利用增强for循环进行遍历

public class Demo05 {
    //二维数组
    public static void main(String[] args) {
        int[][] arrays = {{1,1,1,1},{45,8,9,7},{},{4,5,4,5},{4,9,8}};
        printArrays(arrays);
    }
    public static void printArrays(int[][] arrays){
        for (int[] array : arrays) {
            for (int i : array) {
                System.out.print(i + " ");
            }
            System.out.println();
        }
    }
}