Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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10.23 LAB: Instrument information (derived classes)
Given the base class Instrument, define a derived class StringInstrument for string instruments.
Use Python for this.
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- Question 5 (6 marks) Given the following interface class interface Bigoperation { public Biglnteger operation (Biglnteger x, Biglnteger y); Write Lambda expressions to implement BigOperation to simulate three arithmetic operations *, / and % on Biglnteger. You can call them op1, op2 and op3 respectively. Note that the three operations in Biglnteger are called multiply, divide and remainder respectively. Using these three operations, we wish to multiply all the digits in a Biglnteger. For example, if the Biginteger is 234, the product is 2* 3*4 = 24. The method has the following method heading: static BigInteger product (Biglnteger n, BigOperation op1, BigOperation op2, BigOperation op3) Compare the implementation of this method using two approaches: Iterative and Recursive. Put the Lambda expressions in a main method. Construct a few Biglnteger objects, invoke the methods to test our design. The following shows some of the sample outputs:arrow_forward3- Write a program to implement a class "student" with the following members. Name of the student. Marks of the student obtained in three subjects. Function to assign initial values. Function to compute total average. Function to display the student's name and the total marks. Write an appropriate main() function to demonstrate the functioning of the above.arrow_forwardR7.30Assuming the following declarations, find the mistakes in the statements below. struct A { int m1[2]; int m2; } struct B { A a1; A* a2; int m3; } A a; B b[2]; a.b[0].a2 = a; b.b[1].m2 = 42; c.b[2].a2 = new A; d.b[0].a1.m1 = 42; e.b[1].a2->m2 = 42;arrow_forward
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