Question

一道Java题目，关于使用Super语句的，有人会吗求助

Answer 1

/** * @author 2015 班级类 */public class SchoolClass { private String cno;// 班级号 private String name;// 班级名称 public String getCno() { return cno; } public void setCno(String cno) { this.cno = cno; } public String getName() { return name; } public void setName(String name) { this.name = name; } protected SchoolClass(String cno, String name) { super(); this.cno = cno; this.name = name; } protected SchoolClass() { super(); } /** * 班级信息 */ public void showInfo() { System.out.println("班级号：" + cno + " 班级名称：" + name); }}

/** * @author 2015 学生 */public class Stu extends SchoolClass { private String sno; private String sname; protected Stu(String cno, String cname, String sno, String sname) { super(cno, cname); this.sno = sno; this.sname = sname; } public void showInfo() { System.out.println("姓名：" + sname+" 班级号：" + getCno() + " 班级名称：" + getName()); } public static void main(String[] args) {// 学生的信息 ：计算机01班、s001、张三 Stu stu = new Stu("s001", "计算机01班", "001", "张三"); stu.showInfo(); }}

追答

Answer 2

package test1;

public class SchoolClass {
private String no;
private String name;

public SchoolClass(){

}
public SchoolClass(String No,String Name){
no = No;
name = Name;
}
public String getNo() {
return no;
}

public String getName() {
return name;
}

public void showInfo(){
System.out.println("班级号：\t"+this.getNo());
System.out.println("班级名称：\t"+this.getName());
}
}
package test1;

public class Student extends SchoolClass {

private String sno;
private String sname;

public Student(){

}
public Student(String sNo,String sName,String No,String name){
super(No,name);
sno = sNo;
sname = sName;

}

public String getSno() {
return sno;
}
public String getsName() {
return sname;
}

@Override
public void showInfo() {
// TODO 自动生成的方法存根
System.out.println("班级：\t"+super.getName());
System.out.println("学号：\t"+this.getSno());
System.out.println("姓名：\t"+this.getsName());
}
public static void main(String[] args) {
// TODO 自动生成的方法存根
Student s = new Student("s001","张三","001","计算机一班");
s.showInfo();
}
}

Answer 3

package test;

public class SchoolClass {

private String cno;
private String name;

public SchoolClass(String cno, String name) {
super();
this.cno = cno;
this.name = name;
}

public String getCno() {
return cno;
}

public void setCno(String cno) {
this.cno = cno;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public String showInfo() {
return "SchoolClass [cno=" + cno + ", name=" + name + "]";
}
}

追问

请问这个没有student类吗

追答

public class Student extends SchoolClass {
private String sno;
private String name;
public Student(String cno, String cname, String sno, String sname) {
super(cno, cname);
this.sno = sno;
name = sname;
}
@Override
public String showInfo() {
return super.showInfo() + "Student [sno=" + sno + ", name=" + this.name
+ "]";
}
public static void main(String[] args) {
System.out.println(new Student("1", "计算机一班", "s001", "张山").showInfo());
}
}

追问

不好意思，还想请问我不想输出那个“1”，该怎么改一下呢

Answer 4

都这么久了，面试早该结束了，还需要回答么？

追问

我又不是面试的，刚开始学而已啊

追答

好吧，帮你写写，但你得等我，然后给分啊。10分钟

追问

嗯嗯谢谢你

我写了一份你帮改下也可以