From 26de5c065311089bbc843af96a35062b2c6a4c74 Mon Sep 17 00:00:00 2001
From: Yornii <2571425925@qq.com>
Date: Tue, 4 Nov 2025 13:11:21 +0800
Subject: [PATCH] =?UTF-8?q?Update=200106.=E5=B2=9B=E5=B1=BF=E7=9A=84?=
 =?UTF-8?q?=E5=91=A8=E9=95=BF.md=20=E6=B7=BB=E5=8A=A0=E8=A7=A3=E6=B3=95?=
 =?UTF-8?q?=E4=BA=8C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Yornii <2571425925@qq.com>
---
 ...77\347\232\204\345\221\250\351\225\277.md" | 43 +++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git "a/problems/kamacoder/0106.\345\262\233\345\261\277\347\232\204\345\221\250\351\225\277.md" "b/problems/kamacoder/0106.\345\262\233\345\261\277\347\232\204\345\221\250\351\225\277.md"
index 3708715a4b..ef1e8d63ff 100644
--- "a/problems/kamacoder/0106.\345\262\233\345\261\277\347\232\204\345\221\250\351\225\277.md"
+++ "b/problems/kamacoder/0106.\345\262\233\345\261\277\347\232\204\345\221\250\351\225\277.md"
@@ -160,6 +160,7 @@ int main() {
 ## 其他语言版本
 
 ### Java
+解法一
 ```Java
 import java.util.*;
 
@@ -215,6 +216,48 @@ public class Main {
     }
 }
 ```
+解法二
+```java
+import java.util.Scanner;
+
+public class Main {
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+        int n = sc.nextInt();
+        int m = sc.nextInt();
+        
+        int[][] grid = new int[n][m];
+        for (int i = 0; i < n; i++) {
+            for (int j = 0; j < m; j++) {
+                grid[i][j] = sc.nextInt();
+            }
+        }
+        
+        int sum = 0;    // 陆地数量
+        int cover = 0;  // 相邻陆地对数（仅统计上边和左边）
+        
+        for (int i = 0; i < n; i++) {
+            for (int j = 0; j < m; j++) {
+                if (grid[i][j] == 1) {
+                    sum++; // 统计陆地总数
+                    // 检查上方是否有陆地
+                    if (i - 1 >= 0 && grid[i - 1][j] == 1) {
+                        cover++;
+                    }
+                    // 检查左方是否有陆地
+                    if (j - 1 >= 0 && grid[i][j - 1] == 1) {
+                        cover++;
+                    }
+                    // 不检查下方和右方，避免重复计算
+                }
+            }
+        }
+        
+        System.out.println(sum * 4 - cover * 2);
+        sc.close();
+    }
+}
+```
 
 ### Python