package day16.fanxing;
public interface Fu2<String> {
}
package day16.fanxing;
public class Zi2<String> implements Fu2<String> {
public void show(String str){
System.out.println(str);
}
}
package day16.fanxing;
public class FanXing2 {
public static void main(String[] args) {
Zi2 zi2 = new Zi2();
zi2.show("aaa");
zi2.show(111);
zi2.show(new Demo());
}
}
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