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Write a Java program that can serve as a simple calculator. This calculator keeps track of a single number (of type double) that is called result and that starts out as 0.0. Each cycle allows the user to repeatedly add, subtract, multiply, or divide by a second number. The result of one of these operations becomes the new value of result. The calculation ends when the user enters the letter "R" or "r" for 'result'. The user is allowed to do another calculation from the beginning as often as desired.The input format is shown in the following sample dialogue. If the user enters any operator symbol other than "+,-,*, or /", then an UnknownOperatorException is thrown and the user is asked to reenter that line of input. Define the class UnknownOperatorException appropriately.
Calculator is onresult = 0.0+5result + 5.0 = 5.0new result = 5.0*2.2result * 2.2 = 11.0updated result = 11.0%10% is an unknown operation.Reenter, your last line:*0.1result * 0.1 = 1.1updated result = 1.1rFinal result = 1.1Do you want calculate again? (y/n)yesresult = 0.0+10result + 10.0 = 10.0new result = 10.0/2result / 2.0 = 5.0updated result = 5.0RFinal result = 5.0Do you want calculate again? (y/n)NEnd of Program
Create a second package called ‘task01'. Within this package provide classes which perform the following tasks.
Java functional testing
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XYZ Supermarket wants a program that will prompt for the product code, pricing code, price and quantity of an article. Your program is then to calculate a discount rate according to the pricing code.
The source code is patterned after a similar example that was taken from Joyce Farrell's textbook, Java Programming.
Enter 3 integers and determine if these 3 values make up the sides of a triangle. If any side is
Java Coding
Modify the program such that if there are no command line arguments, when you type:
Create a JAVA GUI (With Frame), which allows to input a year and when hit the check button, will show the picture of Chinese zodiac animal! I am trying to make a calculator: i have the method for or the calculation method to show how to calculate:
Write a class Lines containing a static method dashedLine to draw dashed lines, so it can write:
Design and implement a Java program that will gather a group of floating point numbers and determine the sum and average of the data entered. The program should use separate methods for inputting the data, calculating the sum, calculating the aver..
Write a program that will process the data file to read the file and calculate the number of assistants and the average salary and the number of associates and the average salary
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