用java1. 利用随机1~9整数生成3*3的二维数组，使二维数组每行，每列、以及斜线上的数字之和均为15，并输出这个二维数组

public class Main {
    public static void main(String[] args) {
        int[][] arr = new int[3][3];
        int[] sumRow = new int[3];
        int[] sumCol = new int[3];
        int sumDiagonal = 0;
        int sumAntiDiagonal = 0;
        
        // 生成随机数组并计算行、列、对角线上的和
        while (true) {
            arr = generateRandomArray();
            for (int i = 0; i < 3; i++) {
                sumRow[i] = 0;
                sumCol[i] = 0;
                sumDiagonal += arr[i][i];
                sumAntiDiagonal += arr[i][2-i];
                for (int j = 0; j < 3; j++) {
                    sumRow[i] += arr[i][j];
                    sumCol[i] += arr[j][i];
                }
            }
            if (sumRow[0] == 15 && sumRow[1] == 15 && sumRow[2] == 15 
                    && sumCol[0] == 15 && sumCol[1] == 15 && sumCol[2] == 15 
                    && sumDiagonal == 15 && sumAntiDiagonal == 15) {
                break;
            }
        }
        
        // 输出结果
        for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 3; j++) {
                System.out.print(arr[i][j] + " ");
            }
            System.out.println();
        }
    }
    
    // 生成随机数组
    public static int[][] generateRandomArray() {
        int[][] arr = new int[3][3];
        for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 3; j++) {
                arr[i][j] = (int)(Math.random() * 9) + 1;
            }
        }
        return arr;
    }
}