• 2022-06-07 问题

    对于Person类,如果给成员变量name赋值 A: Person.name="老王"; B: p.name="老王"; C: p.setName("老王"); D: p.getName("老王");

    对于Person类,如果给成员变量name赋值 A: Person.name="老王"; B: p.name="老王"; C: p.setName("老王"); D: p.getName("老王");

  • 2022-06-08 问题

    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

    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

  • 2022-06-15 问题

    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); }}

  • 2021-04-14 问题

    (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; } }

    (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; } }

  • 2022-06-06 问题

    定义一个Person类,_________Person:name="李明"

    定义一个Person类,_________Person:name="李明"

  • 2021-04-14 问题

    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:()

    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:()

  • 2021-04-14 问题

    【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")};

    【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")};

  • 2022-06-15 问题

    下列JavaScript定义对象的语句中,()不正确。 A: var person = {}; B: var person = new Object(); C: person =name; D: function person(name,sex){} var personObj = new person();

    下列JavaScript定义对象的语句中,()不正确。 A: var person = {}; B: var person = new Object(); C: person =name; D: function person(name,sex){} var personObj = new person();

  • 2021-04-14 问题

    (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; } }

    (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; } }

  • 2021-04-14 问题

    给出程序的运行结果() classPerson{ Stringname; intage; Person(){ System.out.println('Person()'); } voidPerson(){ System.out.println('method()'); } publicvoidtell(){ System.out.println('姓名:'+name+',年龄:'+age); } } publicclassClassTest02{ publicstaticvoidmain(String[]args){ Personperson=newPerson(); person.name='张三'; person.age=30; person.tell(); } }

    给出程序的运行结果() classPerson{ Stringname; intage; Person(){ System.out.println('Person()'); } voidPerson(){ System.out.println('method()'); } publicvoidtell(){ System.out.println('姓名:'+name+',年龄:'+age); } } publicclassClassTest02{ publicstaticvoidmain(String[]args){ Personperson=newPerson(); person.name='张三'; person.age=30; person.tell(); } }

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