I need to write this method in a class for java. I am having trouble getting it to work properly. Help woul be appreciated. I have attached a smaple of the code I have used. I am limited on techniques I am allowed to used based on what was learned in the class. If you could please help me edit the code I am using without changing it drastically, that would be great. You can ignore the poly.addCoefficient() and number was declared earlier in the program. Thank you!

public void setPolynomial) setPolynomial() prompts the user to "Type in the polynomials in increasing powers:" and processes the polynomials provided by the user using Scanner until the user enters a blank line. If the user enters a non-double value, the program should print "Invalid input, please try again.", and wait for additional coefficient input