Basic HTML version of Foils prepared
Sept 21 1998
Foil 35 Interface Example -- Implementing Storable
From
Java Tutorial 98- 2: Java Language and Object Oriented Techniques NAVO Tutorial --
Sept 23 1998
.
by
Geoffrey C. Fox, Nancy McCracken
A class may implement an interface, in which case it provides the body for the methods specified in the interface.
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 {
. . .
}
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