Write a Java program to solve quadratic equations.
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Write a Java program to solve quadratic equations.
Design a class QuadraticRoots which has following members:
Data:
1.a
2.b
3.c
Methods:
Setter functions (total 3)
Getter functions (total 3)
computeRoots
> if the discriminant greater than zero --- find two distinct real roots
> if the discriminant equal to zero find the real roots
> if the discriminant is less than zero find the two distinct complex
(imaginary) roots
> should also handle the iota (i)
displayRoots
get values of a, b, c from the user and display the output for each case.
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- public static void main(String [] args) { // Step 2: Construct a Day object representing today // and assign it to a variable called aDay // Step 3: Construct a Day object representing the day for our Exam1 on March 1, 2022, and assign it to a variable called examOne // // // Step 4: Declare three integer variables called year, month and day with initial values of 2022, 4, 12. // // 4 // Step 5: Construct a Day object using the three variables and assign it to a variable called examTwo 6. :7 28 29 // // Step 6: Display the three days on separate lines without any messages 30 31 // 32 33 // Step 7: Display the number of days as a positive integer between the two exams with a message 34 35 // 36 // "Number of days between the two exams: " 37 38 39 // Step 8: Update aDay to the day two days later 40 41 // Step 9: Print the year, month and day of aDay, one value per line without any messages 42 43 // 44 45 } 46 47class Test { char paper[20]; int marks; public: Test () // Function 1 { strcpy (paper, "Computer"); marks = 0; } Test (char p[]) // Function 2 { strcpy(paper, p); marks = 0; } Test (int m) // Function 3 { strcpy(paper,"Computer"); marks = m; } Test (char p[], int m) // Function 4 { strcpy (paper, p); marks = m; } }; i. Write statements in C++ that would execute Function 1, Function 2, Function 3 and Function 4 of class Test. ii. Which feature of Object Oriented Programming is demonstrated using Function 1, Function 2, Function 3 and Function 4 together in the above class Test?Consider the following code segment and answer questions 14 and 15. class Point { public: Point (double x = -99, double y = -99) { this -> xM = x; this -> yM = y;} double getx () {return xM; } double gety () {return yM; } void setx (double x) {this -> xM = x; } void sety (double y) {this -> yM = y; } private: double xM, yM; }; 14. What is the output of the following code snippet: Point pl (100); cout << pl.getx() << " " << pl.gety(); a. The output of the program is: -99 -99 b. The output of the program is: 100 100 c. The output of the program is: -99 100 d. The output of the program is: 100 -99 e. None of the above. It doesn't compile because constructor of Point needs two arguments. 15. How many times does the constructor of class Point get called by the following code snippet: Point a (100, 200); Point b[6]; Point *c = new Point; Point *d = new Point (300, 400); a. Four times b. Three times c. Nine times d. Two times e. None of the above
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