ListManipulationAdvanced_Lists_Lab

package feb19_Lists_Lab;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Scanner;
import java.util.stream.Collectors;

public class ListManipulationAdvanced {
    public static void main(String[] args) {
        @SuppressWarnings("resource")

        Scanner sc = new Scanner(System.in);

        List<Integer> input = Arrays.stream(sc.nextLine().split("\\s+")).map(Integer::parseInt)
                .collect(Collectors.toList());

        String command = "";
        final String stop = "end";
        while (!stop.equals(command = sc.nextLine())) {
            String[] inputData = command.split("\\s+");
            String toDo = inputData[0];

            switch (toDo) {
            case "Contains":
                int number = Integer.parseInt(inputData[1]);
                boolean isNumberInList = input.contains(number);
                String result = isNumberInList ? "Yes" : "No such number";
                System.out.println(result);
                break;
            case "Print":
                int reminder = inputData[1].equals("even") ? 0 : 1;
                input.stream().filter(n -> n % 2 == reminder).forEach(n -> System.out.print(n + " "));
                System.out.println();
                break;
            case "Get":
                int sum = input.stream().map(e -> e.intValue()).reduce(0, (e, r) -> e + r).intValue();
                System.out.println(sum);
                break;
            case "Filter":
                String condition = inputData[1];
                int numberCond = Integer.parseInt(inputData[2]);

                List<Integer> output = new ArrayList<>();

                switch (condition) {
                case "<":
                    output = input.stream().filter(e -> e < numberCond).collect(Collectors.toList());
                    break;
                case "<=":
                    output = input.stream().filter(e -> e <= numberCond).collect(Collectors.toList());
                    break;
                case ">":
                    output = input.stream().filter(e -> e > numberCond).collect(Collectors.toList());
                    break;
                case ">=":
                    output = input.stream().filter(e -> e >= numberCond).collect(Collectors.toList());
                    break;
                }
                System.out.println(output.toString().replaceAll("\\[|,|\\]", ""));
                break;
            }
        }
    }
}