英文:
Basics of classes and objects: Java
问题
public class hotel{
private int Roomno;
private String Name;
private int Charges_day;
private int No_of_days;
public hotel(){
Roomno = 0;
Name = "";
Charges_day = 0;
No_of_days = 0;
}
public void Getit(int r, String n, int c, int no){
Roomno = r;
Name = n;
Charges_day = c;
No_of_days = no;
}
public String Showname(){
return Name;
}
public int Showroomno(){
return Roomno;
}
public int ShowCharges(){
return Charges_day;
}
public int ShowNoOfDays(){
return No_of_days;
}
public int Compute(){
return Charges_day * No_of_days;
}
}
英文:
The question that I received:
Define a class hotel with the following specifications:
Private members:
Roomno
Name
Charges_day
No_of_days
Public members:
Getit() -to enter the data members
Showit() to show the data member
Compute() -To calculate and return the total charges as charges_day * No_of_days
and a constructor function to initialize the data members.
The code I wrote:
public class hotel{
private int Roomno;
private String Name;
private int Charges_day;
private int No_of_days;
public hotel(){
Roomno = 0;
Name = "";
Charges_day = 0;
No_of_days = 0;
}
public void Getit(int r, String n, int c, int no){
Roomno = r;
Name = n;
Charges_day = c;
No_of_days = no;
}
public String Showname(){
return Name;
}
public int Showit(){
return Roomno;
return Charges_day;
return No_of_days;
}
public int Compute(){
return (Charges_day*No_of_days);
}
}
I am aware that I can't have more than 1 returns in one method function, but I'm unable to find a way around this.
答案1
得分: 0
关于要求，我建议您只需打印值
public void Showit(){
System.out.println(Name+" "+Roomno+" "+Charges_day+" "+No_of_days);
}
如果您需要一个返回对象的String表示的方法，请重写toString()
public String toString(){
return Name + " " + Roomno + " " + Charges_day + " " + No_of_days;
}
此外，Java 命名的约定是
- 对于方法和属性使用 lowerCamelCase 表示
英文:
Regarding the requirement, I'd suggest you just print the values
public void Showit(){
System.out.println(Name+" "+Roomno+" "+Charges_day+" "+No_of_days);
}
If you need a method that return a String representation of your object, override toString()
public String toString(){
return Name + " " + Roomno + " " + Charges_day + " " + No_of_days;
}
Also Java convention for naming is
- lowerCamelCase for methods and attributs
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