You are given a partial implementation of a class called `ListUtil` which contains a static method `filterEvenNumbers`. The `filterEvenNumbers` method takes an integer array as input and returns a new array containing only the even numbers from the input array.

Your task is to complete the implementation of the `filterEvenNumbers` method in the `ListUtil` class.

Implement the `filterEvenNumbers` method as described below:
- Create a new array to store the even numbers.
- Iterate over each element in the input array.
- Check if the current element is even. If it is, add it to the new array.
- Return the new array containing only the even numbers.

Note:
- An even number is any integer that is divisible by 2 without leaving a remainder.
- The returned array should only contain the even numbers in the same order as they appear in the input array.
- If there are no even numbers in the input array, the method should return an empty array.

Complete the implementation of the `filterEvenNumbers` method.

```java
public class ListUtil {
    
    public static int[] filterEvenNumbers(int[] arr) {
        // TODO: Implement the method
        
    }
    
    public static void main(String[] args) {
        int[] numbers = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
        int[] result = filterEvenNumbers(numbers);
        
        System.out.println(Arrays.toString(result));
    }
}
```
user
Sure, I'd be happy to help you complete the implementation of the `filterEvenNumbers` method in the `ListUtil` class. Here's the code:

```java
public class ListUtil {
    public static int[] filterEvenNumbers(int[] arr) {
        // Create a new array to store the even numbers
        int[] evenNumbers = new int[arr.length];

        // Iterate over each element in the input array
        for (int I = 0; I < arr.length; i++) {

            // Check if the current element is even
            if (arr[i] % 2 == 0) {

                // If it is, add it to the new array
                evenNumbers[i] = arr[i];
            }
        }

        // Return the new array containing only the even numbers
        return evenNumbers;
    }

    public static void main(String[] args) {
        int[] numbers = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
        int[] result = filterEvenNumbers(numbers);

        System.out.println(Arrays.toString(result));
    }
}
```

This method first creates a new array of the same length as the input array, since we want to maintain the same order of the even numbers as in the original array. Then, it iterates over each element in the input array, checking if it's even. If it is, it adds it to the new array. Finally, it returns the resulting even numbers array. In the `main` method, it's simply creating an example array of numbers, passing it to the `filterEvenNumbers` method, and then printing the resulting array. Let me know if you have any further questions!
assistant
You are given a partial implementation of a class called `ListUtil` which contains a static method `filterEvenNumbers`. The `filterEvenNumbers` method takes an integer array as input and returns a new array containing only the even numbers from the input array.

Your task is to complete the implementation of the `filterEvenNumbers` method in the `ListUtil` class.

Implement the `filterEvenNumbers` method as described below:
- Create a new array to store the even numbers.
- Iterate over each element in the input array.
- Check if the current element is even. If it is, add it to the new array.
- Return the new array containing only the even numbers.

Note:
- An even number is any integer that is divisible by 2 without leaving a remainder.
- The returned array should only contain the even numbers in the same order as they appear in the input array.
- If there are no even numbers in the input array, the method should return an empty array.

Complete the implementation of the `filterEvenNumbers` method.

```java
public class ListUtil {
    
    public static int[] filterEvenNumbers(int[] arr) {
        // TODO: Implement the method
        
    }
    
    public static void main(String[] args) {
        int[] numbers = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
        int[] result = filterEvenNumbers(numbers);
        
        System.out.println(Arrays.toString(result));
    }
}
```
user
Sure, here's how you can implement the `filterEvenNumbers` method in Java:

```java
public class ListUtil {

    public static int[] filterEvenNumbers(int[] arr) {
        // Initialize a new list to store the even numbers
        List<Integer> evenNumbers = new ArrayList<>();

        // Iterate over each element in the input array
        for (int num : arr) {
            // Check if the current element is even
            if (num % 2 == 0) {
                // If it is, add it to the list
                evenNumbers.add(num);
            }
        }

        // Convert the list to an array and return it
        int[] result = new int[evenNumbers.size()];
        for (int i = 0; i < evenNumbers.size(); i++) {
            result[i] = evenNumbers.get(i);
        }
        return result;
    }

    public static void main(String[] args) {
        int[] numbers = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
        int[] result = filterEvenNumbers(numbers);

        System.out.println(Arrays.toString(result));
    }
}
```

In this implementation, I've used a `List` to store the even numbers. This is because we don't know in advance how many even numbers there will be in the input array. After the loop, I convert the list to an array and return it. The `main` method is used to test the `filterEvenNumbers` method.
assistant