Access to the outside value from Java Lambda Expression

Question

I have the sample code below

String value="xyz";
dataList.stream().filter(obj -> obj.equals(value))

My question is: how to have the value available in my lambda expression in Filter.

Answer 1

It is directly accessible if you are using Java 8, see the below code.

 public static void main(String args[]) {
        String value="xyz";
        List<String> dataList = new ArrayList<>();
        dataList.add("abc");
        dataList.add("def");
        dataList.add("ghi");
        dataList.add("xyz");
        dataList.add("jkl");
        dataList.add("mno");



        dataList.stream().filter(obj -> obj.equals(value)).forEach(System.out::println);
    }