Logical Operators Examples in C++


Description:

Logical Operators are used to combine two or more conditions/constraints or to complement the evaluation of the original condition in consideration. The result of the operation of a logical operator is a boolean value either true or false. For example, the logical AND represented as ‘&&’ operator in C or C++ returns true when both the conditions under consideration are satisfied. Otherwise it returns false. Therfore, a && b returns true when both a and b are true (i.e. non-zero).

Example Program:

Here is the simple program logical operators examples in C++.

Source Code

#include <iostream>
using namespace std;
int main()
{
    int a=10,b=40,c;
    if(a && b)
    {
        cout<<"1st - Condition is true"<<endl ;
    }

    if(a||b)
    {
        cout<<"\n2nd - Condition is true"<<endl ;
    }
    a=0;
    b=10;
    if(a&&b)
    {
        cout <<"\n3rd - Condition is true"<<endl ;
    }
    else
    {
        cout <<"\n3rd - Condition is not true"<< endl ;
    }
    if(!(a&&b))
    {
        cout <<"\n5th - Condition is true"<< endl ;
    }
    return 0;
}
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Output

1st - Condition is true

2nd - Condition is true

3rd - Condition is not true

5th - Condition is true

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