foreach循环遍历二维数组

public  class array {
    public static void main(String[] args) {
        int[][] arr = {
  {3,4,5},{1,2,3,4,5},{7,8,9}};
        for(int[] i : arr){
            for(int j : i){
                System.out.print(j);
            }
            System.out.println();
        }



    }
}