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skRyo/gist:3175775

Created July 25, 2012 11:56
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教えてエライ人
Raw
gistfile1.java
interface Debugprintable {
void debugprint();
}
public class mynumber implements Debugprintable{
private int a;
public mynumber(int a) {
this.a = a;
}
public void debugprint() {
System.out.println(a);
}
public static void main(String[] args) {
mynumber a = new mynumber(100);
a.debugprint();
Debugprintable b = new mynumber(200);
b.debugprint();
// これの違い何ですか？
// インターフェース型？
// どっちが正解なの？
}
}
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