public class Solution { /** * 判断岛屿数量 * @param grid char字符型二维数组 * @return int整型 */ public int solve (char[][] grid) { // write code here int count=0; for(int i=0;i<grid.length;i++){ for(int j=0;j<grid[0].length;j++){ if(grid[i][j]=='1'){ count++; dfs(grid,i,j); } } } return count; } private voi...