We can combine more than one variable on the same line i.e.

  float number1,number2,number3; etc

Sometimes we want to mix the variable types used on the same line, this could cause problems, consider the following calculation

     C = a/10.0;

If the variable C is int, and a is float, the result of a/10.0 should produce a float. This can not be assigned in a variable C since C is of type int. Within C we can convert the variable types by use of force conversion (casting). i.e.

    C = (int) ( a/10.0) ;

  This forces the result of a/10.0 to become an integer which is the correct type for the variable C.