Java基础复习:IDE快捷键与Git命令详解

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本资源是一份关于Java基础知识的复习资料,主要针对面向对象编程进行讲解。主要内容涵盖了IDE中的常用快捷键,这对于提高编程效率至关重要。例如,`Alt+/`键在Java类中可以快速生成main方法、`System.out.println()`、重写父类方法、导入未import的类以及生成getter和setter等。在JSP页面和XML文件中,同样可以利用这个快捷键进行提示和输入。 此外,还介绍了文档注释的添加方式(`Alt+Shift+j`)和一些常用的代码操作快捷键,如`Ctrl+Shift+T`用于查找类文件,`Ctrl+Shift+F4`关闭窗口,`Ctrl+O`打开声明等。这些功能使得代码编写更加流畅和高效。 在Git版本控制部分,详细列出了常用的命令及其作用。包括`git init`用于初始化并创建git仓库,`git status`查看文件状态,`git add`将文件添加到暂存区,`git commit`提交更改到本地仓库,以及`git log`查看提交历史。教程还指导了如何通过一系列操作,如新建文件、添加文件、查看状态和提交,来管理项目版本。 整个资源以博主Jerem y321321的身份发布,强调了基础操作的重要性和实践性,适合初学者和有一定经验的开发者进行巩固和复习。掌握这些快捷键和Git命令,不仅能提升编程效率,也能更好地理解和管理代码版本。

06-12 16:01:50.335 25052 25443 D MediaCodec-java: start --start 06-12 16:01:50.338 25052 25443 D MediaCodec-java: Current process == com.ktcp.video 06-12 16:01:50.339 25052 25443 I com.ktcp.video: Rejecting re-init on previously-failed class java.lang.Class<com.skydebug.ftrace.FtraceSys>: java.lang.UnsatisfiedLinkError: dlopen failed: library "libskytrace.so" not found 06-12 16:01:50.339 25052 25443 I com.ktcp.video: (Throwable with no stack trace) 06-12 16:01:50.340 25052 25443 W System.err: java.lang.NoClassDefFoundError: com.skydebug.ftrace.FtraceSys 06-12 16:01:50.340 25052 25443 W System.err: at android.media.MediaCodec.setSkyMediaStatus(MediaCodec.java:2023) 06-12 16:01:50.340 25052 25443 W System.err: at android.media.MediaCodec.start(MediaCodec.java:2331) 06-12 16:01:50.340 25052 25443 W System.err: at com.tencent.thumbplayer.core.codec.tmediacodec.codec.DirectCodecWrapper.start(DirectCodecWrapper.java:82) 06-12 16:01:50.340 25052 25443 W System.err: at com.tencent.thumbplayer.core.codec.tmediacodec.TMediaCodec.start(TMediaCodec.java:136) 06-12 16:01:50.340 25052 25443 W System.err: at com.tencent.thumbplayer.core.codec.decoder.TPBaseMediaCodecDecoder.initMediaCodecInternal(TPBaseMediaCodecDecoder.java:317) 06-12 16:01:50.340 25052 25443 W System.err: at com.tencent.thumbplayer.core.codec.decoder.TPBaseMediaCodecDecoder.startDecoder(TPBaseMediaCodecDecoder.java:349) 06-12 16:01:50.340 25052 25443 W System.err: at com.tencent.thumbplayer.core.codec.decoder.TPMediaCodecManager.initVideoMediaCodec(TPMediaCodecManager.java:112) 06-12 16:01:50.340 25052 25443 W System.err: Caused by: java.lang.UnsatisfiedLinkError: dlopen failed: library "libskytrace.so" not found 06-12 16:01:50.340 25052 25443 W System.err: at java.lang.Runtime.loadLibrary0(Runtime.java:1088) 06-12 16:01:50.340 25052 25443 W System.err: at java.lang.Runtime.loadLibrary0(Runtime.java:998) 06-12 16:01:50.340 25052 25443 W System.err: at java.lang.System.loadLibrary(System.java:1656) 06-12 16:01:50.340 25052 25443 W System.err: at com.skydebug.ftrace.FtraceSys.<clinit>(FtraceSys.java:25) 06-12 16:01:50.340 25052 25443 W System.err: at com.skydebug.ftrace.FtraceSys.PointWriteFile(FtraceSys.java:73) 06-12 16:01:50.340 25052 25443 W System.err: ... 7 more

