fly on exercises

data/3.Java高阶/3.Java异步任务/1.线程与进程/config.json

+{
+  "node_id": "java-5dcc74ab2617434f91ae6aa1ba0ac661",
+  "keywords": [],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/3.Java高阶/3.Java异步任务/1.线程与进程/thread.json

+{
+  "type": "code_options",
+  "author": "刘鑫",
+  "source": "thread.md",
+  "notebook_enable": false
+}
\ No newline at end of file

data/3.Java高阶/3.Java模块系统/1.exports子句/config.json

-{
-  "node_id": "java-b705d45009d84a609f9d8dd33935db31",
-  "keywords": [],
-  "children": [],
-  "export": [],
-  "title": "exports子句"
-}
\ No newline at end of file

data/3.Java高阶/3.Java模块系统/10.多模块项目/config.json

-{
-  "node_id": "java-da75bc8b6b0d471184961e44a5e4025f",
-  "keywords": [],
-  "children": [],
-  "export": [],
-  "title": "多模块项目"
-}
\ No newline at end of file

data/3.Java高阶/3.Java模块系统/11.编译及打包/config.json

-{
-  "node_id": "java-02891816ef1e4421abda7f2e2fa300ba",
-  "keywords": [],
-  "children": [],
-  "export": [],
-  "title": "编译及打包"
-}
\ No newline at end of file

data/3.Java高阶/3.Java模块系统/12.自动模块/config.json

-{
-  "node_id": "java-7a6f0097d06c47f180e1d8ede54722e7",
-  "keywords": [],
-  "children": [],
-  "export": [],
-  "title": "自动模块"
-}
\ No newline at end of file

data/3.Java高阶/3.Java模块系统/13.模块声明及子句/config.json

-{
-  "node_id": "java-91dc218d58244a70bbc610043cf8a597",
-  "keywords": [],
-  "children": [],
-  "export": [],
-  "title": "模块声明及子句"
-}
\ No newline at end of file

data/3.Java高阶/3.Java模块系统/2.requires子句/config.json

-{
-  "node_id": "java-6aca051fce684c6c838c281e1e35b0fc",
-  "keywords": [],
-  "children": [],
-  "export": [],
-  "title": "requires子句"
-}
\ No newline at end of file

data/3.Java高阶/3.Java模块系统/3.命名/config.json

-{
-  "node_id": "java-300060ee7a04460685a0f3a359555ad1",
-  "keywords": [],
-  "children": [],
-  "export": [],
-  "title": "命名"
-}
\ No newline at end of file

data/3.Java高阶/3.Java模块系统/4.requires/config.json

-{
-  "node_id": "java-ad66a2df96f248539164e359391e6e63",
-  "keywords": [],
-  "children": [],
-  "export": [],
-  "title": "requires"
-}
\ No newline at end of file

data/3.Java高阶/3.Java模块系统/5.exports/config.json

-{
-  "node_id": "java-46cbc0a256454505906afa98f3052cbb",
-  "keywords": [],
-  "children": [],
-  "export": [],
-  "title": "exports"
-}
\ No newline at end of file

data/3.Java高阶/3.Java模块系统/6.requires的传递/config.json

-{
-  "node_id": "java-bf2afd6975e6426884923be9ab6c5083",
-  "keywords": [],
-  "children": [],
-  "export": [],
-  "title": "requires的传递"
-}
\ No newline at end of file

data/3.Java高阶/3.Java模块系统/7.exports to/config.json

-{
-  "node_id": "java-c96aa563cbc84d5eaad4dbe8f025eaf4",
-  "keywords": [],
-  "children": [],
-  "export": [],
-  "title": "exports to"
-}
\ No newline at end of file

data/3.Java高阶/3.Java模块系统/8.open和opens/config.json

-{
-  "node_id": "java-9b28ed31512b49e7ad8fb99a3345a678",
-  "keywords": [],
-  "children": [],
-  "export": [],
-  "title": "open和opens"
-}
\ No newline at end of file

data/3.Java高阶/3.Java模块系统/9.uses和provides/config.json

-{
-  "node_id": "java-fb13f5492e4e4eed9d83aca71bd9a9c4",
-  "keywords": [],
-  "children": [],
-  "export": [],
-  "title": "uses和provides"
-}
\ No newline at end of file

data/3.Java高阶/3.Java模块系统/config.json

-{
-  "node_id": "java-81c079af472746fc838268974b43dc55",
-  "keywords": [],
-  "children": [
-    {
-      "创建Optional对象": {
-        "keywords": [],
-        "children": [],
-        "node_id": "java-ce389f8e462347a18a499278d53d51fd",
-        "title": "创建Optional对象"
-      }
-    },
-    {
-      "使用map从Optional对象中提取和转换值": {
-        "keywords": [],
-        "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
-        "title": "使用map从Optional对象中提取和转换值"
-      }
-    },
-    {
-      "使用flatMap链接Optional对象": {
-        "keywords": [],
-        "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
-        "title": "使用flatMap链接Optional对象"
-      }
-    },
-    {
-      "操纵由Optional对象构成的Stream": {
-        "keywords": [],
-        "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
-      }
-    },
-    {
-      "默认行为及解引用Optional对象": {
-        "keywords": [],
-        "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
-      }
-    },
-    {
-      "两个Optional对象的组合": {
-        "keywords": [],
-        "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
-      }
-    },
-    {
-      "使用filter剔除特定的值": {
-        "keywords": [],
-        "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
-      }
-    }
-  ],
-  "export": [],
-  "title": "Java模块系统"
-}
\ No newline at end of file

