class ObjA implements Cloneable {
    int x;

    public ObjA(int x) {
        this.x = x;
    }

    public Object clone() {
        Object o = null;
        try {
            o = super.clone();
        }
        catch(CloneNotSupportedException e) {
            e.printStackTrace();
        }
        return o;
    }

    public String toString() {
        return "x = " + String.valueOf(x);
    }
}

public class test_clone1 {
    public static Object doclone(Object obj) {
        return obj.clone();
    }

    public static void main(String argv[]) {
        ObjA a = new ObjA(12);
        ObjA b = (ObjA) doclone(a);
    }
}