if-else statement

The if-else statement is a two-way decision-making statement. it is used to control the flow of execution of the statements and also used to carry out the logical test and then pick up one of the two possible. usually if-else elements in checking the condition.

Then. The syntax for the if-else statement is

                      

                         if(condition)

                         {

                            Statement 1;

                              }

                         else

                         {

                              Statement 2;

                          }

flow chart:-

           

this the flow chart for the if-else condition.

program:

#include<stdio.h> #include<conio.h> void main () {   int a=10,b=5;   if(10>5)   {                                                                    printf("easy to learn free coding");    }   else{    printf(“nothing to see");    }  getch(); }

output:

output:

easy to learn free coding

In this program, We have used if condition (10>5). Our condition is true then it will print our given statement. Suppose if our condition is false it will print the else below given statement. This the if-else element condition. 

nested if-else statement:

The if-else nested if the element is a multi-way decision-making statement, It is used to control the flow of execution of the statements when there are more than three alternatives. If the conditional is true then statements 1 are executed. If the conditional is false then the check for a second and goes till it finds a suitable matching condition. If there is no matching with any of the if conditions finally else blocks (default block) will be executed.

 then, the syntax for the nested if the condition

                                

                           if(condition 1)

                                         {    statement 1;

}

                          else if(condition 2)

{

 statement 2;

}

                          else if(condition 3)

{

  statement 3;

}

.

.

.

.

                              else {default statement;

>

}

flow chart:

     

this the flow chart for nested if condition.

program:

#include<stdio.h> #include<conio.h> void main() {   int a=5, b=5;   clrscr();    if ((a>1 )&&(b >1))    {      if(a==b){       printf ("both values are same");       }      else{        printf("both values are not same");       }    }    else{            printf ("the conditions has not true");         }  getch (); }

output:

output:

both values are same.

Then, the above the program 

 We are first to check our condition . I have given a>1 and b >1.  This condition is correct so it will come nested if statement,  nested if  statement  again  I have given one another, a condition which is a==b, then this condition  also true, so it   will be print both values are  same