# Java 程序：按升序排序數組 > 原文： [https://beginnersbook.com/2018/10/java-program-to-sort-an-array-in-ascending-order/](https://beginnersbook.com/2018/10/java-program-to-sort-an-array-in-ascending-order/) 在這個 java [教程](https://beginnersbook.com/java-tutorial-for-beginners-with-examples/)中，我們使用臨時變量和嵌套`for`循環按升序對數組進行排序。我們使用`Scanner`類來獲取用戶的輸入。 ## Java 示例：按升序排序數組 在該程序中，要求用戶輸入他想要輸入的元素的數量。根據輸入，我們聲明了一個`int`數組，然后我們接受用戶輸入的所有[數字并將它們存儲在數組中](https://beginnersbook.com/2014/07/java-program-to-get-input-from-user/)。 一旦我們將所有數字存儲在數組中，我們就會使用[嵌套`for`循環](https://beginnersbook.com/2015/03/for-loop-in-java-with-example/)對它們進行排序。 ```java import java.util.Scanner; public class JavaExample { public static void main(String[] args) { int count, temp; //User inputs the array size Scanner scan = new Scanner(System.in); System.out.print("Enter number of elements you want in the array: "); count = scan.nextInt(); int num[] = new int[count]; System.out.println("Enter array elements:"); for (int i = 0; i < count; i++) { num[i] = scan.nextInt(); } scan.close(); for (int i = 0; i < count; i++) { for (int j = i + 1; j < count; j++) { if (num[i] > num[j]) { temp = num[i]; num[i] = num[j]; num[j] = temp; } } } System.out.print("Array Elements in Ascending Order: "); for (int i = 0; i < count - 1; i++) { System.out.print(num[i] + ", "); } System.out.print(num[count - 1]); } } ``` 輸出：  **相關 Java 示例：** 1. [Java 程序：按升序和降序排序](https://beginnersbook.com/2014/07/java-program-for-bubble-sort-in-ascending-descending-order/) 2. [Java 程序：使用按位 xor 運算符交換兩個數字](https://beginnersbook.com/2017/09/java-program-to-swap-two-numbers-using-bitwise-xor-operator/) 3. [Java 程序：按字母順序排序字符串](https://beginnersbook.com/2018/10/java-program-to-sort-strings-in-an-alphabetical-order/) 4. [Java 程序：反轉數組](https://beginnersbook.com/2017/09/java-program-to-reverse-the-array/)