java基础口试
JDK下载安装及配置环境变量Java Downloads | Oraclehttps://csdnimg.cn/release/blog_editor_html/release2.3.6/ckeditor/plugins/CsdnLink/icons/icon-default.png?t=N7T8https://www.oracle.com/java/technologies/downloads/#java8-windowshttps://i-blog.csdnimg.cn/direct/143f4cafcd144421aecf14f92fc30d9d.png
https://i-blog.csdnimg.cn/direct/7157ff8056944e3aa314904b79700778.png
程序原始的编译和运行
https://i-blog.csdnimg.cn/direct/545cb6a31e2b4d49a47a6a013964cb4a.png
存储单位的换算
https://i-blog.csdnimg.cn/direct/190302f67391457ca0e99c82166d89c8.png
2/10/8/16进制间的换算
https://i-blog.csdnimg.cn/direct/cfba5281193246a3bcc0009d73b47d5b.png
https://i-blog.csdnimg.cn/direct/fbf697bee4694c44a9d660a4446a14fd.png
https://i-blog.csdnimg.cn/direct/89162aae8e7c4f19af3df51d18c8502a.png
八大基本数据范例
https://i-blog.csdnimg.cn/direct/223274f09baf48e683724f40a6c748d0.png
数据范例转换
https://i-blog.csdnimg.cn/direct/a304a50688674897be451277709a1dac.png
idea设置自动导包
https://i-blog.csdnimg.cn/direct/beb28bdf429440d6b8b385af5ba529b2.png
++、--与扩展运算符
https://i-blog.csdnimg.cn/direct/97fb34d0d0f94058b47afd20c5b1ab5c.png
https://i-blog.csdnimg.cn/direct/f47971f8590f4fe4aee158051e39b062.png
特殊的逻辑运算符
https://i-blog.csdnimg.cn/direct/4e86e43ae5a548a1bd8217067c277394.png
switch控制语句
https://i-blog.csdnimg.cn/direct/ff09dbf0a17c43138aaa5ecb762a3317.png
https://i-blog.csdnimg.cn/direct/1824f11056694f0da5b11936837c96f6.png
https://i-blog.csdnimg.cn/direct/eb19635797bd429a9da68abe06dbea00.png
break与continue
https://i-blog.csdnimg.cn/direct/4ac06348d1b04787b786fafc2d4b758f.png
数组
https://i-blog.csdnimg.cn/direct/43711c06eaf24a2c86832a89f1f425e9.png
https://i-blog.csdnimg.cn/direct/930afbcd784d4961b386edecdb965299.png
https://i-blog.csdnimg.cn/direct/cfdb101a0d0e415e909e79d2382089ee.png
https://i-blog.csdnimg.cn/direct/20842b319cd84dc383bfcf5ca386b5e4.png
构造器
https://i-blog.csdnimg.cn/direct/063231b0825d45669997aa06f85b4d89.png
static关键字
https://i-blog.csdnimg.cn/direct/b6199f9d78b7470ab60e63e6e3b9bed2.png
https://i-blog.csdnimg.cn/direct/ec8d062469c346a48f9c48de922996ba.png
https://i-blog.csdnimg.cn/direct/13cd65e6ffdf43e49cd6586701668ec8.png
修饰符
https://i-blog.csdnimg.cn/direct/ae1f167127764a1bb274d1ab86035b5e.png
继续
https://i-blog.csdnimg.cn/direct/c58a0f2140524342be29aeebbea26162.png
https://i-blog.csdnimg.cn/direct/45cb12be80674779b22741ee14f8f367.png
https://i-blog.csdnimg.cn/direct/b27a1dd7aa024aceab3523901197a712.png
https://i-blog.csdnimg.cn/direct/cd4d9258b96644ee9a7312860b098ec7.png
https://i-blog.csdnimg.cn/direct/400e40d1495046bb9714c72cd4a87bb9.png
https://i-blog.csdnimg.cn/direct/f7b39a9c395e48b0b1d937626f4624a3.png
重写
两同一大两小
https://i-blog.csdnimg.cn/direct/3dddf50730874cefb832b7f251c7077f.png
多态
https://i-blog.csdnimg.cn/direct/baeaadf164274a2eaeb714030363080b.png
https://i-blog.csdnimg.cn/direct/e12a9ac569194b3fa6ee36208c3d4705.png
https://i-blog.csdnimg.cn/direct/7aac3cfcca9049d89f5c64666989b7b2.png
https://i-blog.csdnimg.cn/direct/9a0dbea9c38d4a819c516105df79c270.png
设置启用注解
https://i-blog.csdnimg.cn/direct/d3de19a21f5b4b85878991905c2ca0e0.png
