Description: An online stock software needs to provide the following functions: when the amplitude of a stock stock buyers purchase price changes is 5 , the system will automatically send notification (including the new price) to buy the stock investors. We use the observer pattern design of the system
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77\.classpath
..\.project
..\.settings\org.eclipse.jdt.core.prefs
..\bin\Client.class
..\...\ConcreteInvestor.class
..\...\Investor.class
..\...\Stock.class
..\src\Client.java
..\...\ConcreteInvestor.java
..\...\Investor.java
..\...\Stock.java
..\.settings
..\bin
..\src
77
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