C Language
Control statement
Fill in the blanks
1. How many control statement presents
in c 3
2. While is Entry controlled loop
3. Do while is Exit controlled loop
4. Write a expansion for stdio.h standard input output
5. Write a expansion for conio.h console input output
6. Write a syntax for for loop for(initialization;condition
checking;inc/dec)
7. Getch presents in which header
file conio.h
8. Printf presents in conio.h.[T/F] False
9. Clrscr presents in stdio.h [T/F]
False
10. What is the output for below
condition
for(int i=0;i<=8;i++)
{
if(i==4)
break;
}
Output :
123
Answer
the following Questions
(4 Marks)
1.Difference between
while and do-while
|
While Loop |
Do-While Loop |
|
Entry Controlled Loop |
Exit Controlled Loop |
|
While loop is pretested loop |
Do-while is post tested loop |
|
Syntax while(condition){ Statement; } |
Syntax do{ statement; }while(condition); |
|
#include<stdio.h> #include<conio.h> main(){ int a=5; clrscr(); while(a<5){ printf(“%d”,a); a++; } getch(); } |
#include<stdio.h> #include<conio.h> main(){ int a=5; clrscr(); do{ printf(“%d”,a); a++; } while(a<5); getch(); } |
2.Write a program for
leap year and not leap year
#include<stdio.h>
#include<conio.h>
main()
{
int a;
clrscr();
printf(“enter any year”);
scanf(“%d”,&a);
if(a%4==0){
printf(“Leap year”);
}
else{
printf(“Not Leap Year”);
}
getch();
}
3.Write a program for age
verification program
#include<stdio.h>
#include<conio.h>
main()
{
int a;
clrscr();
printf(“enter your age”);
scanf(“%d”,&a);
if(a>=18){
printf(“Eligible for vote”);
}
else{
printf(“Not eligible for vote”);
}
getch();
}
4.Write a program to
print pass or fail using if else
#include<stdio.h>
#include<conio.h>
main()
{
int a;
clrscr();
printf(“enter your mark”);
scanf(“%d”,&a);
if(a>=50){
printf(“Pass”);
}
else{
printf(“Fail”);
}
getch();
}
5.To print 1 to 100 using
for loop
#include<stdio.h>
#include<conio.h>
main()
{
int i;
clrscr();
for(i=1;i<=100;i++){
printf(“%d\n”,i);
}
getch();
}
6.Difference between
break and continue
BREAK
Syntax
break;
program:
#include<stdio.h>
#include<conio.h>
main()
{
int;
clrscr();
for(i=0;i<=10;i++)
{
if(i==5)
break;
printf("%d",i)
}
getch();
}
Continue
Syntax:
continue
program:
#include<stdio.h>
#include<conio.h>
main()
{
int i;
clrscr();
for(i=0;i<=10;i++)
{
if(i==5)
continue;
printf("%d",i)
}
getch();
}
7.Write a program for
return and goto
Return
return statement used to return from a
function
syntax
return expression;
eg.return
o;
program
#include<stdio.h>
#include<conio.h>
int main()
{
clrscr();
printf("hi hello");
return 0;
}
Goto
syntax
goto statement-lable;
program
#include<stdio.h>
#include<conio.h>
main()
{
int x=5,y=3;
if(x==y)
{
printf("EQUAL");
}
else{
goto ERROR;
ERROR:
printf("not equal")
}
getch();
}
8.Write a program to print no of days using switch case
#include<stdio.h>
#include<conio.h>
main()
{
int d;
clrscr();
printf("enter day");
scanf("%d",&d);
switch(d)
{
case 1:
printf("sunday");
break;
case 2:
printf("Monday");
break;
case 3:
printf("Tuesday");
break;
case 4:
printf("Wednesday");
break;
case 5:
printf("Thursday"));
break;
case 6:
printf("Friday");
break;
case 7:
printf("Saturday");
break;
default:
printf("enter valid
number");
}
getch();
}
Answer
the following Questions
(10 Marks)
1.Write a program to
print student marklist with grade system using Nested if
#include<stdio.h>
#include<conio.h>
main()
{
int m;
clrscr();
printf("enter your mark");
scanf("%d",&m);
if (m>=50)
{
if (m>=80)
{
printf("a grade");
]
else{
printf("b grade");
}
}
else
{
if(m>=30)
{
printf("c grade");
}
else{
printf("fail");
}
}
getch();
}
2. Explain the below
control statements program
*While
*do while
* if
*Break
*continue
*goto
while loop
(entry
controlled loop)
syntax:
while (condition)
{
statement;
}
program:
#include<stdio.h>
#include<conio.h>
main()
{
int i=5;
clrscr();
while(i<5)
{
printf("%d",i);
i++;
}
getch();
}
Do - While (Exit controlled loop)
syntax:
do{
statement;
}
while(condition);
program:
#include<stdio.h>
#include<conio.h>
main()
{
int i=5;
clrscr();
do(
printf("%d",i);
i++;
}
while(i<5);
getch();
}
#include <stdio.h>
#include<conio.h>
main()
{
int m;
clrscr();
printf("enter your
mark");
scanf("%d",&m);
if(m>=50)
{
printf("pass");
}
if(m<50)
{
printf("fail");
}
getch();
}
BREAK
Syntax
break;
program:
#include<stdio.h>
#include<conio.h>
main()
{
int;
clrscr();
for(i=0;i<=10;i++)
{
if(i==5)
break;
printf("%d",i)
}
getch();
}
Continue
Syntax:
continue
program:
#include<stdio.h>
#include<conio.h>
main()
{
int i;
clrscr();
for(i=0;i<=10;i++)
{
if(i==5)
continue;
printf("%d",i)
}
getch();
}
Goto
syntax
goto statement-lable;
program
#include<stdio.h>
#include<conio.h>
main()
{
int x=5,y=3;
if(x==y)
{
printf("EQUAL");
}
else{
goto ERROR;
ERROR:
printf("not equal")
}
getch();
}
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