【单选题】定义一个学生类Student,则初始化一个学生对象的语句是(
A. Student s ； B. Student s = new Student(); C. Student s = new student(); D. Student s = s.student();
A. Student s ； B. Student s = new Student(); C. Student s = new student(); D. Student s = s.student();
举一反三
- 声明并创建一个学生类Student的对象s,下列语法格式正确的是: A: Student s = Student(); B: Student s; C: Student s = new Student(); D: Student s = new ();
- Student类是Person类的子类,分析下面语句,转型是否正确: Student s =(Student)new Person("张三", 23);
- This is ____ reading-room. A: the student's B: student's C: the students' D: students'
- 假设student类定义了Name,ClassInfor,StuNumber，利用对象初始化器student类的一个对象并初始化它的属性，下面写法正确的是（） A: student s1 =new student{Name=”ZhangSan”, ClassInfor =”IT201801”, StuNumber =”10000001”}; B: student s2 =new student{ ClassInfor =”IT201801”, Name=”ZhangSan”, StuNumber =”10000001”}; C: student s3 =new student{StuNumber =”10000001”}; D: 以上写法均正确
- 假设student类定义了Name,ClassInfor,StuNumber三个属性，利用对象初始化器来初始化student类的一个对象，下面写法正确的是（ ） A: student s1 =new student{Name=”ZhangSan”, ClassInfor =”IT201801”, StuNumber =”10000001”}; B: student s2 =new student{ ClassInfor =”IT201801”, Name=”ZhangSan”, StuNumber =”10000001”}; C: student s3 =new student{StuNumber =”10000001”}; D: 其它三种写法均正确