Getting max value from an arraylist of objects?

This has been answered multiple time already, but since it's the first result on google I will give a Java 8 answer with an example.

Take a look at the stream feature. Then you can get the max form an List of Objects like this:

List<ValuePairs> ourValues = new ArrayList<>();

ourValues.stream().max(comparing(ValuePairs::getMValue)).get()

By the way in your example, the attributes should be private. You can then access them with a getter.

With Java 8 you can use stream() together with it's predefined max() function and Comparator.comparing() functionality with lambda expression:

ValuePairs maxValue = values.stream().max(Comparator.comparing(v -> v.getMValue())).get();

Instead of using a lambda expression, you can also use the method reference directly:

ValuePairs maxValue = values.stream().max(Comparator.comparing(ValuePairs::getMValue)).get();

Use a Comparator with Collections.max() to let it know which is greater in comparison.

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