https://i-blog.csdnimg.cn/direct/d0fa5b7347f64bdd8be559ecf74999e8.png
常量
https://i-blog.csdnimg.cn/direct/3190b9be59a84115901edd159afaa675.png
单例模式
https://i-blog.csdnimg.cn/direct/13d71b0bdeb440e596acea336d90f3d5.png
https://i-blog.csdnimg.cn/direct/15af24db763f4646b21dfea7a288b80f.png
枚举类
https://i-blog.csdnimg.cn/direct/1998958f67374d399d34075a733122df.png
https://i-blog.csdnimg.cn/direct/f87ecf27394d41a9aad4af6835fbdc54.png
https://i-blog.csdnimg.cn/direct/7258b26f3a1d4120abc1caa57e5244cc.png
作用:
https://i-blog.csdnimg.cn/direct/9910a6cceb954c48a3e419c3263d375a.png
抽象类
https://i-blog.csdnimg.cn/direct/8dd31a8bb0034b889b10900e34e2c0bc.png
https://i-blog.csdnimg.cn/direct/c7ae578a44c54ea88ea1fee9b103e48d.png
模板设计模式
https://i-blog.csdnimg.cn/direct/25599c039eaf4bbd8b28a76b4910b6ff.png
https://i-blog.csdnimg.cn/direct/c925af8e9cb04c35996736fddb520a99.png
接口
https://i-blog.csdnimg.cn/direct/27d8781c0d34409686a79c53e87b5602.png
https://i-blog.csdnimg.cn/direct/6a33f899b2414981b799d3b047534a7b.png
https://i-blog.csdnimg.cn/direct/67d96bc18c814fb8877aedfcdb48a51d.png
https://i-blog.csdnimg.cn/direct/0d54322ad6a84426893a2dba3d72651d.png
接口和抽象类的区别
https://i-blog.csdnimg.cn/direct/fe8c0701810546369679f03cd0998188.png
代码块
https://i-blog.csdnimg.cn/direct/59c6e36837a64b12b4e70f4bd4e7e381.png
内部类
https://i-blog.csdnimg.cn/direct/c5c0a3759d144883ac4074b6aa7a0213.png
https://i-blog.csdnimg.cn/direct/604e358ddf2d4c1586bd3e7f038b7cf8.png
https://i-blog.csdnimg.cn/direct/833d3d84278a48a08daefa1ee22eb91a.png
https://i-blog.csdnimg.cn/direct/816da241403e48c8a912684142266dcf.png
https://i-blog.csdnimg.cn/direct/9ea4cbccadbd4f2e84b1455ee38241a3.png
https://i-blog.csdnimg.cn/direct/f975558127064966bf6d00b4faad94ef.png
函数式编程
https://i-blog.csdnimg.cn/direct/35450e8ba5154e6d8d4446e6fad9e0bd.png
https://i-blog.csdnimg.cn/direct/7b0d6a327c6c420981f724f4ffe9eedb.png
https://i-blog.csdnimg.cn/direct/0bffdbd8264146b19167da1e5bf77ec3.png
https://i-blog.csdnimg.cn/direct/ee167e67552147bc81f1bef6359e0474.png
https://i-blog.csdnimg.cn/direct/49c608e0049f4729b641b2048107cb6f.png
https://i-blog.csdnimg.cn/direct/e410775b1d7a4f67b32f746063432ce4.png
https://i-blog.csdnimg.cn/direct/383c5c72f1d041e18cfd537b88236c3c.png
https://i-blog.csdnimg.cn/direct/eda19070f1fa44a5a4b34c91dc7c8d85.png
https://i-blog.csdnimg.cn/direct/9bcf8e1696bc4237a85fc74721f12ed7.png
https://i-blog.csdnimg.cn/direct/a9d541562ab44a63a1c4e0e10e5f5845.png
Comparator比力规则
https://i-blog.csdnimg.cn/direct/c72793d70a634a4c956a5989ddc27625.png
String
https://i-blog.csdnimg.cn/direct/0e2018474f99426f826ce863034cd5d2.png
https://i-blog.csdnimg.cn/direct/27e049b386c441778adc4936639d9e6c.png
https://i-blog.csdnimg.cn/direct/12f1e1d696cd46938e4f42a3b371bad8.png
https://i-blog.csdnimg.cn/direct/fa0c2b2b5b574ee1ac7bac20b5fff519.png
异常
https://i-blog.csdnimg.cn/direct/a9de7c62d615456aa79f756c4c54bc29.png
https://i-blog.csdnimg.cn/direct/b73a245cd92341deba350d5e04bc050d.png
https://i-blog.csdnimg.cn/direct/ceb00822300b4599b19628d3835c7114.png
