UC知道简单的java代码错误
来源：百度知道 编辑：UC知道 时间：2024/05/10 09:52:46
public class Text11_4{
public static void main (string[] args){
// creat a student1
Student student1= new Student( "english", "w") ;
System.out.println("Details: " + student.toString());
}
abstract class Person{
protected string firstname;
protected string midname;
protected string lastname;
// constructor
protected Person(){
}
// return firstname
String getFirstname(){
return firstname;
}
public void setFirstname(){
this.firstname = firstname;
}
// return midname
String getMidname(){
return midname;
}
public void setMidname(){
this.midname = midname;
}
// return lastname
String getLastname(){
return lastname;
}
public void setLastname(){
this.lastname = lastname;
}
public static void main (string[] args){
// creat a student1
Student student1= new Student( "english", "w") ;
System.out.println("Details: " + student.toString());
}
abstract class Person{
protected string firstname;
protected string midname;
protected string lastname;
// constructor
protected Person(){
}
// return firstname
String getFirstname(){
return firstname;
}
public void setFirstname(){
this.firstname = firstname;
}
// return midname
String getMidname(){
return midname;
}
public void setMidname(){
this.midname = midname;
}
// return lastname
String getLastname(){
return lastname;
}
public void setLastname(){
this.lastname = lastname;
}
具体什么错该给出来撒~~!!
看你这代码错的地方太多啦,不知道是你提问时的手误,还是你在编程序过程就是这样的;
就你这些代码问题多着呢:
1,好多"String"类型写成了"string" ,把大写的"S"小写了;
2,你写的Person类和Student类的格式都有问题,先把排版搞规范点;
3,在下面这段代码中就有几个问题
// creat a student1
Student student1= new Student( "english", "w") ;
System.out.println("Details: " + student.toString());
首先你你既然声明的是"student1"这个对象,为什么用"student"来调用toString()方法,student是哪来的?
还有new Student( "english", "w")中,你写的Student类的构造函数的参数好像不是两个啊???这怎么冒出两个参数啦?
4,toString()方法前要用public 修饰
public void setLastname(){
this.lastname = lastname;
} 里面的lastname没有申明！还有前面的那个fistname!
靠，复制了一份全是红叉，String都小写，不看了，直接delete掉
什么错误又不说出来,叫人怎么帮你~~~
你有个string的s小写的，不知道是不主要问题
发下错误信息看看
看不明白