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Question { 886 }
Write a C++ Program to Display Number (Entered by the User).
Answer
/* C++ Program to Display Number (Entered by the User) */
#include
using namespace std;
int main()
{
int number;
cout << "Enter an integer :: ";
cin >> number;
cout << "
The Number entered is :: " << number<<"
";
return 0;
}
Output:
/* C++ Program to Display Number (Entered by the User) */
Enter an integer :: 8
The Number entered is :: 8
Process returned 0
| Is This Answer Correct ? | 0 Yes | 0 No |
Question { 918 }
Identify the error in the following program.
#include
void main()
{
int i = 0;
i = i + 1;
cout « i « " ";
/*comment *//i = i + 1;
cout << i;
}
Answer
| Is This Answer Correct ? | 0 Yes | 0 No |
Question { 2199 }
Write a program to display the following output using a single cout statement
Maths=90
Physics=77
Chemistry = 69
Answer
#include
using namespace std;
int main()
{
char *sub[]={"Maths","Physics","Chemestry"};
int mark[]={90,77,69};
for(int i=0;i<3;i++)
{
cout<
return 0;
}
Output:
Maths=90
Physics=77
Chemistry=69
| Is This Answer Correct ? | 0 Yes | 0 No |
Question { 2199 }
Write a program to display the following output using a single cout statement
Maths=90
Physics=77
Chemistry = 69
Answer
#include
using namespace std;
int main()
{
char *sub[]={"Maths","Physics","Chemestry"};
int mark[]={90,77,69};
for(int i=0;i<3;i++)
{
cout<
return 0;
}
Output:
Maths=90
Physics=77
Chemistry=69
| Is This Answer Correct ? | 0 Yes | 0 No |
Question { 1159 }
Write a C++ Program to find Square Root of a number using sqrt() function.
Answer
/* C++ Program to find Square Root of a number using sqrt() function */
#include
#include
using namespace std;
int main()
{
float sq,n;
cout<<"Enter any positive number :: ";
cin>>n;
sq=sqrt(n);
cout<<"
Square root of Entered Number [ "<
return 0;
}
Output:
/* C++ Program to find SquareRoot of a number using sqrt() function */
Enter any positive number :: 10000
Square root of Entered Number [ 10000 ] is :: 100
Process returned 0
| Is This Answer Correct ? | 0 Yes | 0 No |
Question { 944 }
Write a C++ Program to Find Sum and Average of three numbers.
Answer
/* C++ Program to Find Sum and Average of three numbers */
#include
using namespace std;
int main()
{
float a,b,c,sum,avg;
cout<<"Enter 1st number :: ";
cin>>a;
cout<<"
Enter 2nd number :: ";
cin>>b;
cout<<"
Enter 3rd number :: ";
cin>>c;
sum=a+b+c;
avg=sum/3;
cout<<"
The SUM of 3 Numbers [ "<
cout<<"
The AVERAGE of 3 Numbers [ "<
return 0;
}
Output:
/* C++ Program to Find Sum and Average of three numbers */
Enter 1st number :: 3
Enter 2nd number :: 4
Enter 3rd number :: 5
The SUM of 3 Numbers [ 3 + 4 + 5 ] = 12
The AVERAGE of 3 Numbers [ 3, 4, 5 ] = 4
Process returned 0
| Is This Answer Correct ? | 0 Yes | 0 No |
Question { 1162 }
Write a program to read two numbers from the keyboard and display the larger value on the screen
Answer
#include
using namespace std;
int main()
{
float a,b;
cout<<" Enter two values :"<
if(a>b)
cout<<" larger value = "<
cout<<" larger value = "<
}
OUTPUT:
Enter two values:10 20
Larger value:20
| Is This Answer Correct ? | 2 Yes | 0 No |
Question { 1049 }
Write a C++ Program to Find whether given Number is Odd or Even.
Answer
/* C++ Program to Find whether given Number is Odd or Even */
#include
using namespace std;
int main()
{
int a;
cout<<"Enter any positive number :: ";
cin>>a;
if(a%2==0)
{
cout<<"
The Entered Number [ "<
}
else
{
cout<<"
The Entered Number [ "<
}
return 0;
}
Output:
/* C++ Program to Find whether given Number is Odd or Even */
Enter any positive number :: 1327
The Entered Number [ 1327 ] is ODD Number.
Process returned 0
| Is This Answer Correct ? | 0 Yes | 0 No |
Question { 1061 }
Write a C++ Program to Reverse a Number using while loop.