https://i-blog.csdnimg.cn/direct/2973c1b403864a7dbd1ddd22d9685905.png
泛型
https://i-blog.csdnimg.cn/direct/a93ee5470e77477582773a8d891e3b01.png
泛型类
https://i-blog.csdnimg.cn/direct/435c103e87624a89b5bb2d62f517aabe.png
https://i-blog.csdnimg.cn/direct/fc73c2d72b1c4102903edfe55b0723cb.png
泛型接口
https://i-blog.csdnimg.cn/direct/77882c604a964544b7faf828a68b3865.png
https://i-blog.csdnimg.cn/direct/0c44dee0ce464379b396ae47d0d744bf.png
泛型方法
https://i-blog.csdnimg.cn/direct/416e7b1c53ed46668acc3b5d9df3e7ee.png
https://i-blog.csdnimg.cn/direct/f3c0c4cc4b7c44c28a27ad3090957df5.png
通配符及上下限
https://i-blog.csdnimg.cn/direct/93f40676ba294dff8e37138ea2ffc310.png
https://i-blog.csdnimg.cn/direct/79b65b0dfcd640528b0363f27338575f.png
支持的范例及valueOf()与new包装类的区别
https://i-blog.csdnimg.cn/direct/d7661f75245a438ab6a5691ac81427b9.png
https://i-blog.csdnimg.cn/direct/bb35b4fae22048ab899de66f3c73a706.png
包装类字符串与基本范例的转化
https://i-blog.csdnimg.cn/direct/3944eef5be92468e91026757827b639e.png
集合Collection
https://i-blog.csdnimg.cn/direct/78860ed60c554a029e4b317680dc5428.png
https://i-blog.csdnimg.cn/direct/aeeeabfb78294d929924d411ae013dca.png
https://i-blog.csdnimg.cn/direct/7f5490ea722e43a6bada1252c7d2d178.png
collection遍历
https://i-blog.csdnimg.cn/direct/f27c15eec19545cb83063a1619957cba.png
https://i-blog.csdnimg.cn/direct/3f58c42a03e64e808a7991b00d049b4c.png
https://i-blog.csdnimg.cn/direct/838725a99919484f9cc9164b3695afab.png遍历带来的并发修改异常问题
https://i-blog.csdnimg.cn/direct/c308842ff7c540929b1508a099791883.png
https://i-blog.csdnimg.cn/direct/ab7cdfe7b09448019199f97cc3e490b4.png
https://i-blog.csdnimg.cn/direct/e5c0bddbfc2e4ccf96cd4916fe80c38e.png
https://i-blog.csdnimg.cn/direct/024b2e1d03154119af65a1b139b17909.png
https://i-blog.csdnimg.cn/direct/f3131c57ce764212bb685d4777e99b18.png
List
https://i-blog.csdnimg.cn/direct/fe3bacfd0d2646909626fb97425d65b5.png
https://i-blog.csdnimg.cn/direct/f5c1e0657d8344ffa2e233936527d36f.png
ArrayList创建对象时,数组长度为0,
添加元素时,初始数组长度为10;
当数组长度装满时,必要扩容时按照1.5倍扩容
https://i-blog.csdnimg.cn/direct/ed223e681ff94cb490b7136ee0937403.png
https://i-blog.csdnimg.cn/direct/267b484c93c746d690a5247a453f429c.png
Set
https://i-blog.csdnimg.cn/direct/d5a9ab7f21984e80a62de5896e56f805.png
HashSet
https://i-blog.csdnimg.cn/direct/7d1dc7ae78a34bb796be854ccc71e4c8.png
https://i-blog.csdnimg.cn/direct/20cc09acd91246f4879dd2ec8102d710.png
https://i-blog.csdnimg.cn/direct/c02abddbea4d433a806ec1da217f4491.png
二叉树
https://i-blog.csdnimg.cn/direct/ead492ff651247b5b87a0154617ba858.png
https://i-blog.csdnimg.cn/direct/900b71ef3cf9472489918a57b439e4a9.png
https://i-blog.csdnimg.cn/direct/4d61ca0305f44c0b92a4be07c16409ca.png
LinkedHashset
https://i-blog.csdnimg.cn/direct/03a4135337cc489eb8b45fee4e67254d.png
https://i-blog.csdnimg.cn/direct/f1357976808d40fcb477cff0e52cee07.png
TreeSet
https://i-blog.csdnimg.cn/direct/2367ea762508422db6f92e617476e872.png
应用范例存入TreeSet集合自定义排序
1、对象类实现一个Comparable比力接口，重写compareTo方法，指定大小比力规则
https://i-blog.csdnimg.cn/direct/acf7c385f9c84c9fb2c3d81fc9d232e5.png
