Fill in the proper blank. JDB is used for finding and fixing ____ inside the Java program.

Don't give me AI generated answer or plagiarised answer. If I see these things I'll give you multiple downvotes and will report immediately.

QUICKLY please. Thank you. Please answer in python quickly  Below is code that defines a Quadrilateral class (a shape with four sides), which has four floating point instance variables that correspond to the four side lengths: import math class Quadrilateral:     def __init__(self,a,b,c,d):           self.a = a           self.b = b           self.c = c           self.d = d      def perimeter(self):            return self.a + self.b + self.c + self.d      def area(self):            print("Not enough information")      def __lt__(self, other):             return self.perimeter() < other.perimeter()   Define a Rectangle class that inherits from Quadrilateral, with the following methods: __init__(self, length, width): Override the __init__ method so that the Rectangle constructor only takes in two floating point numbers. Your constructor for Rectangle should only consist of a call to Quadrilateral’s constructor: don’t define any new instance variables. Override the area method to…

JAVA: