我需要幫助。我堅持這一點。對象創建主要不在其他類別執行
這是一流的餐廳。我想使用我的對象wtr1,wtr2,wtr3是服務員class.I發起他們在我的主。
public class restaurant extends player{
private final waiters wtr1 , wtr2 ,wtr3;
public restaurant(waiters wt1 ,waiters wt2 , waiters wt3)
{
super();
this.wtr1=wt1;
this.wtr2=wt2;
this.wtr3=wt3;
public float calculateSalary()
{
employee emp = new employee();
float wtrsal1 = 0;
float wtrsal2 = 0;
float wtrsal3 = 0;
float sal=0;
switch (wtr1.wExp)
{
case "low":
wtrsal1 = emp.salarywaiter[0];
break;
case "medium":
wtrsal1 = emp.salarywaiter[1];
break;
case "high":
wtrsal1 = emp.salarywaiter[2];
break;
}
switch (wtr2.wExp)
{
case "low":
wtrsal2 = emp.salarywaiter[0];
break;
case "medium":
wtrsal2 = emp.salarywaiter[1];
break;
case "high":
wtrsal2 = emp.salarywaiter[2];
break;
}
switch (wtr3.wExp)
{
case "low":
wtrsal3 = emp.salarywaiter[0];
break;
case "medium":
wtrsal3 = emp.salarywaiter[1];
break;
case "high":
wtrsal3 = emp.salarywaiter[2];
break;
}
sal = wtrsal1 + wtrsal2 + wtrsal3;
return sal;
}
這是我main.I不知道如果在參數休息應該是空的,但它是由default.Program犯規excecute設置,它給了我錯誤wt1.wExp是錯誤的,System.out.println(rest.calculateSalary());
是錯的。
waiters wt1 = new waiters (19 , 0);
waiters wt2 = new waiters(20 , 0);
waiters wt3 = new waiters (21 , 0);
restaurant rest= new restaurant(null, null, null);
System.out.println(rest.calculateSalary());
這裏的服務員類:
public class waiters extends employee {
String wname;
String wsurname;
String wExp;
public waiters(int i , int n)
{
wname = getname(i);
wsurname = getsurname(i);
wExp = ExpirienceLevel[n];
}
}
爲什麼你標記了這個多重繼承?我在這個問題上看不到多重繼承。另外,您應該查找Java命名約定,並更注重縮進/格式。您可以更輕鬆地閱讀代碼,更好 - 無論是爲他人還是爲您。如果您發佈一個簡短但完整的示例,而不是在這裏和那裏摘錄,這也會有所幫助。 – 2014-11-04 18:08:57