7. Consider the statement: char x [8] = "ABC", y[] = "ABC";Which one of the following is true in C/C++?a. x == yb. strcmp (x, y) == 0c. sizeof (y) == sizeof (x)d. strlen (y) < strlen (x)8. Which one of the following statements is true about a C++ class constructor?A class constructor can be overloadeda.b.c.d.9. WhichNone of the above is true.one of the following statements is true about a C++ class destructor?a. A class destructor cannot be overloadedb. A class destructor's return type is voidc. Statements (a) and (b) are both trued. None of the above statements are trueA class constructor's return type is NOT voidAll the above is true.10. Which one of the following will be allocated on the program memory even before the main function isexecuted in a C program?}a. Local variablesb. Function argumentsc. Automatic variabled. String constants11. What will be the values of variables x, y, and z after the following code segment in a C++ program?int x = 5, y =-3, z;z = (x && y) + x++;a. x will be 5, y will be 3, and z will be 4b. x will be 5, y will be -3, and z will be 6and z will be 6.and z will be 7and z will be 5C.d.x will be 6, y will be -3,x will be 6, y will be -3,e. x will be 6, y will be -3,12. Consider the following small program:void foo (int *x, int *y, int *z){*z = (*x) * (*y);Which one of the following is a correct function call to function foo:a. foo (&a, &b, &c);b. foo (a [0], b[1], &C);c. foo (a, b, &c);class Box is called?d. foo (a[1, b[], &c);e. None of the answers are correct.13. Consider the following C++ code segment:1 int a = 4;2 int b;3int c = a;int d (a);5 b = a;int main () {int a [5] = (10, 20, 30);int *b = a;pow Box:int c= 5;//Assume Functioncall to foo goes hereWhich one of the following statements are correct? Select the best answer.a. All lines except lines 2 and 4 is known as initialization operation in C+=b. Lines 1, and 3 are known as initialization operation in C++c. Lines, 1, 3, and 5 are known as initialization operation in C++d. Lines 1, 3, and 4 are known as initialization operation in C++14. Consider the following C++ code segment:1 int a = 4;2 int b;3 int c = a;4 int d (a);5 b = a;In given code, which line(s) is known as assignment operation in C++?a. Line 1, 3, 4b. Only line 5c. Lines 1, 3, 4, and 5d. None of the above

Since there is more than one question, I have provided solutions for the first 3 questions.In step…

Consider the statement: char x[8] = "ABC", y[] = "ABC"; Which one of the following is true in C/C++? a. x == y b. strcmp (x, y) = 0 c. sizeof (y) ==sizeof (x) d. strlen (y) < strlen (x) - Which one of the following statements is true about a C++ class constructor? A class constructor can be overloaded A class constructor's return type is NOT void All the above is true. a. b. c. d. None of the above is true. . Which one of the following statements is true about a C++ class destructor? a. A class destructor cannot be overloaded b. A class destructor's return type is void c. Statements (a) and (b) are both true d. None of the above statements are true

Consider the statement: char x[8] = "ABC", y[] = "ABC"; Which one of the following is true in C/C++? a. x == y b. strcmp (x, y) = 0 c. sizeof (y) ==sizeof (x) d. strlen (y) < strlen (x) - Which one of the following statements is true about a C++ class constructor? A class constructor can be overloaded A class constructor's return type is NOT void All the above is true. a. b. c. d. None of the above is true. . Which one of the following statements is true about a C++ class destructor? a. A class destructor cannot be overloaded b. A class destructor's return type is void c. Statements (a) and (b) are both true d. None of the above statements are true

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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Concept explainers

Control structures

Control structures are block of statements that analyze the value of variables and determine the flow of execution based on those values. When a program is running, the CPU executes the code line by line. After sometime, the program reaches the point where it has to make a decision on whether it has to go to another part of the code or repeat execution of certain part of the code. These results affect the flow of the program's code and these are called control structures.

Switch Statement

The switch statement is a key feature that is used by the programmers a lot in the world of programming and coding, as well as in information technology in general. The switch statement is a selection control mechanism that allows the variable value to change the order of the individual statements in the software execution via search.

Question

7. Consider the statement: char x [8] = "ABC", y[] = "ABC";
Which one of the following is true in C/C++?
a. x == y
b. strcmp (x, y) == 0
c. sizeof (y) == sizeof (x)
d. strlen (y) < strlen (x)
8. Which one of the following statements is true about a C++ class constructor?
A class constructor can be overloaded
a.
b.
c.
d.
9. Which
None of the above is true.
one of the following statements is true about a C++ class destructor?
a. A class destructor cannot be overloaded
b. A class destructor's return type is void
c. Statements (a) and (b) are both true
d. None of the above statements are true
A class constructor's return type is NOT void
All the above is true.
10. Which one of the following will be allocated on the program memory even before the main function is
executed in a C program?
}
a. Local variables
b. Function arguments
c. Automatic variable
d. String constants
11. What will be the values of variables x, y, and z after the following code segment in a C++ program?
int x = 5, y =-3, z;
z = (x && y) + x++;
a. x will be 5, y will be 3, and z will be 4
b. x will be 5, y will be -3, and z will be 6
and z will be 6.
and z will be 7
and z will be 5
C.
d.
x will be 6, y will be -3,
x will be 6, y will be -3,
e. x will be 6, y will be -3,
12. Consider the following small program:
void foo (int *x, int *y, int *z)
{
*z = (*x) * (*y);
Which one of the following is a correct function call to function foo:
a. foo (&a, &b, &c);
b. foo (a [0], b[1], &C);
c. foo (a, b, &c);
class Box is called?
d. foo (a[1, b[], &c);
e. None of the answers are correct.
13. Consider the following C++ code segment:
1 int a = 4;
2 int b;
3
int c = a;
int d (a);
5 b = a;
int main () {
int a [5] = (10, 20, 30);
int *b = a;
pow Box:
int c= 5;
//Assume Function
call to foo goes here
Which one of the following statements are correct? Select the best answer.
a. All lines except lines 2 and 4 is known as initialization operation in C+=
b. Lines 1, and 3 are known as initialization operation in C++
c. Lines, 1, 3, and 5 are known as initialization operation in C++
d. Lines 1, 3, and 4 are known as initialization operation in C++
14. Consider the following C++ code segment:
1 int a = 4;
2 int b;
3 int c = a;
4 int d (a);
5 b = a;
In given code, which line(s) is known as assignment operation in C++?
a. Line 1, 3, 4
b. Only line 5
c. Lines 1, 3, 4, and 5
d. None of the above

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