荣耀彩票代理

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JAVA入门小白必看基础理论知识详记

作者:wy  发布日期:2019-01-12 08:38:00
  •   如果你是刚刚入门JAVA的朋友那么你一定要看这篇文章,如果你不是刚刚入门但是一直搞不懂JAVA的原理那么你还是一定要看这篇文章,这篇文章就是JAVA的入门篇必学章节。

    荣耀彩票代理  JavaSUOYOUDEZUCHENGBUFENDOUXUYAOMINGZI。LEIMING、BIANLIANGMINGYIJIFANGFAMINGDOUBEICHENGWEIBIAOSHIFU。

    荣耀彩票代理  GUANYUJavaBIAOSHIFU,YOUYIXIAJIDIANXUYAOZHUYI:

      SUOYOUDEBIAOSHIFUDOUYINGGAIYIZIMU(A-ZHUOZHEa-z),MEIYUANFU($)、HUOZHEXIAHUAXIAN(_)KAISHI

      SHOUZIFUZHIHOUKEYISHIRENHEZIFUDEZUHE

      GUANJIANZIBUNENGYONGZUOBIAOSHIFU

      BIAOSHIFUSHIDAXIAOXIEMINGANDE

    荣耀彩票代理  HEFABIAOSHIFUJULI:age、$salary、_value、__1_value

      FEIFABIAOSHIFUJULI:123abc、-salary

      JavaXIUSHIFU

      JavaYUYANTIGONGLEHENDUOXIUSHIFU,ZHUYAOFENWEIYIXIALIANGLEI

      FANGWENXIUSHIFU

      XIUSHIFUYONGLAIDINGYILEI、FANGFAHUOZHEBIANLIANG,TONGCHANGFANGZAIYUJUDEZUIQIANDUAN。WOMENTONGGUOXIAMIANDELIZILAISHUOMING:

    荣耀彩票代理  public class className {

      // ...

      }

      private boolean myFlag;

      static final double weeks = 9.5;

    荣耀彩票代理  protected static final int BOXWIDTH = 42;

    荣耀彩票代理  public static void main(String[] arguments) {

      // FANGFATI

      }

      FANGWENKONGZHIXIUSHIFU

      JavaZHONG,KEYISHIYONGFANGWENKONGZHIFULAIBAOHUDUILEI、BIANLIANG、FANGFAHEGOUZAOFANGFADEFANGWEN。JavaZHICHI4ZHONGBUTONGDEFANGWENQUANXIAN。

      1、MORENDE,YECHENGWEIdefault,ZAITONGYIBAONEIKEJIAN,BUSHIYONGRENHEXIUSHIFU。

    荣耀彩票代理  SHIYONGMORENFANGWENXIUSHIFUSHENGMINGDEBIANLIANGHEFANGFA,DUITONGYIGEBAONEIDELEISHIKEJIANDE。JIEKOULIDEBIANLIANGDOUYINSHISHENGMINGWEIpublic static final,ERJIEKOULIDEFANGFAMORENQINGKUANGXIAFANGWENQUANXIANWEIpublic。

    荣耀彩票代理  2、SIYOUDE,YIprivateXIUSHIFUZHIDING,ZAITONGYILEINEIKEJIAN。

    荣耀彩票代理  SIYOUFANGWENXIUSHIFUSHIZUIYANGEDEFANGWENJIBIE,SUOYIBEISHENGMINGWEIprivateDEFANGFA、BIANLIANGHEGOUZAOFANGFAZHINENGBEISUOSHULEIFANGWEN,BINGQIELEIHEJIEKOUBUNENGSHENGMINGWEIprivate。

    荣耀彩票代理  3、GONGYOUDE,YIpublicXIUSHIFUZHIDING,DUISUOYOULEIKEJIAN。

      BEISHENGMINGWEIpublicDELEI、FANGFA、GOUZAOFANGFAHEJIEKOUNENGGOUBEIRENHEQITALEIFANGWEN。RUGUOJIGEXIANGHUFANGWENDEpublicLEIFENBUZAIBUYONGDEBAOZHONG,ZEXUYAODAORUXIANGYINGpublicLEISUOZAIDEBAO。YOUYULEIDEJICHENGXING,LEISUOYOUDEGONGYOUFANGFAHEBIANLIANGDOUNENGBEIQIZILEIJICHENG。

