How to create an array and add elements in Java?

In Java, you can create an array and add elements by following these steps:

1. Declare an array variable: First, you need to declare an array variable to store the array object. The syntax is as follows:

数据类型[] 数组名;

For example, declare a variable of type integer array:

int[] numbers;

1. fresh

数组名 = new 数据类型[数组长度];

For example, create an integer array with a length of 5.

numbers = new int[5];

1. Add elements: You can access and modify elements in an array using array indexes. Array indexes start at 0 and increase sequentially. The syntax is as follows:

数组名[索引] = 值;

For example, assign the value of 10 to the first element of the array.

numbers[0] = 10;

The complete example code is shown below:

public class Main {
    public static void main(String[] args) {
        int[] numbers; // 声明数组变量
        numbers = new int[5]; // 创建数组对象
        
        numbers[0] = 10; // 添加元素
        numbers[1] = 20;
        numbers[2] = 30;
        numbers[3] = 40;
        numbers[4] = 50;
        
        System.out.println("数组元素：");
        for (int i = 0; i < numbers.length; i++) {
            System.out.println(numbers[i]);
        }
    }
}

Output:

数组元素：
10
20
30
40
50

This successfully creates an integer array of length 5 and adds the corresponding elements.