在Java中，在方阵的上半部分进行对角循环？

public class DiagonalLoop {

    public static void main(String[] args) {
        int[][] matrix = {
                {1, 2, 3},
                {4, 5, 6},
                {7, 8, 9}
        };
        
        int size = matrix.length;
        
        // 上半部分对角线循环
        for (int i = 0; i < size; i++) {
            for (int j = 0; j < size - i; j++) {
                int value = matrix[i][j];
                System.out.print(value + " ");
            }
            System.out.println();
        }
    }
}