java comparator lambda code example

Example 1: lambda comparator java

Comparator<Developer> byName =
	(Developer o1, Developer o2)->o1.getName().compareTo(o2.getName());

Example 2: how to use lambda in java

StateOwner stateOwner = new StateOwner();

stateOwner.addStateListener(
    (oldState, newState) -> System.out.println("State changed")
);

Example 3: java 8 lambda comparator

Comparator<Developer> byName = new Comparator<Developer>() {
        @Override
        public int compare(Developer o1, Developer o2) {
            return o1.getName().compareTo(o2.getName());
        }
    };