Program to find the positive and negative number
Logic:
The number is positive
if number > 0
For example: 4 > 0 so 4 is a positive number
The number is negative
if number < 0
For example: -4 < 0 so -4 is a negative number
Flowchart of a positive-negative number
SFT (Shamil’s Flow Table )
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#include<iostream> using namespace std; int main() { int number; cout<<"Enter any number"<<endl; cin>>number; if(number<0) { cout<<"Number is negative"<<endl; } else { cout<<"Number is positive"<<endl; } }
Output:
Program with Comments:
#include<iostream> //Adding the header file iostream using namespace std; //Adding the namespace int main() //Starting of integer type main function { //Starting of main function int number; //eclaration of integer type variable named as number. Variable number can have any value. cout<<"Enter any number"<<endl; //Display message. cin>>number; //User input the integer value and value is stored in variable number. if(number<0) //Value in variable number is checked by if condition. If the value of a number is less than 0, then the number is negative and control moves to the statement 9.But if the value of a number is greater than 0, then the number is positive and control moves to the statement 12. { //start of if body cout<<"Number is negative"<<endl; //Display the message that number is negative. } //ending of if else Control arrives at statement 12 if the condition is false at statement 8. { cout<<"Number is positive"<<endl; //Display message that number is positive. } //Ending of else. } //Ending of main function.
C++ Exercise | If else Statement