比如
interface InA extends Cloneable {
public void method1();
}
public Class C1 implements InA {
}
public Class C2 {
public static void main(String[] args) {
InA a = new C1();
InB = a.clone(); //出错，不能这样写，需要怎么实现这个功能？
//提示clone（）方法不存在
}
}
------解决方案--------------------
clone方法在Object类中，不过是protected限定
- Java code
interface InA extends Cloneable { public void method1(); public Object clone() throws CloneNotSupportedException;}class C1 implements InA { public void method1(){} public Object clone() throws CloneNotSupportedException {return super.clone();}}public class C2 { public static void main(String[] args) throws Exception { InA a = new C1(); Object b = a.clone(); //出错，不能这样写，需要怎么实现这个功能？ System.out.println(a); System.out.println(b); }}