class Person{}
class Student extends Person{
public int id;
public int score;
public String name;
public int getScore()
{
return score;
}
class Student extends Person{
public int id;
public int score;
public String name;
public int getScore()
{
return score;
}
举一反三
- 设有下面两个类的定义： class Person {} class Student extends Person { long id; // 身份证号 int score; // 入学总分 String name; // 姓名 int getScore(){return score;} } 问：类Person和类Student的关系是
- 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)； }}
- class Person {private int a;public int change(int m){ return m; }}public class Teacher extends Person {public int b;public static void main(String arg[]){Person p = new Person();Teacher t = new Teacher();int i;// point x}}在 // point x安排哪个语句合法?
- 中国大学MOOC: public 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, String d, int a ){ //调用2个参数的构造函数 department=d; }}
- 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 ; } }