Java实现九宫格的简单实例

public class NineTable {  public static void main(String[] args) {    int arr[][] = new int[3][3];    int a = 2;    int b = 3 / 2;    for (int i = 1; i <= 9; i++) {      arr[a++][b++] = i;      if (0 == i % 3) {        a = a - 2;        b = b - 1;      }      else {        a = a % 3;        b = b % 3;      }    }    System.out.println("output:");    for (int i = 0; i < 3; i++) {      for (int j = 0; j < 3; j++) {        System.out.print(arr[i][j] + " ");      }      System.out.print("/n");    }  }}

$javac NineTable.java$java NineTableoutput:4 9 2 3 5 7 8 1 6