Equal Elements In 2 Arrays

import java.util.Scanner;
import java.util.Arrays;

public class SoftUni {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter the first line of elements: ");
        String first = sc.nextLine();
        String[] firstArray = first.split(" ");
        System.out.print("Enter the second line of elements: ");
        String second = sc.nextLine();
        String[] secondArray = second.split(" ");

        //setting for-loop limits
        int arraySize;
        int arraySize2;
        if(firstArray.length > secondArray.length){
            arraySize = firstArray.length;
            arraySize2 = secondArray.length;
        }
        else{
            arraySize = secondArray.length;
            arraySize2 = firstArray.length;
        }
        String endString = "";
        for(int i = 0;i<arraySize;i++){
            for(int j = 0;j<arraySize2;j++){
                if(firstArray[i].equals(secondArray[j])){
                    endString += firstArray[i] + " ";
                }
            }
        }
        System.out.println(endString);

    }
}