diff --git a/problems/0583.两个字符串的删除操作.md b/problems/0583.两个字符串的删除操作.md
index 36c175c3..fd80853e 100644
--- a/problems/0583.两个字符串的删除操作.md
+++ b/problems/0583.两个字符串的删除操作.md
@@ -128,6 +128,28 @@ public:
 
 Java：
 ```java
+// dp数组中存储word1和word2最长相同子序列的长度
+class Solution {
+    public int minDistance(String word1, String word2) {
+        int len1 = word1.length();
+        int len2 = word2.length();
+        int[][] dp = new int[len1 + 1][len2 + 1];
+
+        for (int i = 1; i <= len1; i++) {
+            for (int j = 1; j <= len2; j++) {
+                if (word1.charAt(i - 1) == word2.charAt(j - 1)) {
+                    dp[i][j] = dp[i - 1][j - 1] + 1;
+                } else {
+                    dp[i][j] = Math.max(dp[i - 1][j], dp[i][j - 1]);
+                }
+            }
+        }
+
+        return len1 + len2 - dp[len1][len2] * 2;
+    }
+}
+
+// dp数组中存储需要删除的字符个数
 class Solution {
     public int minDistance(String word1, String word2) {
         int[][] dp = new int[word1.length() + 1][word2.length() + 1];