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// Greeter example from
// <http://www.dartlang.org/docs/getting-started/interface.html>
class Greeter implements Comparable {
String prefix = 'Hello,';
Greeter() {}
Greeter.withPrefix(this.prefix);
greet(String name) => print('$prefix $name');
int compareTo(Greeter other) => prefix.compareTo(other.prefix);
}
void main() {
Greeter greeter = new Greeter();
Greeter greeter2 = new Greeter.withPrefix('Hi,');
num result = greeter2.compareTo(greeter);
if (result == 0) {
greeter2.greet('you are the same.');
} else {
greeter2.greet('you are different.');
}
}
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