Getting this error when trying to run this program - java.lang.ArrayIndexOutOfBoundsException: Index 1 out of bounds for length 1   here is the program below.   import java.util.ArrayList; import java.util.Scanner; import java.io.File; import java.io.FileNotFoundException; public class Largest_Country { public static ArrayList readCountry(String filename) throws FileNotFoundException { // Create an arraylist of the country class ArrayList countries = new ArrayList(); // Create a scanner object to open the input file Scanner scan = new Scanner(new File(filename)); // Initialize a string variable to read the file String line = ""; while(scan.hasNextLine()) { // Read the file line by line line = scan.nextLine(); // Split the line at spaces, and assign the values to // a string array String[] details = line.split(" "); // Create object of the class Country, and pass the values // to the object Country country_info = new Country(details[0], Long.parseLong(details[1]), Long.parseLong(details[2])); // Add the object to the arraylist countries.add(country_info); } // Return the arraylist return countries; } // Define the countryWithLargestArea() method public static Country countryWithLargestArea(ArrayList countries) { // Create an object of the class, and assign the // first value from the arraylist Country largest_area_country = countries.get(0); for(int x = 0; x < countries.size(); x++) { // Check if the value of area at index x is greater than // the value at largest_area_country if(countries.get(x).getCountryArea() > largest_area_country.getCountryArea()) { // Assign the values to largest_area_country largest_area_country = countries.get(x); } } // Return the country details return largest_area_country; } // Define the countryWithLargestPopulation() method public static Country countryWithLargestPopulation(ArrayList countries) { // Create an object of the class, and assign the // first value from the arraylist Country largest_population_country = countries.get(0); for(int x = 0; x < countries.size(); x++) { // Check if the value of area at index x is greater than // the value at largest_population_country if(countries.get(x).getCountryPopulation() > largest_population_country.getCountryPopulation()) { // Assign the values to largest_population_country largest_population_country = countries.get(x); } } // Return the country details return largest_population_country; } // Define the countryWithLargestPopulationDensity() method public static Country countryWithLargestPopulationDensity(ArrayList countries) { // Create an object of the class, and assign the // first value from the arraylist Country largest_population_density_country = countries.get(0); for(int x = 0; x < countries.size(); x++) { // Check if the value of area at index x is greater than // the value at largest_population_density_country if(countries.get(x).getPopulationDensity() > largest_population_density_country.getPopulationDensity()) { // Assign the values to largest_population_density_country largest_population_density_country = countries.get(x); } } // Return the country details return largest_population_density_country; } // Define the main() method public static void main(String[] args) { try { // Create an arraylist, and call the readCountry() method ArrayList countries = readCountry("countrydata.txt"); // Call the countryWithLargestArea(), and display the // country having largest area System.out.println("The country with the largest area:\n" + countryWithLargestArea(countries).printCountry()); // Call the countryWithLargestArea(), and display the // country having largest population System.out.println("\nThe country with the largest population:\n" + countryWithLargestPopulation(countries).printCountry()); // Call the countryWithLargestPopulationDensity(), and display the // country having largest population density System.out.println("\nThe country with the largest population density:\n" + countryWithLargestPopulationDensity(countries).printCountry()); } catch(FileNotFoundException e) { // Display file not found exception System.out.println("File not found!!"); } } }

Getting this error when trying to run this program - java.lang.ArrayIndexOutOfBoundsException: Index 1 out of bounds for length 1

here is the program below.

import java.util.ArrayList;
import java.util.Scanner;
import java.io.File;
import java.io.FileNotFoundException;

public class Largest_Country
{
public static ArrayList<Country> readCountry(String filename) throws FileNotFoundException

{

// Create an arraylist of the country class

ArrayList<Country> countries = new ArrayList<Country>();

// Create a scanner object to open the input file

Scanner scan = new Scanner(new File(filename));

// Initialize a string variable to read the file

String line = "";

while(scan.hasNextLine())

{

// Read the file line by line

line = scan.nextLine();

// Split the line at spaces, and assign the values to

// a string array

String[] details = line.split(" ");

// Create object of the class Country, and pass the values

// to the object

Country country_info = new Country(details[0], Long.parseLong(details[1]), Long.parseLong(details[2]));

// Add the object to the arraylist

countries.add(country_info);

}

// Return the arraylist

return countries;

}

// Define the countryWithLargestArea() method

public static Country countryWithLargestArea(ArrayList<Country> countries)

{

// Create an object of the class, and assign the

// first value from the arraylist

Country largest_area_country = countries.get(0);

for(int x = 0; x < countries.size(); x++)

{

// Check if the value of area at index x is greater than

// the value at largest_area_country

if(countries.get(x).getCountryArea() > largest_area_country.getCountryArea())

{

// Assign the values to largest_area_country

largest_area_country = countries.get(x);

}

}

// Return the country details

return largest_area_country;

}

// Define the countryWithLargestPopulation() method

public static Country countryWithLargestPopulation(ArrayList<Country> countries)

{

// Create an object of the class, and assign the

// first value from the arraylist

Country largest_population_country = countries.get(0);

for(int x = 0; x < countries.size(); x++)

{

// Check if the value of area at index x is greater than

// the value at largest_population_country

if(countries.get(x).getCountryPopulation() > largest_population_country.getCountryPopulation())

{

// Assign the values to largest_population_country

largest_population_country = countries.get(x);

}

}

// Return the country details

return largest_population_country;

}

// Define the countryWithLargestPopulationDensity() method

public static Country countryWithLargestPopulationDensity(ArrayList<Country> countries)

{

// Create an object of the class, and assign the

// first value from the arraylist

Country largest_population_density_country = countries.get(0);

for(int x = 0; x < countries.size(); x++)

{

// Check if the value of area at index x is greater than

// the value at largest_population_density_country

if(countries.get(x).getPopulationDensity() > largest_population_density_country.getPopulationDensity())

{

// Assign the values to largest_population_density_country

largest_population_density_country = countries.get(x);

}

}

// Return the country details

return largest_population_density_country;

}

// Define the main() method

public static void main(String[] args)

{

try

{

// Create an arraylist, and call the readCountry() method

ArrayList<Country> countries = readCountry("countrydata.txt");

// Call the countryWithLargestArea(), and display the

// country having largest area

System.out.println("The country with the largest area:\n" + countryWithLargestArea(countries).printCountry());

// Call the countryWithLargestArea(), and display the

// country having largest population

System.out.println("\nThe country with the largest population:\n" + countryWithLargestPopulation(countries).printCountry());

// Call the countryWithLargestPopulationDensity(), and display the

// country having largest population density

System.out.println("\nThe country with the largest population density:\n" + countryWithLargestPopulationDensity(countries).printCountry());

}

catch(FileNotFoundException e)

{

// Display file not found exception

System.out.println("File not found!!");

}

}

}