Code a method that accepts no parameters and displays the radius (integer) and the ratio of area to circumference (perimeter of a circle) (double), for all circles with integer radii beginning with a radius of 1 and continuing while the ratio is less than 30 (exclusive). All variables should be declared with appropriate data types and initialised with sensible values. The code should use the appropriate repetition control structure.

Hint: The Math Class in Java Libraries has methods that provide the value of and power.