Programming & Computer Science Answers

Write a function that will merge the contents of two sorted (ascending order)
arrays of type double values, storing the result in an array output parameter
(still in ascending order). The function should not assume that both its input
parameter arrays are the same length but can assume that one array does not
contain two copies of the same value. The result array should also contain no
duplicate values.
Hint: When one of the input arrays has been exhausted, do not forget to copy
the remaining data in the other array into the result array.
Test your function with cases in which (1) the first array is exhausted first, (2) the second array is exhausted first, and (3) the two arrays are exhausted at the same time (i.e., they end with the same value). Remember that the arrays input to this function
must already be sorted .

The moon sighting is based on the age of the moon. Age is determined with day and hours. If the age of moon is less than 24hour its hard to sight. The user can input the age in hours or both using constructors. If date is given in both days and hours through 2Arg constructor then it must be converted into hours, within the constructor using overloaded decrement (--)operator. Write a C++ class Age using OOP concepts to determine that either the moon can be sighted or not with respect to age of the moon in hours. Main function is given below for your help (changing not allowed below)
int main()
{
Age A1(9);
if(A1<24)
cout<< "\nMoon cannot Sighted";
else
cout<<"\n Moon Sighted";
//Object via 2-Arg Constructor, first arg is day and second arg is hours
Age A3(1,9); //Overloaded Decrement operator is called in this constructor
//which converts days and hours in hours
if(A3<24)
cout<< "\nMoon cannot Sighted";
else
cout<<"\n Moon Sighted";
return 0;
}

Discuss whether this statement is true or false: “Every software system has software architecture”.

Write a function that takes two Distance values as arguments and returns the larger one. Include a main() program that accepts two Distance values from the user, compares them, and displays the larger.

Design a calculator using the concept of functions. Take user defined values for each operation.

Write a function called circarea() that finds the area of a circle. It should take an argument of type float and return an argument of the same type. Write a main() function that gets a radius value from the user, calls circarea(), and displays the result.

Consider the following interface definition that is written without methods. Instead, it has comments followed by blank areas denoted by …………… to describe what each method has to
do. Add method definitions in those blank areas as indicated in the comment. Check exceptions
also.
public interface Quiz {
findQuiz (id) // Return the specific quiz
startQuiz(id) checkSoultions( ) //shows solutions of the quiz questions
getResult( ) //information about correct, incorrect answers, show score }

What are wrapper classes and why are they useful for ArrayLists? In your answer, include examples of autoboxing and unboxing.

Describe how you would develop object-oriented features of Java for the Quiz program developed in the Programming Assignments. In particular, describe how the program could use each of the following: class variables, instance variables, inheritance, polymorphism, abstract classes, "this", "super", interfaces, and event listeners.

What are wrapper classes and why are they useful for ArrayLists? In your answer, include examples of autoboxing and unboxing.