test57.java

来自「SCJP认证考试资料」· Java 代码 · 共 23 行

class Circle {
    int radius;
    Circle(int radius) {
	this.radius = radius;
    }
    protected Object clone() {
	return new Circle(radius);
    }
    int getRadius() {
	return radius;
    }
}
class Test57 {
    public static void main(String[] args) {
	Circle circle1 = new Circle(5);
	Circle circle2 = (Circle)circle1.clone();
	System.out.print(circle2.getRadius());
	Ob ob = new Circle(6);
	Object ob1 = ob.clone();
	System.out.print(((Circle)ob1).getRadius());
    }
}