OOPS Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

OOPS Interview Questions

Questions Answers Views Company eMail

Petrol pump mgt. system: To design a program that display an interface for the sale of the Petrol and then make the entries at the backend in the database.

Wipro,

1 4533

write a progra in c++ using class & object to find out wheather a given no. is prim or not.

2 20923

What is the difference between pass by value,pass by pointer,pass by reference in the catch block in the exception handling in c++

TCS,

1 4585

create a c++ program that will ask 10 numbers and display their sum using array.

1 4576

create a c++ program that will accepts 9 inputs using 3 by 3 array.

1 3303

This program numbers the lines found in a text file. Write a program that reads text from a file and outputs each line preceded by a line number. Print the line number right-adjusted in a field of 3 spaces. Follow the line number with a colon, then one space, then the text of the line. You should get a character at a time and write code to ignore leading blanks on each line. You may assume that the lines are short enough to fit within a line on the screen. Otherwise, allow default printer or screen output behavior if the line is too long (i.e., wrap or truncate). A somewhat harder version determines the number of spaces needed in the field for the line numbers by counting lines before processing the lines of the file. This version of the program should insert a new line after the last complete word that will fit within a 72-character line.

2128

Write a program to compute for numeric grades for a course. The course records are in a file that will serve as the input file. The input file is in exactly the following format: Each line contains a student's first name, then one space, then ten quiz scores all on one line. The quiz scores are in whole number and are separated by one space. Your program will take it input from this file and sends it output to a second file. The data in the output file will be exactly the same as the data in the input file except that there will be one additional number (of type double) at the end of each line. This number will be the average of the student's ten quiz scores. Use at least one function that has file streams as all or some of its arguments.

3090

namespace is working on which compiler?

3 5037

What is virtual Function.

Wipro,

1 4209

what is data hiding.

Wipro,

3 7099

What is memory leak and memory corruption?

TCS,

1 8102

What is sub classing in c++?

1 4000

difference between static and non-static variables?

2 4986

what are the different types of qualifier in java?

TCS,

2278

some one give d clear explanation for polymorphism

3 6477

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Un-Answered Questions { OOPS }

What is polymorphism give a real life example?

1045

What do you mean by abstraction?

1079

to find out the minimum of two integer number of two different classes using friend function

2149

program for insertion ,deletion,sorting in double link list

2696

What is the difference between static polymorphism and dynamic polymorphism?

1095

How do you use inheritance in unity?

1086

class CTest { public: void someMethod() { int nCount = 0; cout << "This is some method --> " << nCount; } }; int main() { CTest *pctest; pctest->someMethod(); return 0; } It will executes the someMethod() and displays the value too. how is it possible with our creating memory for the class . i think iam not creating object for the class. Thanks in Advance... Prakash

2289

#include #include #include #include void insert(struct btreenode **, int); void inorder(struct btreenode *); struct btreenode { struct btreenode *leftchild; struct btreenode *rightchild; int data; }; main() { struct btreenode *bt; bt=(struct btreenode *)NULL; int req,i=1,num; clrscr(); printf("Enter number of nodes"); scanf("%d",&req); while(i<=req) { printf("Enter element"); scanf("%d",&num); insert(&bt,num); i++; } inorder(bt); } void insert(struct btreenode **sr, int num) { if(*sr==NULL) { *sr=(struct btreenode *)malloc (sizeof(struct btreenode)); (*sr)->leftchild=(struct btreenode *)NULL; (*sr)->rightchild=(struct btreenode *)NULL; (*sr)->data=num; return; } else { if(num < (*sr)->data) insert(&(*sr)->leftchild,num); else insert(&(*sr)->rightchild,num); } return; } void inorder(struct btreenode *sr) { if(sr!=(struct btreenode *)NULL) { inorder(sr->leftchild); printf("\n %d",sr->data); inorder(sr->rightchild); } else return; } please Modify the given program and add two methods for post order and pre order traversals.

3773

How do you define a class in oop?

1131

What are two types of polymorphism?

1080

What is the point of polymorphism?

1039

What is oops with example?

1058

is there any choice in opting subjects like 4 out of 7

2197

What is oops in simple words?

1109

What is an interface in oop?

1054

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