Description: Expo begins, in order to allow tourists to better enjoy the journey Expo, the organizing committee decided to make a self-service system, the World Expo in the system to manage some common resources, such as: volunteers, radio personnel, police, medical personnel. Visitors enter the system, the system managed to list the resources, and visitors to choose their resources, the system lists some of the resource information and services, visitors can choose to understand the information or service assistance. Of course, some resource information is not open to visitors, and this time the system needs to inform the tourists visiting the information can not be accessed. Exception occurs in a program needs to be caught and properly handled.
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File list (Check if you may need any files):
HW_8\.classpath
....\.project
....\.settings\org.eclipse.jdt.core.prefs
....\bin\Armed_police.class
....\...\Doctor.class
....\...\ExpoDemo$1.class
....\...\ExpoDemo$2.class
....\...\ExpoDemo$3.class
....\...\ExpoDemo$4.class
....\...\ExpoDemo.class
....\...\Reporter.class
....\...\Volunteer.class
....\src\Armed_police.java
....\...\Doctor.java
....\...\ExpoDemo.java
....\...\Reporter.java
....\...\Volunteer.java
....\.settings
....\bin
....\src
HW_8
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