2、public TreeSet(Comparator c)集合自带比力器Comparator对象，指定比力规则
https://i-blog.csdnimg.cn/direct/1c33012cf19847f1b7e371fdc457fb97.png
Map
https://i-blog.csdnimg.cn/direct/d374350dc24b42acad42fcc3c18b2684.png
https://i-blog.csdnimg.cn/direct/54f3e70bcec743dc87aadae390ca4863.png
https://i-blog.csdnimg.cn/direct/0ee9f67fda8c4aa3ae3ac6682a753c03.png
https://i-blog.csdnimg.cn/direct/1de98afdda574acaa883aa13e9bf3e27.png
Map遍历
https://i-blog.csdnimg.cn/direct/36ab847b9c3e46ba89f4918a72ec0124.png
https://i-blog.csdnimg.cn/direct/6660a28d3d964239acc8ebe3b560898e.png
https://i-blog.csdnimg.cn/direct/84c9461a030343d183221badcf92231e.png
https://i-blog.csdnimg.cn/direct/072b26c15d8148179b1f913ff811e945.png
Stream流
https://i-blog.csdnimg.cn/direct/fa48a9c0de53449c831debfae5849718.png
获取流的方式
https://i-blog.csdnimg.cn/direct/4bfc826123ec439791b9bc3d93c7a378.png
https://i-blog.csdnimg.cn/direct/38981934c1e148ada6876b99892b692b.png
Stream流的常用方法
https://i-blog.csdnimg.cn/direct/0f1d0b15ee8c47ab9782cff25d391b42.png
Stream流的闭幕方法
https://i-blog.csdnimg.cn/direct/e1dd6c9260ac439f95ff981b6cb261b0.png
https://i-blog.csdnimg.cn/direct/552e9006a803468f8f11261a23a990f4.png
可变参数
https://i-blog.csdnimg.cn/direct/a80d82f1ede94ab895f457bf52ec4906.png
字符集
https://i-blog.csdnimg.cn/direct/2f5409c1d69d46e199d02ac5456d584c.png
https://i-blog.csdnimg.cn/direct/b12b63ac70e34e31a5f8d9c737b3d175.png
https://i-blog.csdnimg.cn/direct/427cd12ad4d94a26a30823a027c347d3.png
IO流
https://i-blog.csdnimg.cn/direct/894c67fe2c0e41fe9659aaa218c61df7.png
https://i-blog.csdnimg.cn/direct/c66c79006fe4416982625a8034f13602.png
https://i-blog.csdnimg.cn/direct/36ff6f7b832c410d890b22c285a8f30e.png
https://i-blog.csdnimg.cn/direct/6f3b8929b1e14d77857c360765f0b668.png
https://i-blog.csdnimg.cn/direct/2355f4f22d3444d29407d9ed4e1b0f4a.png
https://i-blog.csdnimg.cn/direct/b6297ff1dd70491fa2e98d208f617eb4.png
https://i-blog.csdnimg.cn/direct/31f6682246264981b16867c0f771c577.png
https://i-blog.csdnimg.cn/direct/6944b48d076641bab3b55bc58af8fbe8.png
https://i-blog.csdnimg.cn/direct/13a6e0d2f6f947728df73d36cc23b923.png
https://i-blog.csdnimg.cn/direct/317cd91ebde649c4940dea03269e4546.png
资源开释方案
https://i-blog.csdnimg.cn/direct/c5aba61ab3584676bca4aae59e973525.png
保举使用:
https://i-blog.csdnimg.cn/direct/992cce2fd6ff4b70a8ff42b40d95b4f1.png
https://i-blog.csdnimg.cn/direct/b427f66474af4070ad9756364a7fb271.png
线程
https://i-blog.csdnimg.cn/direct/f9129f78fda0424495e05e6a91157109.png
https://i-blog.csdnimg.cn/direct/030456dc7ba84e3fb25d5b27e814b9bc.png
https://i-blog.csdnimg.cn/direct/a2d9a4ee04bb40bcb7119da0fff910ba.png
https://i-blog.csdnimg.cn/direct/f7e8e40920014526a649e27aa4499e74.png
https://i-blog.csdnimg.cn/direct/e8c70096121044c5800af220a1dcabc2.png
https://i-blog.csdnimg.cn/direct/f2c721dd302c4283852412cd1b9ebf0e.png
https://i-blog.csdnimg.cn/direct/256aa7c388dd4ba5ba55159e1f0c2202.png
https://i-blog.csdnimg.cn/direct/aaa7bde660784af7a221ef7526e39d93.png
免责声明：如果侵犯了您的权益，请联系站长，我们会及时删除侵权内容，谢谢合作！更多信息从访问主页：qidao123.com:ToB企服之家，中国第一个企服评测及商务社交产业平台。
页:
[1]