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//Relational(Comparison) Operator

 //Relational(Comparison) Operator


  1. #include <iostream>
  2. using namespace std;
  3. int main()
  4. {
  5. int a = 21;
  6. int b = 10;//int use for integer value.

  8. //equal to
  9.     if( a == b) // (a=21 == b=10) is False; Therefore a is not equal to b.
  10.                //the two given values are equal to each other then result will be True, Otherwise it returns False.
  11. {
  12. cout <<"a is equal to b" << endl; //"cout" use for print line.
  13. }

  15. else
  16. {
  17. cout <<"a is not equal to b" << endl; //"endl" use for linebreak.
  18. }

  20. //not equal to
  21.     if( a != b) // (a=21 != b=10) is True; Therefore a is not equal to b.
  22.                // '!'not is True statement consider False and False statement consider to True.
  23.     {
  24.     cout <<"a is not equal to b" << endl; 
  25.     }

  27.     else
  28.     {
  29.     cout <<"a is equal to b" << endl;
  30.     }

  32. //less than
  33.     if( a < b) //(a=21 < b=10) is False; Therefore a is not less than b.
  34.               //the first value is less than the second value then result will be True, Otherwise it returns False.
  35.         { 
  36.         cout <<"a is less than b" << endl;
  37.         }

  39.         else 
  40.         {
  41.         cout <<"a is not less than b" << endl;
  42.         }

  44. //grater than
  45.     if( a > b)//(a=21 > b=10) is True; Therefore a is grater than b.
  46.               //the first value is grater than the second value then result will be True, Otherwise it returns False.
  47.         { 
  48.         cout <<"a is grater than b" << endl;
  49.         }

  51.         else 
  52.         {
  53.         cout <<"a is not grater than b" << endl;
  54.         }

  56. //less than or equal to
  57.     if( a <= b) //(a=21 <= b=10) is False; Therefore a is not less than or equal to  b.
  58.               //the first value is less than or equal to  the second value then result will be True, Otherwise it returns False.
  59.         { 
  60.         cout <<"a is less than or equal to b" << endl;
  61.         }

  63.         else 
  64.         {
  65.         cout <<"a is not less than or equal to b" << endl;
  66.         }

  68. //grater than or equal to
  69.     if( a >= b) //(a=21 >= b=10) is True; Therefore a is grater than or equal to b.
  70.                //the first value is grater than or equal to the second value then result will be True, Otherwise it returns False.
  71.         { 
  72.         cout <<"a is grater than or equal to b" << endl;
  73.         }

  75.         else 
  76.         {
  77.         cout <<"a is not grater than or equal to b" << endl;
  78.         }

  80. return 0;
  81. }


//Execute


//Output

/*

//equal to

a is not equal to b


//not equal to

a is not equal to b


//less than

a is not less than b


//grater than

a is grater than b


//less than or equal to

a is not less than or equal to b


//grater than or equal to

a is grater than or equal to b

*/



                                             //ThE ProFessoR