Answer
/* C++ Program to Reverse a Number using while loop */
#include
using namespace std;
int main()
{
int no,rev=0,r,n;
cout<<"Enter any positive number :: ";
cin>>n;
no=n;
while(no>0)
{
r=no%10;
rev=rev*10+r;
no=no/10;
}
cout<<"
Reverse of a Number [ "<
return 0;
}
Output:
/* C++ Program to Reverse a Number using while loop */
Enter any positive number :: 123456
Reverse of a Number [ 123456 ] is :: [ 654321 ]
Process returned 0
| Is This Answer Correct ? | 0 Yes | 0 No |
Question { 1935 }
Write a program to input an integer from the keyboard and display on the screen “WELL DONE” that many times.
Answer
#include
using namespace std;
int main()
{
int n;
char *str;
str="WELL DONE";
cout<<" Enter an integer value ";
cin>>n;
for(int i=0;i
cout<
return 0;
}
OUTPUT:
Enter an integer value 5
WELL DONE
WELL DONE
WELL DONE
WELL DONE
WELL DONE
| Is This Answer Correct ? | 0 Yes | 2 No |
Question { 1074 }
Write a C++ Program to Find Sum and Average of n numbers using for loop.
Answer
/* C++ Program to Find Sum and Average of n numbers using for loop */
#include
using namespace std;
int main()
{
int i,n,x,sum=0;
float avg;
cout<<"How many numbers u want to enter :: ";
cin>>n;
for(i=1;i<=n;++i)
{
cout<<"
Enter number "<
sum+=x;
}
avg=(float)sum/(float)n;
cout<<"
Sum of "<
Average of "<
";
return 0;
}
Output:
/* C++ Program to Find Sum and Average of n numbers using for loop */
How many numbers u want to enter :: 6
Enter number 1 :: 1
Enter number 2 :: 2
Enter number 3 :: 3
Enter number 4 :: 4
Enter number 5 :: 5
Enter number 6 :: 6
Sum of 6 Numbers :: 21
Average of 6 Numbers :: 3.5
Process returned 0
| Is This Answer Correct ? | 0 Yes | 0 No |
Question { 1747 }
Write a program to read the values a, b and c and display x, where
x=a/b–c.
Test the program for the following values:
(a) a = 250, b = 85, c = 25
(b) a = 300, b = 70, c = 70
Answer
#include
using namespace std;
int main()
{
float a,b,c,x;
cout<<" Enter the value of a,b, &c :"<
if((b-c)!=0)
{
x=a/(b-c);
cout<<" x=a/(b-c) = "<
else
{
cout<<" x= infinity "<
return 0;
}
OUTPUT:
Enter the value of a,b,&c:300 70 70
X=infinity
| Is This Answer Correct ? | 2 Yes | 5 No |
Question { 1065 }
Identify the error in the following program.
include
using namespace std;
void main()
{
int num[]={1,2,3,4,5,6};
num[1]==[1]num ? cout<<"Success" : cout<<"Error";
}
Answer
So expression syntax error will be shown.
Correction : num[1] = num[1]? is the correct format.
| Is This Answer Correct ? | 0 Yes | 0 No |
Question { 1392 }
Identify the errors in the following program.
#include
using namespace std;
void main()
{
int i=5;
while(i)
{
switch(i)
{
default:
case 4:
case 5:
break;
case 1:
continue;
case 2:
case 3:
break;
}
i-;
}
}
Answer
continue;
The above code will cause the following situation:
Program will be continuing while value of i is 1 and value of i is updating. So infinite loop will be created.
Correction: At last line i- should be changed as i–;
| Is This Answer Correct ? | 0 Yes | 0 No |
Question { 1260 }
Write a C++ Program to Check Whether a character is Vowel or Consonant.
Answer
/* C++ Program to Check Whether a character is Vowel or Consonant */
#include
using namespace std;
int main()
{
char c;
int isLowercaseVowel, isUppercaseVowel;
cout << "Enter any character to check :: ";
cin >> c;
// evaluates to 1 (true) if c is a lowercase vowel
isLowercaseVowel = (c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u');
// evaluates to 1 (true) if c is an uppercase vowel
isUppercaseVowel = (c == 'A' || c == 'E' || c == 'I' || c == 'O' || c == 'U');
// evaluates to 1 (true) if either isLowercaseVowel or isUppercaseVowel is true
if (isLowercaseVowel || isUppercaseVowel)
{
cout<<"
The Entered Character [ "<
}
else
{
cout<<"
The Entered Character [ "<
}
return 0;
}
Output:
/* C++ Program to Check Whether a character is Vowel or Consonant */
Enter any character to check :: u
The Entered Character [ u ] is a Vowel.
Process returned 0
| Is This Answer Correct ? | 0 Yes | 0 No |
