Java environment

• Classpath

  • Environment variable used to find classes
  • Make sure you have the JDK classes in the classpath
    • installation takes care of this usually
  • Make sure you have current directory, ".", as well

• Try Hello.java to test environment

• Executing a class

  • must contain a starting point
  • a method called main
  • has the modifiers public, static
  • takes a single parameter - an array of strings

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