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计算机科学代写| CE152 Java Programming assignment

以下是CE152的一份Java Programming assignment的题目的简单解析

Java Programming Exercise

CE152

Assignment 2021

WARNING AND ADVICE ABOUT POSSIBLE ACADEMIC OFFENCES

Your solutions should be your own unaided work. You can make use of any of the programs from

the CE152 lecture notes, support classes and the lab solutions. You may use any features from

the Java JDK API including those not covered in CE152.

You must NOT use any third-party classes (e.g. classes that are not provided as part of the Java

JDK download). If you use any other sources, you must clearly indicate this as comments in the

program, and the extent of the reference must be clearly indicated. For more information, please

see the University pages on plagiarism and the Academic Offences Procedures.

DO NOT COPY PROGRAM CODE FOR THIS ASSIGNMENT FROM ANOTHER STUDENT OR

FROM THE INTERNET OR FROM ANY OTHER SOURCES. DO NOT LET OTHER STUDENTS

COPY YOUR WORK.

Deadline: see Faser.

Submission

The assignment must be submitted via Faser. Your submission must comprise a single zip fifile

created by exporting your project as an archive. No other fifiles should be included in the zip

fifile.

You may receive a mark of zero if you fail to submit your solutions by the deadline.

Please double check that you are submitting the correct fifiles.

Extenuating Circumstances

The standard extenuating circumstances procedures will apply for those who – for circumstances

beyond their control – are prevented from submitting work before the deadline or from attending

the lab demonstration. Please see the Undergraduate Students’ Handbook for the University

policies regarding these matters.

Introduction

The assignment contains Exercise 1 [15%], Exercise 2 [20%], Exercise 3 [40%] and Exercise 4

[20%] each focusing on a set of particular topics covered in the module. An additional [5%] will

be awarded for commenting your code, adhering to the good coding practises mentioned in the

lecture and submitting your project as an archive exported from your IDE.

Overall, this assignment will constitute 50% of your total grade.

Please add variables and methods only with the specifified access modififiers. You may add additional

variables and methods you fifind convenient.

CE152 Java Programming assignment第一题
问题 1.

Exercise 1 [15%]

This exercise involves creating a class with variables, a constructor and methods. Additionally,

you will use arrays and control statements.

Exercise 1A [2%]

Create a class called Rocket. This class should have a private variable of type int array called

payload.

Additionally create a class called MainRocket that contains a main method.

Exercise 1B [2%]

Add a constructor that receives an int array as parameter and assigns it to payload.

Exercise 1C [5%]

Add the following methods to Rocket:

A public method called getLaunchWeight, without parameters that returns an int that

contains the sum of all items in payload.

A public method called getAverageWeight, without parameters that returns a double that

contains the mean weight of all items in payload.

A public method called getMaxWeight, without parameters that returns an int containing

the maximum weight of an item in payload.

A public method called getMinWeight, without parameters that returns an int containing

the minimum weight of an item payload.

Exercise 1D [3%]

Add a public method called printCountdown, that receives an int as parameter and returns

void. That method should print a countdown from the int provided as parameter.

For example if 10 is provided the method should print:

10

9

8

7

6

5

4

3

2

1

Lift off!

If a parameter smaller than 1 is provided the method should print:

Invalid time.

Exercise 1E [3%]

In the main method of MainRocket generate a random payload with ten elements and weights

between 0 and 100 and store them in an int array.

Print the content of the array and instantiate a Rocket object with this array as parameter.

Print the maximum, mean, minimum and sum of the payload using the corresponding methods in

Rocket.

For example:

2Payload: [76, 60, 76, 36, 49, 62, 26, 13, 97, 17]

Max: 97

Mean: 51.2

Min: 13

Sum: 512

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