Search.java

import java.util.Scanner;
import java.util.ArrayList;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int n = Integer.parseInt(sc.nextLine());
        String randWord = sc.nextLine();
        ArrayList <String> sentences = new ArrayList<>();
        for (int i = 0; i < n; i++) {
            sentences.add(sc.nextLine());
        }
        System.out.println(sentences);

        ArrayList <String> newSentences = new ArrayList<>();

        for (String sentence : sentences) {
            if (sentence.contains(randWord)) {
                newSentences.add(sentence);
            }
        }
        System.out.println(newSentences);
    }
}