嗨我想尝试根据用户输入自动填充二维数组。 用户将输入1个数字，此数字将设置2d数组的大小。 然后我想打印出数组的数字。 例如，如果用户输入数字4。 2d数组将是4行乘4列，并且应包含数字1到16，并打印如下。
1-2-3-4 5-6-7-8 9-10-11-12 13-14-15-16但我正在努力思考能够做到这一点的正确陈述。 目前我的代码只打印出一个包含*的2d数组。
谁有任何想法如何打印出数字，我真的卡住了。 我的代码如下：
public static void main(String args[]){ Scanner input = new Scanner(System.in); System.out.println("Enter room length"); int num1 = input.nextInt(); int num2 = num1; int length = num1 * num2; System.out.println("room "+num1+"x"+num2+"="+length); int[][] grid = new int[num1][num2]; for(int row=0;row<grid.length;row++){ for(int col=0;col<grid[row].length;col++){ System.out.print("*"); } System.out.println(); } }Hi i am trying to auto populate a 2d array based on user input. The user will enter 1 number, this number will set the size of the 2d array. i then want to print out the numbers of the array. for example , if the user enters the number 4 . the 2d array will be 4 rows by 4 colums, and should contain the number 1 to 16, and print out as follows.
1-2-3-4 5-6-7-8 9-10-11-12 13-14-15-16But i am struggling to think of the right statement that will do this. for the moment my code just prints out a 2d array containing *.
Has anyone any ideas how i could print out the numbers , i'm really stuck. my code follows:
public static void main(String args[]){ Scanner input = new Scanner(System.in); System.out.println("Enter room length"); int num1 = input.nextInt(); int num2 = num1; int length = num1 * num2; System.out.println("room "+num1+"x"+num2+"="+length); int[][] grid = new int[num1][num2]; for(int row=0;row<grid.length;row++){ for(int col=0;col<grid[row].length;col++){ System.out.print("*"); } System.out.println(); } }最满意答案
读n值，
int[][] arr = new int[n][n]; int inc=1; for(int i=0;i<n;i++) for(int j=0;j<n;j++) { arr[i][j]=inc; inc++; }Read n value,
int[][] arr = new int[n][n]; int inc=1; for(int i=0;i<n;i++) for(int j=0;j<n;j++) { arr[i][j]=inc; inc++; }更多推荐
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