请阅读下面一段示例程序:classPerson:def__init__(self,age):self.__age=agedefset_age(self):self.__age=28person=Person(30)print(person.set_age())运行程序,程序最终执行的结果是()。
举一反三
- class Student:def __init__(self,name,age):self.name=nameself.age=agedef fun1(self):print("hello")( )def fun2(self):print("yes")child=Child("Tom",20)child.fun1()
- 下面程序运行的结果是( )。class Person:def __init__(self,n="张三"): self.name=nclass Student(Person):def __init__(self,s="male"):self.sex=sdef show(self):print(self.name,self.sex)s=Student("female")s.show() A: 张三 male B: 张三 female C: 出错 D: 张三
- 请看下面一段程序: def info(age=18,name): print("%s的年龄为%d"%(name,age)) info(28,'小明') 运行上述程序,最终输出的结果为
- class Person: def __init__(self,n="xxx"): self.name=n class Student(Person): def __init__(self,s="male"): self.sex=s def show(self): print(self.name,self.sex) s=Student("female") s.show() 结果:
- class Person { String name; int age; [br][/br] public Person(String name, int age) { super(); this.name = name; this.age = age; } @Override public boolean equals(Object obj) { Person person=null; if(obj instanceof Person) person=(Person)obj; if(name.equals(person.name)&&age==person.age) return true; return false; } } class Test{ public static void main(String[] args) { Person person1 = new Person("张三", 12); Person person2 = new Person("张三", 12); System.out.println(person1.equals(person2));//运行结果是? } } 程序运行结果是什么? A: true B: false