// if-else statement is a conditional control statement.
// it is used to perform opraitons based on some conditions.
// there are four types of if-else statement:_ if statement,
if-else statement, if else if ladder,
// there are besic flow charts of all those in the notes.
// syntex for if statement like this
/* if ("condition")
{
"if code"
}
*/
// syntex for if else statement like this :_
/* if ("condition")
{
"if code" (if condition true )
}
else{
"else code" (if statement false)
}*/
// syntex for if _else if ladder like this
/* if (condition_1)
{
"condition_1 code" (condition_1 true)
}
else if (condition_2)
{
"condition_2 code" (condition_2 true)
}
..
..
..
..
{at last}
else (condition_n)
{
"condition_n code" ( all previous conditions are flase)
}
*/
project_1 (if only)
#include <stdio.h>
int main()
{
int age;
printf("enter your age:\n");
scanf ("%d",&age);
printf ("your age is %d as you entered, ", age);
if (age>18)
{
printf ("so you can vote!");
}
return 0;
}
project_2 (if-else)
#include <stdio.h>
int main()
{
int age;
printf("enter your age:\n");
scanf ("%d",&age);
printf ("your age is %d as you entered, ", age);
if (age>=18)
{
printf ("so you can vote!");
}
else
{
printf ("so you can't vote!");
}
return 0;
}
project_3( if-else if ladder)
#include <stdio.h>
int main()
{
int age;
printf("enter your age:\n");
scanf ("%d",&age);
printf ("your age is %d as you entered, ", age);
if (age>=18)
{
printf ("so you can vote for adults!");
}
else if (age>10)
{
printf("so you can vote for teenagers!");
}
else {
printf ("so you can't vote.");
}
return 0;
}
// project:_9 (password match or not)
#include <stdio.h>
int main()
{
int a;
printf ("enter the last digits of your password: ");
scanf ("%d",&a);
if (a==4321)
{
int num1, num2;
printf ("enter a new numerical password: ");
scanf ("%d", &num1);
printf ("re-enter your new numerical password: ");
scanf ("%d", &num2);
if (num1==num2)
{
printf ("congratulations! your password has changed sucessfully.");
}
else{
printf ("sorry! entered & reentered passwords doesn't matched.");
}
}
else{
printf("password is incorrect.");
}
return 0;
}
output:_
PS E:\c programming> cd "e:\c programming\" ; if ($?) { gcc new.c -o new }
; if ($?) { .\new }
enter the last digits of your password: 321
password is incorrect.
PS E:\c programming> cd "e:\c programming\" ; if ($?) { gcc new.c -o new }
; if ($?) { .\new }
enter the last digits of your password: 4321
enter a new numerical password: 54321
re-enter your new numerical password: 4321
sorry! entered & reentered passwords doesn't matched.
PS E:\c programming> cd "e:\c programming\" ; if ($?) { gcc new.c -o new }
; if ($?) { .\new }
enter the last digits of your password: 4321
enter a new numerical password: 54321
re-enter your new numerical password: 54321
congratulations! your password has changed successfully.
// project_15 (election pole student council)
#include <stdio.h>
int main ()
{
int num,a,b,c;
printf ("enter your roll number: ");
scanf ("%d", &num);
printf ("enter your age: ");
scanf ("%d", &a);
printf ("your age is %d as you entered,",a);
if (a>=18)
{
printf (" so you vote for youth club.\n");
printf ("whom you want to give your vote?\n",b);
printf ("press 1 to vote for santa:\n",b);
printf ("press 2 to vote for banta:\n",b);
printf ("press 3 to vote for nota:\n",b);
scanf ("%d", &b);
printf ("you successfully voted for %d.", b);
}
else if (a>13)
{
printf (" so you vote for teenage club.\n");
printf ("whom you want to give your vote?\n",c);
printf ("press 01 to vote for ravi:\n",c);
printf ("press 02 to vote for vijay:\n",c);
printf ("press 03 to vote for nota:\n",c);
scanf ("%d", &c);
printf ("you successfully voted for %d.", c);
}
else {
printf (" sorry! you aren't eligible to vote for the
student council.");
}
return 0;
}
output:_
enter your roll number: 3
enter your age: 21
your age is 21 as you entered, so you vote for youth club.
whom you want to give your vote?
press 1 to vote for santa:
press 2 to vote for banta:
press 3 to vote for nota:
1
you successfully voted for 1.
No comments:
Post a Comment
here we are to help you.you can watch videos and get information about :- (1) scientific facts (2) education (3) gaming (4) music (5) lyrics (6) cartoons and many more.So keep watching keep learning, thank you.