Two programs for OOP

1. Write a program that allows the user to enter any 3 by 3 matrix and then computes the average of the left diagonal. (10 marks) Design a class named QuadraticEquation for a quadratic equation ax2+ bx+ c 2. 0, The class contains: Private data fields a, b, and c that represent three coefficients. A constructor for the arguments for a, b, and c. Three get methods for a, b, and c. A method named getDiscriminant(0 that returns the discriminant, which is b2-4ac. The methods named getRoot10 and getRoot20 for returning two roots of the equation . . 2a 2a These methods are useful only if the discriminant is nonnegative. Let these methods return 0 if the discriminant is negative. Write a test program that prompts the user to enter values for a, b, and c and displays the result based on the discriminant. If the discriminant is positive, display the two roots. If the discriminant is 0, display the one root. Otherwise, display "The equation has no roots." (20 marks) Enter a, b, c: 1.0 3 1 The equation has two roots -0.381966 and -2.61803 Enter a, b, c: 1 2.0 1 er The equation has one root -1 Enter a, b, c: 1 2 3 The equation has no real roots