Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.function.Predicate;

public class Main {
    public static void main(String[] args) {
        List<Integer> numbers = Arrays.asList(1, 7, 3, 11);
        List<String> names = Arrays.asList("John", "Jane", "Max", "Katherine");

        List<Integer> filteredNumbers = filterIt(numbers, x -> x > 5);
        System.out.println("filteredNumbers = " + filteredNumbers);

        List<String> filteredNames = filterIt(names, x -> x.length() > 3);
        System.out.println("filteredNames = " + filteredNames);
    }

    public static <T> List<T> filterIt(List<T> candidates, Predicate<T> condition) {
        List<T> filteredList = new ArrayList<>();

        for (T candidate : candidates) {
            if (condition.test(candidate)) {
                filteredList.add(candidate);
            }
        }

        return filteredList;
    }
}