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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
Code analysis and programming.
What is the output of the following Java program? Explain in terms of how parameters are passed in Java.import java.awt.*;class PointParameters
Write a JAVA program that would get the locations of all the POIs from the file and plot them on a map.
Specify, design, and implement a class that can be used in a program that simulates a combination lock. The lock has a circular knob with the numbers 0 through 39 marked on the edge, and it has a three-number combination, which we will call x,y,z.
Implement all the four Java classes described with the correct inheritance of abstract classes. Calculate the premium and multiply the value of the object being insured by the corresponding RATE. See the RATE tables above.
Write a program Deal that takes an integer, save it in "kHands" from the keyboard and prints kHands poker hands (five cards each hand) from a shuffled deck, separated by blank lines Screenshot of the program and hands.
Write a program that reverses a string with the In themain function, ask the user to enter a string and The entered string can be handled as C-string (or converted to C-string).
problem 1write a java class called problem1. implement the following method in your classpublic static int
1. Create a Java class named HeadPhones to represent a headphone set. The class contains:
The listing of Tree.java is supplied below as a starting point for this lab. A picture of Tree.java output is also shown. Either cut/paste the code or type it in. Run the program to verify that it works. Study the listing until you understand comp..
Program is adequately documented. It's comments identifies its name, purpose, author and date.Throughout the code, comments and/or relevant component names should attempt to make theprogram understandable.
design and implement a set of classes and interfaces and use them to evaluate the rtas resource requirements.nbspyour
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