Predicate和Consumer接口的使用

 public static MyTest2 getV(MyTest2 a, Predicate<MyTest2> pre,Consumer<MyTest2> con){
        if(pre.test(a)){
            con.accept(a);
        }
        return a;
    }


    public static void main(String[] args) {
        MyTest2 a = new MyTest2(12,"ce");
        System.out.println(getV(a,x-> x.getAge() > 12,x->x.setAge(13)).toString());
        System.out.println(getV(a,x-> x.getAge() > 11,x->x.setAge(13)).toString());
    }