public static void main(String[] args) { Demo05 hellDemo05 = new Demo05(); int[][] nums = hellDemo05.getArray(4, 5); System.out.println(Arrays.toString(nums)); } public int[][] getArray(int lengthA,int lengthB){ int[][] nums = new int[lengthA][lengthB]; //for循环遍历数组 for (int i = 0; i <lengthA; i++) { for (int j = 0; j <lengthB; j++) { //随机生成数 nums[i][j] = (int)(Math.random()*100); System.out.println(); } } return nums; }}
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