Basic HTML version of Foils prepared
19 July 97
Foil 40 Java Language -- Interface Example -- Implementing Storable
From
Java Tutorial - Summer 1997 Part II: Java Language and Object-Oriented Concepts CEWES Tutorial --
July 22-25 1997
.
by
Nancy J. McCracken,Geoffrey C. Fox
1
A class may implement an interface, in which case it provides the body for the methods specified in the interface.
2
interface storable has store and retrieve methods
public class Picture implements Storable {
public void store(Stream s) {
// JPEG compress image before storing
}
public void retrieve(Stream s) {
// JPEG decompress image before retrieving
}
}
public class StudentRecord implements Storable {
. . .
}
in Table To:
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