. cs1 = s1.c str();
4. s1 = cs1;
If class A is a friend class of B, which of the following is true?
1. All member-functions of class A are friends of class B
2. All member-functions of class B are friends of class A
3. All friend functions of class A can access private variables of class B
4. The accessor and mutator functions of class B cannot be used in class A
Which of the following represents the proper declaration of a function that returns the maximum of two values?
1. template <typename T> T maximum(T value1, T value2);
2. template <T class> T maximum(T value1, T value2);
3. template <class T> T maximum(value1, value2);
4. template <T typename> T maximum(value1, value2);

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