(6-9)定义了如下Person类,下面程序段能够正确初始化Person数组。
class Person{
private String name;
public Person(String name){
this.name=name;
}
}
class Person{
private String name;
public Person(String name){
this.name=name;
}
}
举一反三
- 【多选题】定义了如下Person类,下面()程序段能够正确初始化Person数组。 class Person{ private String name; public Person(String name){ this.name=name; } } A. Person [ ] list=new Person[ ]{new Person("孙悟空"),new Person("猪八戒")}; B. Person list[ ]=new Person[ ]{new Person("孙悟空"),new Person("猪八戒")}; C. Person[ ] list={new Person("孙悟空"),new Person("猪八戒")}; D. Person list=new Person[ ]{new Person("孙悟空"),new Person("猪八戒")};
- 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); }}
- 阅读下面代码: Person 类: public class Person { private String name; public String getName() { return name; } public void setName(String name) { this.name = name; } } Servlet1: request.getSession().setAttribute("name","zhangsan"); Person p = new Person(); p.setName("lisi"); request.getSession().setAttribute("person",p); Servlet2: String name1 = (String)request.getSession().getAttribute("name"); Person p = (Person)request.getSession().getAttribute("person"); response.getWriter().write(name1); if(p!=null)response.getWriter().write(p.getName()); 浏览器先访问Servlet1,再去访问Servlet2,输出的结果是:()
- (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; } }
- 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 ; } }