颠倒二维数组中字符串的顺序-- Java

public class ReverseStringArray {
    public static void reverseStringArray(String[][] array) {
        for (int i = 0; i < array.length; i++) {
            for (int j = 0; j < array[i].length; j++) {
                array[i][j] = reverseString(array[i][j]);
            }
        }
    }
    
    private static String reverseString(String str) {
        StringBuilder sb = new StringBuilder(str);
        return sb.reverse().toString();
    }
    
    public static void main(String[] args) {
        String[][] array = {{"Hello", "World"}, {"Java", "Programming"}};
        
        // 原始数组
        System.out.println("Original array:");
        for (String[] row : array) {
            for (String str : row) {
                System.out.print(str + " ");
            }
            System.out.println();
        }
        
        // 颠倒字符串顺序
        reverseStringArray(array);
        
        // 颠倒后的数组
        System.out.println("\nReversed array:");
        for (String[] row : array) {
            for (String str : row) {
                System.out.print(str + " ");
            }
            System.out.println();
        }
    }
}