What are the three ways to initialize an array in java?

Three initialization methods:

1. Static initialization: create and assign value

2. Dynamic initialization: create first and then assign value

3. Default initialization: If no value is assigned after creation, the default value of the corresponding data type will be assigned

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Let’s take a look Here’s the specific code:

public class Test3 {
    public static void main(String[] args) {
        // 1、声明数组
        int[] array = null;
        // 2、创建数组
        array = new int[10];
        // 3、给数组元素中赋值
        for (int i = 0; i <array.length ; i++) {
            array[i] = i;
        }

        // 1、静态初始化：创建 + 赋值
        int[] array2 = {0,1,2,3};
        // 2、动态初始化：先创建再赋值
        int[] array3 = new int[10];
        for (int i = 0; i < array3.length ; i++) {
            array3[i] = i;
        }
        // 3、默认初始化
    }
}

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