public void lambdas()

in java-samples/src/main/java/com/jetbrains/inspections/Java8Inspections.java [29:59]

• 20 lines of code
• 3 McCabe index (conditional complexity)

    public void lambdas() {
        //Anonymous function Function<Function, Function>() can be replaced with lambda
        Function<Function, Function> f1 = new Function<Function, Function>() {
            @Override
            public Function apply(Function function) {
                return function.compose(function);
            }
        };

        //Remove redundant types
        Function<Function, Function> f3 = (Function function) -> function.compose(function);

        //Expand lambda expression body to {...}
        Function<Function, Function> f2 = function -> function.compose(function);

        //Statement lambda can be replaced with expression lambda
        Function<Function, Function> f4 = (Function function) -> {
            return function.compose(function);
        };

        //Lambda can be replaced with method reference
        sort(stringArray, (s1, s2) -> s1.compareToIgnoreCase(s2));

        //Replace with forEach on foo
        ArrayList<String> foo = getStrings();
        for (String s : foo) {
            if (s != null) {
                out.println(s);
            }
        }
    }