Sorting ArrayList of Objects by Object attribute

Question

I am having an Arraylist of Objects. Those object have an attribute or datatype - \'String\'. I need to sort the Arraylist by that string. How to achieve this?

Answer 1

You need to write a Comparator and use Collections.sort(List, Comparator to sort your List.

Or else, your MyObject can also implements Comparable, defining a natural ordering that compares on your specific attribute, and then use Collections.sort(List instead.

See also

• Java Tutorials/Object Ordering

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