Java Arrays: Definition and Initialization Methods

There are several ways to define and assign values to arrays in Java.

1. Define and initialize arrays directly using array literals.

int[] numbers = {1, 2, 3, 4, 5};

1. fresh

int[] numbers = new int[5];
numbers[0] = 1;
numbers[1] = 2;
numbers[2] = 3;
numbers[3] = 4;
numbers[4] = 5;

1. Assign values using a looping structure.

int[] numbers = new int[5];
for (int i = 0; i < numbers.length; i++) {
    numbers[i] = i + 1;
}

1. complete

int[] numbers = new int[5];
Arrays.fill(numbers, 0); // 将数组中的所有元素填充为0

Here are several methods of defining and assigning values to arrays in Java.