Question

急求！！求解答java问题

、创建学生类，类中成员变量包括学生学号，姓名，年龄，班级，专业，所属学院；学生类中包括构造方法，可初始化学生的个人信息；toString（）方法返回字符串类型学生个人信息，Printinfo方法打印输出学生信息；创建好类后，进行实例化，并调用Printinfo打印输出方法打印学生信息。

Answer 1

代码如下，运行结果如图所示。

class Student{

String name;

int age;

String banJi;

String major;

String xueYuan;

public Student(String name,int age,String banJi,String major,String xueYuan){

this.name=name;

this.age=age;

this.banJi=banJi;

this.major=major;

this.xueYuan=xueYuan;

}

@Override

public String toString()

{

return "姓名:"+this.name+", 年龄:"+this.age+", 班级:"+

this.banJi+" ,专业:"+this.major+", 所属学院:"+this.xueYuan;

}

public void Printiofo(){

System.out.println(this.toString());

}

}

public class Practice

{

public static void main(String args[]){

Student student=new Student("张三",19,"2019级2班","网络工程","网络与通信学院");

student.Printiofo();

}

}

Answer 2

public class StudentDemo {
public static void main(String[] args) {
Student s = new Student("10086","张三",20,"电气一班","电气工程及其自动化","电气学院");
s.Printinfo();
}
}
class Student{
private String id;
private String name;
private int age;
private String banJi;
private String major;
private String xueYuan;

public Student() {
}

public Student(String id, String name, int age, String banJi, String major, String xueYuan) {
this.id = id;
this.name = name;
this.age = age;
this.banJi = banJi;
this.major = major;
this.xueYuan = xueYuan;
}

public String getId() {
return id;
}

public void setId(String id) {
this.id = id;
}

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;
}

public String getBanJi() {
return banJi;
}

public void setBanJi(String banJi) {
this.banJi = banJi;
}

public String getMajor() {
return major;
}

public void setMajor(String major) {
this.major = major;
}

public String getXueYuan() {
return xueYuan;
}

public void setXueYuan(String xueYuan) {
this.xueYuan = xueYuan;
}

@Override
public String toString() {
return "Student{" +
"id='" + id + '\'' +
", name='" + name + '\'' +
", age=" + age +
", banJi='" + banJi + '\'' +
", major='" + major + '\'' +
", xueYuan='" + xueYuan + '\'' +
'}';
}
public void Printinfo(){
System.out.println(this.getId()+","
+ this.getName()+","+this.getAge()+","
+this.getBanJi()+","+this.getMajor()
+","+this.getXueYuan());
}
}

Answer 3

这个问题问的很广泛，我觉的你回答的思路是可以的，不知道面试官当时的反映是怎么样的，也就是说在Java中到处都体现OOP的编程思想，你首先可以说他们的三大特性进行详细描述，说出他们之间的优缺点，从而体现出当初为什么sun公司这么设计的理念，你如果在做个项目的话，可以在把OOP的思想体现在你做项目的过程中，即能把问题融入实际，又能把问题引到你知道的项目上面，那个时候话语权就跟你走了。这是一种回答方式，仅供参考。