📄 classsampletest.java
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package ch01.section07;
public class ClassSampleTest {
public static void main(String[] args) {
Instrument i1;
i1 = new Instrument();
Guitar g1;
g1 = new Guitar();
Drum d1;
d1 = new Drum();
System.out.println("i1的名称是:" + i1.Name);
System.out.println(g1.isElectrical ? "g1是电吉他" : "g1不是电吉他");
System.out.println("d1的名称是:" + d1.Name);
}
}
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