初始化自定义类数组

public class CustomArray {
    private int size;
    private int[] array;

    public CustomArray(int size) {
        this.size = size;
        this.array = new int[size];
        initializeArray();
    }

    private void initializeArray() {
        for (int i = 0; i < size; i++) {
            array[i] = i;
        }
    }

    public int getSize() {
        return size;
    }

    public int getElement(int index) {
        if (index >= 0 && index < size) {
            return array[index];
        } else {
            throw new IndexOutOfBoundsException("Index out of range");
        }
    }

    public void setElement(int index, int value) {
        if (index >= 0 && index < size) {
            array[index] = value;
        } else {
            throw new IndexOutOfBoundsException("Index out of range");
        }
    }

    // Other methods can be added based on specific requirements
}

CustomArray customArray = new CustomArray(5);
System.out.println("Size: " + customArray.getSize());  // 输出：Size: 5

System.out.println("Element at index 2: " + customArray.getElement(2));  // 输出：Element at index 2: 2

customArray.setElement(3, 10);
System.out.println("Modified element at index 3: " + customArray.getElement(3));  // 输出：Modified element at index 3: 10