我有这种方法为每个循环使用if语句
public static Apartment getApartment(String aNumber)
//for loop to iterate through the list of apartments
{
for (Apartment x : listOfApartments)
{
// Variable to hold the value of returned apartment
if (x.getApartmentNo().equalsIgnoreCase(aNumber))
{ Apartment chosen = x;
}
else
{JOptionPane.showMessageDialog(null, "Apartment not found");
}
}
return chosen;
}
我收到找不到选择的Symbol的错误。我认为我在错误的位置声明了变量。
有什么帮助吗?
注意:这是一个采用String并返回Object Apartment的方法。
最佳答案
可接受的答案是正确的,但我强烈建议避免使用多个return语句。具有多个return语句的代码更难管理。似乎还没什么大不了的,但是当代码增长时,这可能成为一个现实问题。
public static Apartment getApartment(String aNumber)
{
Apartment result = null;
for (Apartment apartment : listOfApartments)
{
if (apartment.getApartmentNo().equalsIgnoreCase(aNumber))
{
result = apartment;
break;
}
}
if (result == null)
{
JOptionPane.showMessageDialog(null, "Apartment not found");
}
return result;
}
关于java - 每个循环的if语句的返回值,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/10309264/