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Foil 9 Java Language -- Types of Classes - I

From Jan 27 Delivered Lecture for Course CPS616 -- Java Lecture 2 -- Basic Applets and Objects CPS616 spring 1997 -- Jan 27 1997. by Nancy McCracken * See also color IMAGE
Secs 96.4
Possible ClassModifiers are:
abstract -- Contains abstract methods without implementation -- typically such abstract classes have several subclasses that define implementation of methods
public -- May be used by code outside the class package and (unix) file must be called ClassName.java where ClassName is unique public class in file
private -- this class can only be used within current file -- i.e current class
friendly(i.e. empty ClassModifier) -- class can be used only within current package
protected -- Only accessible to subclasses
Northeast Parallel Architectures Center, Syracuse University, npac@npac.syr.edu

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