Question

import java.lang.UnsupportedOperationException;
import java.util.Scanner;

public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
  
// parse the number of strings
int numStrings = Integer.parseInt(sc.nextLine());
  
// parse each string
String[] stringsArray = new String[numStrings];
for (int i = 0; i < numStrings; i++) {
stringsArray[i] = sc.nextLine();
}
  
// print whether there are duplicates
System.out.println(hasDuplicates(stringsArray));
}
  
private static boolean hasDuplicates(String[] stringsArray) {
// TODO fill this in and remove the below line
int numWords =
}
}

Answer 1

import java.lang.UnsupportedOperationException;
import java.util.Scanner;

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

// parse the number of strings
        int numStrings = Integer.parseInt(sc.nextLine());

// parse each string
        String[] stringsArray = new String[numStrings];
        for (int i = 0; i < numStrings; i++) {
            stringsArray[i] = sc.nextLine();
        }

// print whether there are duplicates
        System.out.println(hasDuplicates(stringsArray));
    }

    private static boolean hasDuplicates(String[] stringsArray) {
        int numWords = stringsArray.length;
        for(int i = 0;i<numWords;i++){
            for(int j = i+1;j<numWords;j++){
                if(stringsArray[i].equals(stringsArray[j])){
                    return true;
                }
            }
        }
        return false;
    }
}