Java Second Test report

Beijing Institute of Electronic Technology (BESTI)

Real Inspection report

Course: Java Programming Class: 1353 Name: Guo Haoxue No.: 20135327

Score: Instructor: Lou Jia Peng Experimental Date:

Experiment level: Preview degree: Experiment time:

Instrument Group: Compulsory/Elective: Elective experiment number: 2

Experiment Name: Java Object-oriented programming

Experimental purposes and requirements:

1. preliminary master unit testing and tdd                                

2. inherit polymorphic                                                                            

3. preliminary master Span style= "text-decoration:underline;" >UML modeling                                                              

4. familiar with S.O.L.I.D principle

5. Understanding Design Patterns

Experimental instrument:

Name	Model	Number
Pc		1

First, the experimental process

Use Umbrello to complete encapsulation, inheritance, polymorphism ...

Implementing the complex class complex using TDD method design off

Second, the operation

Iii. problems encountered/how to resolve

1. Laboratory building tools have problems, has not been!!!

Solution: Use the system comes with the tool

2. There is a division of the plural, mainly the divisor cannot be zero

WORKAROUND: If else consider using exceptions

Four, the experiment code:

1. Pseudo code:

(1). Establish Complex class

(2). Design Subtraction Operations

Addition: (A+BI) + (C+di) = (a+c) + (b+d) I

Subtraction: (A+BI)-(C+di) = (a-c) + (b-d) I

Multiplication: (A+BI) * (C+di) = (AC-BD) + (AD+BC) I

Division: (A+BI)/(C+di) = ((AC+BD) + (AD-BC) i)/(c²+d²)

(3) Output test

Five, PSP time statistics

Statistics are missing, totaling three hours.

Steps	Take	Percentage
Demand analysis	10 minutes
Design	20 minutes
Code implementation	115 minutes
Test	5 minutes
Analysis Summary	30 minutes

Vi. Analysis and summary

Feel the first problem on the Internet, other feelings are very good!! Especially when designing the code!!

Java Second Test report