Practice Objects and Classes –
What is the output of following program?
#include<iostream>
using namespace std;
class Base
{
public:
virtual void show() { cout<<" In Base
"; }
};
class Derived: public Base
{
public:
void show() { cout<<"In Derived
"; }
};
int main(void)
{
Base *bp = new Derived;
bp->show();
Base &br = *bp;
br.show();
return 0;
}What will be the output of the following program ?
Practice Constructors and Destructors –
What will be the output of the following program ?
#include<iostream.h>
class Logic {
public:
Logic() {
cout<< "Hello";
}
~Logic() {
cout<< "India";
}
};
int main() {
Logic obj;
return 0;
}Which of the following statements are correct?
Practice Function Overloading –
Which of the following statements are correct?
How many bytes will the structure variable samp occupy in
Practice OOPS Concepts –
How many bytes will the structure variable samp occupy in memory if it is defined as shown below?
class Trial {
int i;
Decimal d;
}
struct Sample {
private int x;
private Single y;
private Trial z;
}
Sample samp = new Sample();Which of the following is the correct way to define a variable of t
Practice OOPS Concepts –
Which of the following is the correct way to define a variable of the type struct Emp declared below?
struct Emp {
private String name;
private int age;
private Single sal;
}Which of the following is the correct way of setting values into th
Practice OOPS Concepts –
Which of the following is the correct way of setting values into the structure variable e defined below?
struct Emp {
public String name;
public int age;
public Single sal;
}
Emp e = new Emp();
Practice Structures, Unions, Enums – What is the output of the following program ?
#include
void main()
{
struct xx
{
int x=3;
char name[]="hello";
};
struct xx *s=malloc(sizeof(struct xx));
printf("%d",s->x);
printf("%s",s->name);
}
Practice Variable Number of Arguments – What will be output of the following “c” code?
#include
void main()
{
float me = 1.1;
double you = 1.1;
if(me==you)
printf("I love U");
else
printf("I hate U");
}
Practice Declarations and Initializations – What will be the output of the following program?
#include
#define max
int main(){
printf("%d",max);
return 0;
}
Practice Declarations and Initializations – What will be the output of the following program?
int main()
{
int const * p=5;
printf("%d",++(*p));
return 0;
}
Practice Functions – What is the output of the following problem ?
#include
int main() {
int factorial(int n);
int i,ans;
ans = factorial(5);
printf("
Factorial by recursion = %d
", ans);
return 0;
}
int factorial(int n)
{
if (n <= 1)
return (1);
else
return ( n * factorial(n-1));
}
Practice Structures, Unions, Enums – What is the output of the following problem ?
#include
struct {
int x;
int y;
union {
int id_no;
char *name;
}b;
}s,*st;
int main()
{
st = &s;
st->x=10;
st->b.id_no = 101;
printf("%d %d
",s.x,s.b.id_no);
return 0;
}
Practice Variable Number of Arguments – What will be output of the following “c” code?
#include
int main()
{
float i, j;
scanf(%f %f, &i, &j);
printf(%.2f %.3f, i, j);
return 0;
}
What will be the output for the give input 12.342 and 123.4568
Practice Control Instructions – What is the final value of i and final value of LOOPS ?
#include
int main()
{
int i,j,k,l,lc=0;
printf("Enter the number string:<1234 567>
");
scanf("%2d%d%1d",&i,&j,&k);
for(;k;k--,i++)
for(l=0;printf("%d %d
",i,l);)
printf("LOOPS= %d
", lc-1);
}
Practice Declarations and Initializations – What is the output of the following problem ?
#include
int main() {
int i,j;
j = 10;
i = j++ - j++;
printf("%d %d", i,j);
return 0;
}