Question: Q4. Write preconditions for the following methods. Do not implement the methods. a. public static double sqrt(double x) b. public static String romanNumeral(int n) c.

Q4. Write preconditions for the following methods. Do not implement the methods.

a. public static double sqrt(double x)

b. public static String romanNumeral(int n)

c. public static String weekday(int day)

Q4. Define class cohesion and class coupling

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