设有一结构体类型变量定义如下： struct worker { char name[20]; char sex; int age; } person; 若对结构体变量person的年龄进行赋值，下面正确的赋值语句是________。 A: age=40; B: worker.age=40 C: person.age=40 D: worker.person.age=40

Choose the appropriate description for a worker ( ). A: A worker is a person who is doing mental job. B: A worker is a person who is prone to devote more time to working. C: A worker is a person who feels happier and more satisfied with his/her life. D: A worker is a person who spends his/her leisure time on lifelong learning.

A person is a worker if he __________.

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

在C#中,下列结构或者类定义正确的是（选一项） A: public struct Person{ string name； int age； public void ShowName(){ Console.WriteLine(name)； }} B: public struct Person{ string name； int age； public Person(){ Conssole.WriteLine(name)； }} C: public class Person{ string name； int age； public Person(){ Conssole.WriteLine(name)； }} D: public class Person{ string name； int age； public Person(string name){ Conssole.WriteLine(name)； }}

在JAVA中，类Worker是类Person的子类，Worker的构造方法中有一句“super()”，该语句

class Person { int age; public Person(int age) { ______________//让局部变量的age给成员变量的age赋值 } public int getAge() { return this.age; } } 在横线处填入正确的代码,可以让局部变量的age给成员变量的age赋值

（6-2）定义如下Person类，(1)处合理的代码是。 class Person { String name, department; int age; public Person(String n) { name = n; } public Person(String n, int a) { name = n; age = a; } public Person(String n, int a, String d) { ① department = d; } }

The word "sluggard" means（） A: a slow-moving person B: a human being C: a hard worker D: an enemy

分析下面的程序，输出的结果是？ public class Test { public static void main(String[] args) { final Person p = new Person("张三", 23); p.setName("李四"); p.setAge(24); System.out.println(p); } } class Person { private String name; private int age; public Person() { super(); } public Person(String name, int age) { super(); this.name = name; this.age = age; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } @Override public String toString() { return "我的姓名是:" + name + ",我的年龄是:" + age ; } }