diff --git a/backend/.prettierrc b/backend/.prettierrc
new file mode 100644
index 000000000..981186770
--- /dev/null
+++ b/backend/.prettierrc
@@ -0,0 +1,3 @@
+{
+  "plugins": ["prettier-plugin-java"]
+}
diff --git a/package-lock.json b/package-lock.json
index 70203506e..8e61c30e1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,9 +11,54 @@
       "devDependencies": {
         "husky": "^9.1.7",
         "lint-staged": "^16.1.5",
-        "prettier": "^3.6.2"
+        "prettier": "^3.6.2",
+        "prettier-plugin-java": "^2.6.3"
       }
     },
+    "node_modules/@chevrotain/cst-dts-gen": {
+      "version": "11.0.3",
+      "resolved": "https://registry.npmjs.org/@chevrotain/cst-dts-gen/-/cst-dts-gen-11.0.3.tgz",
+      "integrity": "sha512-BvIKpRLeS/8UbfxXxgC33xOumsacaeCKAjAeLyOn7Pcp95HiRbrpl14S+9vaZLolnbssPIUuiUd8IvgkRyt6NQ==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@chevrotain/gast": "11.0.3",
+        "@chevrotain/types": "11.0.3",
+        "lodash-es": "4.17.21"
+      }
+    },
+    "node_modules/@chevrotain/gast": {
+      "version": "11.0.3",
+      "resolved": "https://registry.npmjs.org/@chevrotain/gast/-/gast-11.0.3.tgz",
+      "integrity": "sha512-+qNfcoNk70PyS/uxmj3li5NiECO+2YKZZQMbmjTqRI3Qchu8Hig/Q9vgkHpI3alNjr7M+a2St5pw5w5F6NL5/Q==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@chevrotain/types": "11.0.3",
+        "lodash-es": "4.17.21"
+      }
+    },
+    "node_modules/@chevrotain/regexp-to-ast": {
+      "version": "11.0.3",
+      "resolved": "https://registry.npmjs.org/@chevrotain/regexp-to-ast/-/regexp-to-ast-11.0.3.tgz",
+      "integrity": "sha512-1fMHaBZxLFvWI067AVbGJav1eRY7N8DDvYCTwGBiE/ytKBgP8azTdgyrKyWZ9Mfh09eHWb5PgTSO8wi7U824RA==",
+      "dev": true,
+      "license": "Apache-2.0"
+    },
+    "node_modules/@chevrotain/types": {
+      "version": "11.0.3",
+      "resolved": "https://registry.npmjs.org/@chevrotain/types/-/types-11.0.3.tgz",
+      "integrity": "sha512-gsiM3G8b58kZC2HaWR50gu6Y1440cHiJ+i3JUvcp/35JchYejb2+5MVeJK0iKThYpAa/P2PYFV4hoi44HD+aHQ==",
+      "dev": true,
+      "license": "Apache-2.0"
+    },
+    "node_modules/@chevrotain/utils": {
+      "version": "11.0.3",
+      "resolved": "https://registry.npmjs.org/@chevrotain/utils/-/utils-11.0.3.tgz",
+      "integrity": "sha512-YslZMgtJUyuMbZ+aKvfF3x1f5liK4mWNxghFRv7jqRR9C3R3fAOGTTKvxXDa2Y1s9zSbcpuO0cAxDYsc9SrXoQ==",
+      "dev": true,
+      "license": "Apache-2.0"
+    },
     "node_modules/ansi-escapes": {
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-7.0.0.tgz",
@@ -82,6 +127,34 @@
         "url": "https://github.com/chalk/chalk?sponsor=1"
       }
     },
+    "node_modules/chevrotain": {
+      "version": "11.0.3",
+      "resolved": "https://registry.npmjs.org/chevrotain/-/chevrotain-11.0.3.tgz",
+      "integrity": "sha512-ci2iJH6LeIkvP9eJW6gpueU8cnZhv85ELY8w8WiFtNjMHA5ad6pQLaJo9mEly/9qUyCpvqX8/POVUTf18/HFdw==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@chevrotain/cst-dts-gen": "11.0.3",
+        "@chevrotain/gast": "11.0.3",
+        "@chevrotain/regexp-to-ast": "11.0.3",
+        "@chevrotain/types": "11.0.3",
