How to make the program (static nested Class) Create a class Calculator, which represents a regular scientific
Fantastic news! We've Found the answer you've been seeking!
Question:
How to make the program (static nested Class)
Transcribed Image Text:
Create a class Calculator, which represents a regular scientific calculator. It should have an instance variable history, which is a list of objects of type Calculation, representing the history of calculations done. It should also have a method clear()), which empties the history. It should also have a calculate instance method which expects one argument of type Calculation, and adds the given argument to its history. Finally, Calculator should have a toString(), which prints out the history of calculations in a nice way. Create a static nested class Calculation, which for this example is nothing more than a wrapper for a String. So, it should have an instance variable text of type String that represents what the line of text for this Calculation is (for example, "5 + 10"). Then, in your main method, create multiple calculators, multiple calculations, and practice adding them to calculators, printing the calculators, and clearing. Create a class Calculator, which represents a regular scientific calculator. It should have an instance variable history, which is a list of objects of type Calculation, representing the history of calculations done. It should also have a method clear()), which empties the history. It should also have a calculate instance method which expects one argument of type Calculation, and adds the given argument to its history. Finally, Calculator should have a toString(), which prints out the history of calculations in a nice way. Create a static nested class Calculation, which for this example is nothing more than a wrapper for a String. So, it should have an instance variable text of type String that represents what the line of text for this Calculation is (for example, "5 + 10"). Then, in your main method, create multiple calculators, multiple calculations, and practice adding them to calculators, printing the calculators, and clearing.
Expert Answer:
Answer rating: 100% (QA)
Below is an example implementation in Java with a static nested class Calculation and the Calculator ... View the full answer
Related Book For
Java An Introduction To Problem Solving And Programming
ISBN: 9780134462035
8th Edition
Authors: Walter Savitch
Posted Date:
Students also viewed these programming questions
-
Planning is one of the most important management functions in any business. A front office managers first step in planning should involve determine the departments goals. Planning also includes...
-
Let A, B be sets. Define: (a) the Cartesian product (A B) (b) the set of relations R between A and B (c) the identity relation A on the set A [3 marks] Suppose S, T are relations between A and B, and...
-
In the real number system the equation a2 = 1 has exactly two solutions. Find at least eight different 3 3 matrices that satisfy the equation A2 = I3.
-
This exercise builds from a simple situation to a slightly more complex situation. Vodafone, the British wireless phone service provider, collects cash in advance from customers. All amounts are in...
-
If Charles retired two years early the company would have to pay an extra20,000 lump sum into the pension scheme The building housing the IT department was on a three-year lease and the company was...
-
In the test for _________________ the null hypothesis is that the distribution of the column variable is the same in each row. In Exercises 35, fill in each blank with the appropriate word or phrase.
-
Doubletree Companys financial statements show the following. The company recently discovered that in making physical counts of inventory, it had made the following errors: Inventory on December 31,...
-
In 2009, US food company Kraft Foods launched a hostile bid for Cadbury, the UK-listed chocolate maker. As became clear almost exactly two years later in August 2011, Cadbury was the final...
-
Define IT service management (ITSM) and explain how you will use it to improve Retention rates of personnel. Explain how ITSM can improve customer satisfaction. List at least three benefits of...
-
LOOP IN PYTHON TASK: Harry Potter's Lines Make Python application that asks the user for the name of the professor the lines are for, the line to address and the number of times to print this line to...
-
you will be required to perform a number of tasks to assess your skills to prepare and produce a variety of basic cookery methods to prepare dishes. You will be required to prepare, plate and present...
-
Partnership entries and statement of partnership equity The capital accounts of Hassan Khan and Dmitri Palovich have balances of $75,000 and $54,000, respectively, on January 1, 2014, the beginning...
-
In 2022, Concord sold 6000 units at $500 each. Unit variable cost was $250 and fixed expenses totaled $650000. The same unit selling price is expected for 2023. Concord is tentatively planning to...
-
Assume that you are an observer standing at a point along a three-lane roadway (in one direction). All vehicles in lane 1 are travelling at 40 km/h, all vehicles in lane 2 are travelling at 60 km/h,...
-
b. A short-course meter pool is 25 meters long. A short-course yard pool is 25 yards long. Which one is longer and by how much (in feet)? Round to two decimal places.
-
Assessing simultaneous changes in CVP relationships Braun Corporation sells hammocks; variable costs are $75 each, and the hammocks are sold for $125 each. Braun incurs $240,000 of fixed operating...
-
Write a program that uses the class Calculator in Listing 9.12 to create a more powerful calculator. This calculator will allow you to save one result in memory and call the result back. The commands...
-
Consider the following fragment of code: if (x > 5) System.out.println("A"); else if (x < 10) System.out.println("B"); else System.out.println("C"); What is displayed if x is a. 4; b. 5; c. 6; d. 9;...
-
Draw a hierarchy for the components you might find in a graphical user interface. Note that some components can trigger actions. Some components may have graphics associated with them. Some...
-
Derive the equations of motion for the system in Figure 5.28 for generalized coordinates \(\theta_{1}\) and \(\theta_{2}\) using (a) Lagrange's equation and (b) Hamilton's principle. m. L. IG eeeee...
-
Consider again the system of Figure 2.57, reproduced in Figure 5.32. Derive the equation of motion using (a) Lagrange's equation, and (b) Hamilton's principle, for generalized coordinate \(x\). eeeee...
-
Consider again the system of Figure 2.53, reproduced in Figure 5.30. A mass \(m\) is suspended by a pulley system with a spring. Derive the equation of motion of the system using (a) Lagrange's...
Study smarter with the SolutionInn App