SECTION A (15 MARKS) Answer ALL Questions. Each Question carries ONE Mark. 1 (a) Choose the correct answer: (10 Marks)

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1 SECTION A (15 MARKS) Answer ALL Questions. Each Question carries ONE Mark. 1 (a) Choose the correct answer: (10 Marks) 1. The function is used to reduce function call a. Overloading b. Inline c. Recursive d. Empty 2. The function is a function that calls itself a. Recursive b. Overloaded c. Math d. Inline 3. Arrays with two or more dimensions are known as arrays a. Single dimensional b. Dimensional c. Multidimensional d. None 4. is the size of the array a. Data b. Element c. pointer d. Dimension 5. A is a group of related records a. Database b. File c. Bit d. Register 6. A pointer must have a value before you can it a. Address b. Declare c. Dereference d. None 7. Passing arguments by, avoids memory and time cost of duplicating the actual parameters. a. Value b. Reference c. Default d. None 8. Creating an object opens a file for input. a. ifstream b. ofstream c. Fstream d. stream 9. is the standard output stream object. a cin b cout c. clog d. cerr 10. variables contain memory address as their values. a. Function b. Array c. Pointer d. String

2 1 (b) Fill in the Blanks: (5 Marks) 1. A function Prototype tells the compiler the name of function, return type and its arguments. 2. The elements of an array can be initialized in the array declaration using initializer list. 3. Const qualifier enables the programmer to inform the compiler that the value of a particular variable should not be modified. 4. Cin is the standard input stream object. 5. Each file ends with an End of File marker. SECTION B (5 x 3 = 15 MARKS) Answer any FIVE Questions. Each Question carries THREE Marks. 1. Write the general format for function definition? Return type function name( parameter ) body of the function 2. Write a C++ program to find the size of integer variable using sizeof operator. int main( ) int x; cout<<"size of int X = "<<sizeof(x); return 0;

3 3. Find out 6 errors and write the correct program code. ; #include conio.h #include <conio.h> use namespace std; viad main( ) void main( ) int a[5]=1,3,5,7,9; int a[5]=1,3,5,7,9; int sum=0; int sum=0; for(int i=0;i<=5;i++) for(int i=0;i<=5;i++) sum +=ai; cout<< Sum of sum +=a[i]; array elements = <<sum; cout<< Sum of array _getch( ); elements = <<sum; _getch( ); 4. What are the different file open modes available in C++? member stands constant for access in input File open for reading: the internal stream buffer supports input operations. out * output File open for writing: the internal stream buffer supports output operations. binary binary Operations are performed in binary mode rather than text. ate at end The output position starts at the end of the file. app All output operations happen at the end of the file, appending to its existing append contents. trunc truncate Any contents that existed in the file before it is open are discarded. 5. Name the 2 types of arrays? Give example for the array initialization. The 2 types of arrays are : 1. Single dimensional Array 2. Multi dimensional Array Initializing Single dimensional Array: int a[5]=2,4,6,8,10; Initializing Multi dimensional[2d] Array: a= int a[2][3]= 2,4,6, 1,3,5;

4 SECTION C (2 x 5 = 10 MARKS) Answer any TWO Questions. Each Question carries FIVE Marks. 8. Write a C++ program to read and print a sequential file. #include<fstream> #include<conio.h> void main() ofstream fout; fout.open("test.dat"); fout<<" \n"; fout<<"siva\n"; fout.close(); int rno; char name[20]; ifstream fin; fin.open("test.dat"); cout<<"contents of the file:\n\n"; while(fin>>rno>>name) cout<<"reg No = "<<rno<<endl; cout<<"name="<<name<<endl; fin.close(); _getch(); Write a C++ program to initialize and display a 3 X 2 array. int main( ) int array[3][2]=1,2,3,4,5,6; for(int i=0;i<3;i++) for(int k=0;k<2;k++) cout << "["<<i+1<<"]"<<"["<<k+1<< "]="<< array[i][k]<<endl; return 0;

5 9. Write a C++ program to find sum of 2 integer numbers and 2 floating point numbers using function overloading. int sum(int x,int y) return x+y; float sum(float z,float q) return z+q; int main( ) int e=2,m=9; float f=43.3,t=25.2; cout<<sum(e,m)<<endl; //int cout<<sum(f,t)<<endl; //float return 0; مالحظة:اكواد البرامج قد التكون مشابهة للموجودة في المذكرات االخرئ او الكتاب,اعتمدت في الحل على االكواد البسيطة سهلة الفهم. تاكد من مراجعة جميع النماذج واختيار ما يناسبك,وتذكر المذكرات والنماذج ال تغني عن الكتاب. أتمنى لكم التوفيق. Answers by Fahad. cscbank.info

CSc Introduc/on to Compu/ng. Lecture 19 Edgardo Molina Fall 2011 City College of New York

CSc Introduc/on to Compu/ng. Lecture 19 Edgardo Molina Fall 2011 City College of New York CSc 10200 Introduc/on to Compu/ng Lecture 19 Edgardo Molina Fall 2011 City College of New York 18 Standard Device Files Logical file object: Stream that connects a file of logically related data to a program