+        "@chevrotain/utils": "11.0.3",
+        "lodash-es": "4.17.21"
+      }
+    },
+    "node_modules/chevrotain-allstar": {
+      "version": "0.3.1",
+      "resolved": "https://registry.npmjs.org/chevrotain-allstar/-/chevrotain-allstar-0.3.1.tgz",
+      "integrity": "sha512-b7g+y9A0v4mxCW1qUhf3BSVPg+/NvGErk/dOkrDaHA0nQIQGAtrOjlX//9OQtRlSCy+x9rfB5N8yC71lH1nvMw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "lodash-es": "^4.17.21"
+      },
+      "peerDependencies": {
+        "chevrotain": "^11.0.0"
+      }
+    },
     "node_modules/cli-cursor": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/cli-cursor/-/cli-cursor-5.0.0.tgz",
@@ -242,6 +315,18 @@
         "node": ">=0.12.0"
       }
     },
+    "node_modules/java-parser": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/java-parser/-/java-parser-3.0.1.tgz",
+      "integrity": "sha512-sDIR7u9b7O2JViNUxiZRhnRz7URII/eE7g2B+BmGxDeS6Ex3OYAcCyz5oh0H4LQ+hL/BS8OJTz8apMy9xtGmrQ==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "chevrotain": "11.0.3",
+        "chevrotain-allstar": "0.3.1",
+        "lodash": "4.17.21"
+      }
+    },
     "node_modules/lilconfig": {
       "version": "3.1.3",
       "resolved": "https://registry.npmjs.org/lilconfig/-/lilconfig-3.1.3.tgz",
@@ -301,6 +386,20 @@
         "node": ">=20.0.0"
       }
     },
+    "node_modules/lodash": {
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/lodash-es": {
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash-es/-/lodash-es-4.17.21.tgz",
+      "integrity": "sha512-mKnC+QJ9pWVzv+C4/U3rRsHapFfHvQFoFB92e52xeyGMcX6/OlIl78je1u8vePzYZSkkogMPJ2yjxxsb89cxyw==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/log-update": {
       "version": "6.1.0",
       "resolved": "https://registry.npmjs.org/log-update/-/log-update-6.1.0.tgz",
@@ -459,6 +558,19 @@
         "url": "https://github.com/prettier/prettier?sponsor=1"
       }
     },
+    "node_modules/prettier-plugin-java": {
+      "version": "2.7.5",
+      "resolved": "https://registry.npmjs.org/prettier-plugin-java/-/prettier-plugin-java-2.7.5.tgz",
+      "integrity": "sha512-LH5PKX+cjKOcjnnLXn3/cT8u7vxXxm68r5zsBPI3QQfkfyA/Sx8TTnhbwZdqwQXca431RquBG2ZtmyqmBwBKEw==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "java-parser": "3.0.1"
+      },
+      "peerDependencies": {
+        "prettier": "^3.0.0"
+      }
+    },
     "node_modules/restore-cursor": {
       "version": "5.1.0",
       "resolved": "https://registry.npmjs.org/restore-cursor/-/restore-cursor-5.1.0.tgz",
diff --git a/package.json b/package.json
index 1a2fd58a8..c0e6339d9 100644
--- a/package.json
+++ b/package.json
@@ -20,9 +20,11 @@
   "devDependencies": {
     "husky": "^9.1.7",
     "lint-staged": "^16.1.5",
-    "prettier": "^3.6.2"
+    "prettier": "^3.6.2",
+    "prettier-plugin-java": "^2.6.3"
   },
   "lint-staged": {
-    "frontend_nuxt/**/*": "prettier --write --cache --ignore-unknown"
+    "frontend_nuxt/**/*": "prettier --write --cache --ignore-unknown",
+    "backend/src/**/*.java": "prettier --write --cache --ignore-unknown"
   }
 }
\ No newline at end of file