If Else If Ladder in C++
If else statement Definition :
If Else If ladder statement is a series of conditions checked in order. When a condition is met, the program executes the corresponding block of code and bypasses the rest of the ladder.
Syntax:
if(condition 1){
// statements to be executed if condition 1 is true;
}
else if(condition 2){
// statements to be executed if condition 2 is true;
}
else{
// statements to be executed if all conditions are false;
}
Working of if else if ladder statement :
- Step 1 : In the first step, condition 1 is checked whether it is true or false.
- Step 2 : If condition 1 is True, if block will be executed for performing the operations.
- Step 3 : If the condition 1 is False , condition 2 of else if block will be checked.
- Step 4 : If condition 2 is True, else if block will be executed for performing the operations.
- Step 5 : If all the conditions are False , else block will be executed for performing the operations.
Implementation of If else statement in C++
Example 1:
#include <iostream>
using namespace std;
int main() {
int i=5;
if(i>1){ // checking the condition 1 and take decision
cout<<"PrepInsta is one of the best for placement preparation";
}
else if(i==1){ // checking the condition 1 and take decision
cout<<"Want to get placed? Check PrepInsta Prime.";
}
else{
cout<<"PrepInsta";
}
return 0;
}
Output:
PrepInsta is one of the best for placement preparation
In the above example , the value of i initialize as 5 and when the condition of if (i>1) is checked , this is taken as true and block if is executed and “PrepInsta is one of the best for placement preparation” will be print on the output screen.
Example 2:
#include<bits/stdcc+.h>
using namespace std;
int main() {
int i=1;
if(i>1){ // checking the condition 1 and takes decision
cout<<"PrepInsta is one of the best for placement preparation";
}
else if(i==1){ // checking the condition 2 and takes decision
cout<<"Want to get placed? Check PrepInsta Prime.";
else{
cout<<"PrepInsta";
}
return 0;
}
Output:
Want to get placed? Check PrepInsta Prime.
In the above example , the value of i initialize as 1 and when the condition of if (i>1) is checked , this is taken as false and then else if condition (i==1) is checked which is true and block else if will be executed. Therefore “Want to get placed? Check PrepInsta Prime.” will print on the output screen.
Example 3:
#include<bits/stdc++.h>
using namespace std;
int main() {
int i=0;
if(i>1){ // checking the condition 1 and takes decision
cout<<"PrepInsta is one of the best for placement preparation";
}
else if(i==1){ // checking the condition 2 and takes decision
cout<<"Want to get placed? Check PrepInsta Prime.";
else{
cout<<"PrepInsta";
}
return 0;
}
Output:
PrepInsta
In the above example , the value of i initialize as 1 and when the condition of if (i>1) is checked , this is taken as false and then else if condition (i==1) is checked which is false. At last else block will be executed. Therefore “PrepInsta” will print on the output screen.
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