# java Very basic calculator using methods

July 20, 2020 February 4th, 2023 Software development

In Windows 7, separate programmer, statistics, unit conversion, date calculation, and worksheets modes were added. Furthermore, Calculator’s interface was revamped for the first time since its introduction. The base conversion functions were moved to the programmer mode and statistics functions were moved to the statistics mode. Switching between modes does not preserve the current number, clearing it to 0. Given the availability of a file named numbers write the statements necessary to read an integer from standard input and then read in that many values from numbers and display their total. Given an array arr of type int , along with two int variables i and j, write some code that swaps the values of arr and arr.

Write the definition of a function printArray, which has two parameters. The first parameter is an array of integers and the second is an int, the number of elements in the array. The function brings out each element of the array, on a line by itself, in the order the elements appear in the array, and does not print anything else. Given a two-dimensional array of integers https://forexaggregator.com/ named q, with 2 rows and 4 columns, write some code that puts a zero in every element of q. Write the definition of a function named maxmin that is passed four int arguments. The function returns nothing but stores the larger of the first two arguments in the third argument that it receives and the smaller of the first two arguments in its fourth argument.

Define a new type called ADDRESS that is a structure consisting of seven fields, suiteNumber, streetNumber, street, city, province, postalCode, country, all of type string. Assume that name is a variable of type string that has been assigned a value. Write an expression whose value is the last character of the value of name.

## Windows 7

The ‘Conversion’ mode supports unit conversion and currency conversion. Currency exchange rates can be updated using the built-in update feature, which downloads exchange rates from the European Central Bank. On the right of the main Calculator, one can add a panel with date calculation, unit conversion and worksheets. Worksheets allow one to calculate a result of a chosen field based on the values of other fields.

• Assume that an array named a, containing exactly five integers has been declared and initialized.
• Given the declaration of a structure whose tag is DATE write the declaration of the following variables enrolled_on, paid_on, and completed_on, each of which is of type DATE..
• Given the variables hours, rate, and pay have already been declared and assigned values, write a fragment of code that assigns to pay the proper value, taking into account time-and-a-half.
• Always remember; making a non virtual method later on virtual is much easier than making a virtual method later on non virtual.
• Write a single statement that assigns a new value to the first element of the array.

Assume a class Window with accessor method getWidth that accepts no parameters and returns an integer. Assume further an array of 3 Window elements named winarr, has been declared and initialized. Write a sequence of statements that prints out the width of the widest window in the array. Assume that type Money, a structured type with two int fields, dollars and cents, has been declared.

## Python: Unexpected identifier when calling method of class

Define a new type called POINT that is a structure consisting of two fields, x and y, both of type double. There is no apparent reason why this method sould be virtual so don’t declare it as such. Always remember; making a non virtual method later on virtual is much easier than making a virtual method later on non virtual. Prompt for 2 operands and operator from the user, Call the appropriate method for operation and display the results.

Given an array a, declared to contain 34 elements, write an expression that refers to the last element of the array. Declare an array named scores of twenty-five elements of type int. I would change the class name to calculator as opposed to functions. @KonradRudolph If this were real-world I’d whole-heartedly agree, however it is pretty clear this is a learning exercise. In the real world there is almost never a case that you would want to write an Addition method versus just writing x+y in the code itself.

In OOP terminology, an object’s member variables are often called its_____, and its member functions are sometimes referred to as its ____________. Define a new type, ROSTER, that is a structure consisting of an int field, size, and another field, grades, that is an SREC array with 500 elements. Given a type Money that is a structured type with two int fields, dollars and cents declare an array monthlySales with 12 elements of type Money.

The function returns nothing but exchanges the values of the two variables. So, if j and k have the values 15 and 23, and the invocation swapints is made, then upon return, the values of j and k will be 23 and 25 respectively. The first parameter is an array of element type int and the second is an int, the number of elements in the array. The function prints the contents of the array parameter; it does not return a value.

## Windows 10

So if the equivalent of \$1.85 and \$2.19 is passed the function would return the equivalent of \$4.04. Objects of the Window class require a width and a height be specified upon definition. Declare two integers corresponding to a width and a length and read values into them from standard input . Use these value to define an object of type Window named newWindow.

To step through a one-dimensional array, accessing the elements one by one, it would be most appropriate to use ______ loop. A C++ member function that sets or changes the value stored in a member variable is called. A __________ member function may be called by a statement in a function that is outside of the class. When three different objects of a class are created, they are said to be separate _____ of the class.

Given that an array of int named a has been declared with 12 elements and that the integer variable k holds a value between 0 and 6. Write a function addOne that adds 1 to its integer reference parameter. Given that an array of int named a has been declared with 12 elements and that the integer variable k holds a value between 0 and 6.Assign 9 to the element just after a.

## To create a class called Calculator which contains methods for arithmetic operations

Now we can simply call this method whenever we need to get numbers from the user. Write a declaration for a variablesalesAnnualof type Money and initialize it to represent \$1,325,023.47. The linear search is adequate for searching through ________ arrays, but not through ________ ones. A binary search begins by examining the ____ element of an array. A constructor that does not require that any argument be passed to it is called a ___________ constructor.

Inventory is an array of ints that has been already declared and filled with values. N is an int variable that holds the number of elements in the array. Write a statement that prints the contents of the array inventory by calling the function printArray. Define an object named window, of type Window, whose width and length are Advantages of Python that made it so Popular and its Major Applications obtained from the variables, w and l. Assume you have a variable sales of type Money where the latter is a structured type with two int fields, dollars and cents. Write a statement that reads two integers from standard input, a dollar amount followed by a cents amount, and store these values in the appropriate fields in sales.

Given that an array of int named a has been declared, assign 3 to its first element. It can be initialized with a constructor & it can be passed to a function or returned from a function. Given a two-dimensional array x of doubles, write an expression whose value is twice the value of the element in the 3rd row and the 2nd column. Given a two-dimensional array x of element type int, write an expression whose value is the sum of the element in the 3rd row/4th column and the element in the 5th row/1st column. Declare a two-dimensional array of integers named arr with 3 rows and 10 columns. Assume you have a variable price1 of type Money where the latter is a structured type with two int fields, dollars and cents.

Assign values to the fields of price1 so that it represents \$29.95. Objects of class Name are defined by supplying last name and a first name — in that order. Define an object of type Name named name and corresponding to a last name of “Black” and a first name of “Susan”. Double subtraction(const double & x, const double & y) //No need to capitalize methods of a class. Return x + y; // No need to creat new variables, just return a result.