Java array list from a class

[soniajain]

Hi everybody!

I need to sort an Array List from a class.
I did this with "Collections.sort(ArrayList);" tried.
Yet, that doesn't work since it is by all accounts some unacceptable data type.
Double values are stored in this array list.

How could you at any point respond there?

 

[andre_luis]

that doesn't work since it is by all accounts some unacceptable data type.

One would expect to see the code and the specific compiler error you are talking about, not the narrative about whatever you meant.
Anyway, are you trying to sort values from different types?

 

[Justinli]

By default, the sort() function sorts the values in string order. This function works great for strings ("apple" will come before "banana").
However, if the numbers are sorted by string, "25" is greater than "100" because "2" is greater than "1". Therefore, the sort() method may produce incorrect results when sorting numeric values.

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