MINDTAPV2.0 JAVA PROGRAMMING 2021, 1TERM
MINDTAPV2.0 JAVA PROGRAMMING 2021, 1TERM
9th Edition
ISBN: 9780357505526
Author: FARRELL
Publisher: CENGAGE L
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Chapter 1, Problem 1PE

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Class identifiers:

  • Naming convention for class name is “Capitalize the first letter of each word”. For example: “ComputePerimeter”, “AngleCalc”, and “TestScore”.
Class Identifiersabc
LegalConventionalLegalUnconventionalIllegal
myClass  YesYes, the starting letter of class identifier should be upper case in java 
void    Yes, the class identifier is illegal, since “void” is keyword
Golden Retriever    Yes, it is illegal to have space in class identifiers
invoice#    Yes, A java class identifier can contain only letters, digits, underscores, or dollar sign...

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PS: Please answer number 1 and 2 as they are related everything altogether. Make sure the code delivers expected successful output. 1. Create a Java class named Package that contains the following:a. Package should have three private instance variables of type double named length, width, andheight.b. Package should have one private instance variable of the type Scanner named input, initializedto System.in.c. No-args (explicit default) public constructor, which initializes all three double instance variables to1.0.d. Initial (parameterized) public constructor, which defines three parameters of type double,named length, width, and height, which are used to initialize the instance variables of same name.e. Public copy constructor, with a parameter of type Package, used to duplicate anexisting Package object.f. Three public void methods named inputLength, inputWidth, and inputHeight. Each methodwill prompt the user for the appropriate property, and input a double value usingthe Scanner…
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