pps (c language {conditional statement })

CONDITIONAL STATEMENT ?

CONDITIONAL STATEMENT ARE USED IN PROGRAMMING TO MAKE DECISIONS BASED ON SPECIFIC CONDITION . THEY ALLOW A PROGRAM TO EXECUTE DIFFERENT BLOCKS OF CODE DEPENDING ON WHETHER A CONDITION EVALUATES AS TRUE OR FALSE .

TYPES OF CONDITIONAL STATEMENT :

 1)IF STATEMENT :EXECUTES A BLOCK OF CODE IF THE CONDITION IS TRUE .

SYNTAX :

IF(CONDITION ){

//CODE TO EXECUTE IF CONDITION IS TRUE }

EXAMPLE:

#include<stdio.h> // header

file

int main () {//main fun.

int age ;

printf("ENTER AGE =");

scanf("%d",&age);

if(age>=18){//if statement

+ in condition we are

using conditional operator

    printf("HE OR SHE CAN

VOTE");

}

return 0;//return int value.

}

2)IF-ELSE STATEMENT :EXECUTE ONE BLOCK OF IF CONDITION IS TRUE AND IF IF STATEMENT IS NOT TRUE ELSE BLOCK EXECUTE.

SYNTAX:

IF(CONDITION ){

//CODE IF CONDITION IS TRUE}

ELSE {

//CODE IF CONDITION IS FALSE}

EXAMPLE:

#include<stdio.h> // header

file

int main () {//main fun.

int age ;

printf("ENTER AGE =");

scanf("%d",&age);

if(age>=18){//if statement

+ in condition we are

using conditional operator

    printf("HE OR SHE CAN

VOTE");

}

else {

    printf("HE OR SHE CANNOT

VOTE BECAUSE THEIR AGE

IS LESS THAN 18");

}

return 0;//return int value.

}

3)NESTED IF STATEMENT :AN IF STATEMENT INSIDE ANOTHER IF STATEMENT .

SYNTAX:

IF(CONDITION1){

IF(CONDITION2){

//CODE IF BOTH CONDITION ARE TRUE}}

EXAMPLE:

#include<stdio.h> // header

file

int main () {//main fun.

int num;

printf("ENTER NO.=");

scanf("%d",&num);

if(num>0)//if statement

+in condition relational

op. is use

{printf("THE NUM IS POSIIVE \n");

//NESTED IF STATEMENT

if (num %2==0)//in condn

istly we use arithmetic op.

than relational (equalty)op.

{

    printf("THE NO. IS

EVEN \n");

}

return 0;//return int value.

}

4)NESTED IF ELSE STATEMENT :AN IF-ELSE STATEMENT INSIDE ANOTHER.

SYNTAX:

IF (CONDITION ){

// PRINTF STATEMENT .

IF(CONDITION 2){

//PRINTF STATEMENT .}

ELSE {

//ELSE STATEMENT OF CONDITION 2}

}//IST IF CLOSE.

ELSE{
//ELSE OF CONDITION 1}.

EXAMPLE:

#include<stdio.h> // header

file

int main () {//main fun.

int num;

printf("ENTER NO.=");

scanf("%d",&num);

if(num>0)//if statement

+in condition relational

op. is use

{printf("THE NUM IS

POSIIVE \n");

//NESTED IF STATEMENT

if (num %2==0)//in condn

istly we use arithmetic op.

than relational (equalty)op.

{

    printf("THE NO. IS

EVEN \n");

}

else{

    printf("THE NO. IS ODD");

}

}

else{

    printf("THE NO. IS

NEGATIVE");

}

return 0;//return int value.

}

5)SWITCH STATEMENT :USED WHEN MULTIPLE CONDITIONS DEPEND ON A SINGLE VARIABLE.

SYNTAX:

SWITCH (VARIABLE){

CASE VALUE1:

//CODE FOR VALUE1

BREAK;

CASE VALUE2:

//CODE FOR VALUE2

BREAK;

DEFAULT:

//CODE IF NONE OF THE CASE MATCHES.

EXAMPLE:

#include<stdio.h> // header

file

int main () {//main fun.

char signal;

printf("ENTER TRAFFIC

LIGHT COLOR (R/Y/G)");

scanf("%c",&signal);

switch (signal)

{

case 'R':

case 'r':

    printf("STOP ! THE LIGHT

IS RED\n");

    break;

case 'Y':

case 'y':

printf("SLOW DOWN ! THE

LIGHT IS YELLOW\n");

break;

case 'G':

case 'g':

printf("GO ! THE LIGHT IS

GREEN \n");

break;

default:

printf("INVALID INPUT !

ENTER R ,Y,G\n");

    break;

}

return 0;//return int value.

}