    荣耀彩票代理  4、SHOUBAOHUDE,YIprotectedXIUSHIFUZHIDING,DUITONGYIBAONEIDELEIHESUOYOUZILEIKEJIAN。

      BEISHENGMINGWEIprotectedDEBIANLIANG、FANGFAHEGOUZAOQINENGBEITONGYIGEBAOZHONGDERENHEQITALEIFANGWEN,YENENGGOUBEIBUTONGBAOZHONGDEZILEIFANGWEN。ProtectedFANGWENXIUSHIFUBUNENGXIUSHILEIHEJIEKOU,FANGFAHECHENGYUANBIANLIANGNENGGOUSHENGMINGWEIprotected,DANSHIJIEKOUDECHENGYUANBIANLIANGHECHENGYUANFANGFABUNENGSHENGMINGWEIprotected。ZILEINENGFANGWENProtectedXIUSHIFUSHENGMINGDEFANGFAHEBIANLIANG,ZHEIYANGJIUNENGBAOHUBUXIANGGUANDELEISHIYONGZHEIXIEFANGFAHEBIANLIANG。

      QINGZHUYIYIXIAFANGFAJICHENGDEGUIZE:

      FULEIZHONGSHENGMINGWEIpublicDEFANGFAZAIZILEIZHONGYEBIXUWEIpublic。

    荣耀彩票代理  FULEIZHONGSHENGMINGWEIprotectedDEFANGFAZAIZILEIZHONGYAOMESHENGMINGWEIprotected,YAOMESHENGMINGWEIpublic。BUNENGSHENGMINGWEIprivate。

      FULEIZHONGMORENXIUSHIFUSHENGMINGDEFANGFA,NENGGOUZAIZILEIZHONGSHENGMINGWEIprivate。

      FULEIZHONGSHENGMINGWEIprivateDEFANGFA,BUNENGGOUBEIJICHENG。

      FEIFANGWENXIUSHIFU

    荣耀彩票代理  StaticXIUSHIFU

    荣耀彩票代理  JINGTAIBIANLIANG:StaticGUANJIANZIYONGLAISHENGMINGDULIYUDUIXIANGDEJINGTAIBIANLIANG,WULUNYIGELEISHILIHUADUOSHAODUIXIANG,TADEJINGTAIBIANLIANGZHIYOUYIFENKAOBEI。JINGTAIBIANLIANGYEBEICHENGWEILEIBIANLIANG。JUBUBIANLIANGNENGBEISHENGMINGWEIstaticBIANLIANG。

      JINGTAIFANGFA:StaticGUANJIANZIYONGLAISHENGMINGDULIYUDUIXIANGDEJINGTAIFANGFA。JINGTAIFANGFABUNENGSHIYONGLEIDEFEIJINGTAIBIANLIANG。JINGTAIFANGFACONGCANSHULIEBIAODEDAOSHUJU,RANHOUJISUANZHEIXIESHUJU。

      FinalXIUSHIFU

      FinalBIANLIANG:FinalBIANLIANGNENGBEIXIANSHIDICHUSHIHUABINGQIEZHINENGCHUSHIHUAYICI。BEISHENGMINGWEIfinalDEDUIXIANGDEYINYONGBUNENGZHIXIANGBUTONGDEDUIXIANG。DANSHIfinalDUIXIANGLIDESHUJUKEYIBEIGAIBIAN。YEJIUSHISHUOfinalDUIXIANGDEYINYONGBUNENGGAIBIAN,DANSHILIMIANDEZHIKEYIGAIBIAN。

      FinalXIUSHIFUTONGCHANGHEstaticXIUSHIFUYIQISHIYONGLAICHUANGJIANLEICHANGLIANG。

    荣耀彩票代理  FinalFANGFA:LEIZHONGDEFinalFANGFAKEYIBEIZILEIJICHENG,DANSHIBUNENGBEIZILEIXIUGAI。SHENGMINGfinalFANGFADEZHUYAOMUDESHIFANGZHIGAIFANGFADENEIRONGBEIXIUGAI。