data/tree.json

@@ -4025,171 +4025,16 @@
                 ]
               }
             },
-            {
-              "Java模块系统": {
-                "node_id": "java-81c079af472746fc838268974b43dc55",
-                "keywords": [],
-                "children": [
-                  {
-                    "exports子句": {
-                      "node_id": "java-b705d45009d84a609f9d8dd33935db31",
-                      "keywords": [],
-                      "children": []
-                    }
-                  },
-                  {
-                    "requires子句": {
-                      "node_id": "java-6aca051fce684c6c838c281e1e35b0fc",
-                      "keywords": [],
-                      "children": []
-                    }
-                  },
-                  {
-                    "命名": {
-                      "node_id": "java-300060ee7a04460685a0f3a359555ad1",
-                      "keywords": [],
-                      "children": []
-                    }
-                  },
-                  {
-                    "requires": {
-                      "node_id": "java-ad66a2df96f248539164e359391e6e63",
-                      "keywords": [],
-                      "children": []
-                    }
-                  },
-                  {
-                    "exports": {
-                      "node_id": "java-46cbc0a256454505906afa98f3052cbb",
-                      "keywords": [],
-                      "children": []
-                    }
-                  },
-                  {
-                    "requires的传递": {
-                      "node_id": "java-bf2afd6975e6426884923be9ab6c5083",
-                      "keywords": [],
-                      "children": []
-                    }
-                  },
-                  {
-                    "exports to": {
-                      "node_id": "java-c96aa563cbc84d5eaad4dbe8f025eaf4",
-                      "keywords": [],
-                      "children": []
-                    }
-                  },
-                  {
-                    "open和opens": {
-                      "node_id": "java-9b28ed31512b49e7ad8fb99a3345a678",
-                      "keywords": [],
-                      "children": []
-                    }
-                  },
-                  {
-                    "uses和provides": {
-                      "node_id": "java-fb13f5492e4e4eed9d83aca71bd9a9c4",
-                      "keywords": [],
-                      "children": []
-                    }
-                  },
-                  {
-                    "多模块项目": {
-                      "node_id": "java-da75bc8b6b0d471184961e44a5e4025f",
-                      "keywords": [],
-                      "children": []
-                    }
-                  },
-                  {
-                    "编译及打包": {
-                      "node_id": "java-02891816ef1e4421abda7f2e2fa300ba",
-                      "keywords": [],
-                      "children": []
-                    }
-                  },
-                  {
-                    "自动模块": {
-                      "node_id": "java-7a6f0097d06c47f180e1d8ede54722e7",
-                      "keywords": [],
-                      "children": []
-                    }
-                  },
-                  {
-                    "模块声明及子句": {
-                      "node_id": "java-91dc218d58244a70bbc610043cf8a597",
-                      "keywords": [],
-                      "children": []
-                    }
-                  }
-                ]
-              }
-            },
             {
               "Java异步任务": {
                 "node_id": "java-267da81d131440de883b62376f5fc38b",
                 "keywords": [],
                 "children": [
                   {
-                    "为支持并发而不断演进的Java": {
-                      "node_id": "java-889e8043d080406fa4f505990615a20c",
+                    "线程与进程": {
+                      "node_id": "java-5dcc74ab2617434f91ae6aa1ba0ac661",
                       "keywords": [],
-                      "children": [
-                        {
-                          "其他的线程抽象：非嵌套方法调用": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "java-b0623f5f2fd04678aa56901d2eee493b",
-                            "title": "其他的线程抽象：非嵌套方法调用"
-                          }
-                        },
-                        {
-                          "你希望线程为你带来什么": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
-                            "title": "你希望线程为你带来什么"
-                          }
-                        }
-                      ]
-                    }
-                  },
-                  {
-                    "同步及异步API": {
-                      "node_id": "java-ea102b3f32754119b4d16bcce54743b2",
-                      "keywords": [],
-                      "children": [
-                        {
-                          "Future风格的API": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "java-2311732fd9034ba68ae16842da51192e",
-                            "title": "Future风格的API"
-                          }
-                        },
-                        {
-                          "反应式风格的API": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
-                            "title": "反应式风格的API"
-                          }
-                        },
-                        {
-                          "有害的睡眠及其他阻塞式操作": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
-                            "title": "有害的睡眠及其他阻塞式操作"
-                          }
-                        },
-                        {
-                          "如何使用异步API进行异常处理": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
-                          }
-                        }
-                      ]
+                      "children": []
                     }
                   },
                   {