int decimalPointOffset = stringNumber.indexOf("."); // get offset (base 0) of decimal point in this String? if (decimalPointOffset < 0) // (no decimal point anywhere) { System.out.println("Entered number must contain a decimal point."); continue; // go to top of loop to start over } We have not declared "stringNumber" and even when I declare it as a string it asks to be initialized. When I assign a value null, the program gives an error. What's a solution for this?

JAVA LANGUAGE