      FinalLEI:FinalLEIBUNENGBEIJICHENG,MEIYOULEINENGGOUJICHENGfinalLEIDERENHETEXING。

      AbstractXIUSHIFU

    java

      CHOUXIANGLEI:CHOUXIANGLEIBUNENGYONGLAISHILIHUADUIXIANG,SHENGMINGCHOUXIANGLEIDEWEIYIMUDESHIWEILEJIANGLAIDUIGAILEIJINXINGKUOCHONG。YIGELEIBUNENGTONGSHIBEIabstractHEfinalXIUSHI。RUGUOYIGELEIBAOHANCHOUXIANGFANGFA,NEIMEGAILEIYIDINGYAOSHENGMINGWEICHOUXIANGLEI,FOUZEJIANGCHUXIANBIANYICUOWU。

      CHOUXIANGLEIKEYIBAOHANCHOUXIANGFANGFAHEFEICHOUXIANGFANGFA。

      CHOUXIANGFANGFA:CHOUXIANGFANGFASHIYIZHONGMEIYOURENHESHIXIANDEFANGFA,GAIFANGFADEDEJUTISHIXIANYOUZILEITIGONG。CHOUXIANGFANGFABUNENGBEISHENGMINGCHENGfinalHEstrict。

      RENHEJICHENGCHOUXIANGLEIDEZILEIBIXUSHIXIANFULEIDESUOYOUCHOUXIANGFANGFA,CHUFEIGAIZILEIYESHICHOUXIANGLEI。

      RUGUOYIGELEIBAOHANRUOGANGECHOUXIANGFANGFA,NEIMEGAILEIBIXUSHENGMINGWEICHOUXIANGLEI。CHOUXIANGLEIKEYIBUBAOHANCHOUXIANGFANGFA。

      SynchronizedXIUSHIFU

    荣耀彩票代理  SynchronizedGUANJIANZISHENGMINGDEFANGFATONGYISHIJIANZHINENGBEIYIGEXIANCHENGFANGWEN。SynchronizedXIUSHIFUKEYIYINGYONGYUSIGEFANGWENXIUSHIFU。

    荣耀彩票代理  TransientXIUSHIFU

    荣耀彩票代理  XULIEHUADEDUIXIANGBAOHANBEItransientXIUSHIDESHILIBIANLIANGSHI,javaXUNIJI(JVM)TIAOGUOGAITEDINGDEBIANLIANG。GAIXIUSHIFUBAOHANZAIDINGYIBIANLIANGDEYUJUZHONG,YONGLAIYUCHULILEIHEBIANLIANGDESHUJULEIXING。

      volatileXIUSHIFU

    荣耀彩票代理  VolatileXIUSHIDECHENGYUANBIANLIANGZAIMEICIBEIXIANCHENGFANGWENSHI,DOUQIANGPOCONGGONGXIANGNEICUNZHONGZHONGDUGAICHENGYUANBIANLIANGDEZHI。ERQIE,DANGCHENGYUANBIANLIANGFASHENGBIANHUASHI,QIANGPOXIANCHENGJIANGBIANHUAZHIHUIXIEDAOGONGXIANGNEICUN。ZHEIYANGZAIRENHESHIKE,LIANGGEBUTONGDEXIANCHENGZONGSHIKANDAOMOUGECHENGYUANBIANLIANGDETONGYIGEZHI。YIGEvolatileDUIXIANGYINYONGKENENGSHInull。

    荣耀彩票代理  SHIBUSHIDUIJAVAYOUYOULEXINDELIJIEHERENSHI,XUEXIDEJINCHENGJIUSHIYAOYOUQIANZHISHEN,YIBUYIGEJIAOYINCAINENGBADICAIPINGZOUDEGENGYUAN。DAHAOYIGEJIANGUDEJICHUSHIFEICHANGZHONGYAODESHIQING,ZHONGYAODESHIQINGSHUOSANBIAN。

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