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2023-07-12 13:37:05.290 -ERROR 17024 [pool-7-thread-1] o.s.s.s.TaskUtils$LoggingErrorHandler : Unexpected error occurred in scheduled task. java.lang.NullPointerException: null at com.ipi.negotiate.task.NegotiateSmallNegotiateTask.qslSmallNegotiateEnd(NegotiateSmallNegotiateTask.java:68) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:84) at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54) at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:93) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266) at java.util.concurrent.FutureTask.run(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)

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01-01 08:11:27.038 E/StrictMode( 2641): Tried to access the API:ViewConfiguration which needs to have proper configuration from a non-UI Context:com.android.camera.app.CameraApp@32d9eff The API:ViewConfiguration needs a proper configuration. Use UI contexts such as an activity or a context created via createWindowContext(Display, int, Bundle) or createConfigurationContext(Configuration) with a proper configuration. 01-01 08:11:27.038 E/StrictMode( 2641): java.lang.IllegalAccessException: Tried to access the API:ViewConfiguration which needs to have proper configuration from a non-UI Context:com.android.camera.app.CameraApp@32d9eff 01-01 08:11:27.038 E/StrictMode( 2641): at android.os.StrictMode.assertConfigurationContext(StrictMode.java:2296) 01-01 08:11:27.038 E/StrictMode( 2641): at android.view.ViewConfiguration.get(ViewConfiguration.java:521) 01-01 08:11:27.038 E/StrictMode( 2641): at android.view.View.<init>(View.java:5321) 01-01 08:11:27.038 E/StrictMode( 2641): at android.widget.ImageView.<init>(ImageView.java:181) 01-01 08:11:27.038 E/StrictMode( 2641): at com.android.camera.data.PhotoItem.getView(PhotoItem.java:127) 01-01 08:11:27.038 E/StrictMode( 2641): at com.android.camera.data.CameraFilmstripDataAdapter.getView(CameraFilmstripDataAdapter.java:151) 01-01 08:11:27.038 E/StrictMode( 2641): at com.android.camera.widget.FilmstripView.buildViewItemAt(FilmstripView.java:850) 01-01 08:11:27.038 E/StrictMode( 2641): at com.android.camera.widget.FilmstripView.reload(FilmstripView.java:1827) 01-01 08:11:27.038 E/StrictMode( 2641): at com.android.camera.widget.FilmstripView.access$1300(FilmstripView.java:58) 01-01 08:11:27.038 E/StrictMode( 2641): at com.android.camera.widget.FilmstripView$3.onFilmstripItemLoaded(FilmstripView.java:1567) 01-01 08:11:27.038 E/StrictMode( 2641): at com.android.camera.data.CameraFilmstripDataAdapter.replaceItemList(CameraFilmstripDataAdapter.java:276) 01-01 08:11:27.038 E/StrictMode( 2641): at com.android.camera.data.CameraFilmstripDataAdapter.access$700(CameraFilmstripDataAdapter.java:39) 01-01 08:11:27.038 E/StrictMode( 2641): at com.android.camera.data.CameraFilmstripDataAdapter$QueryTask.onPostExecute(CameraFilmstripDataAdapter.java:447) 01-01 08:11:27.038 E/StrictMode( 2641): at com.android.camera.data.CameraFilmstripDataAdapter$QueryTask.onPostExecute(CameraFilmstripDataAdapter.java:379) 01-01 08:11:27.038 E/StrictMode( 2641): at android.os.AsyncTask.finish(AsyncTask.java:771) 01-01 08:11:27.038 E/StrictMode( 2641): at android.os.AsyncTask.access$900(AsyncTask.java:199) 01-01 08:11:27.038 E/StrictMode( 2641): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:788) 01-01 08:11:27.038 E/StrictMode( 2641): at android.os.Handler.dispatchMessage(Handler.java:106) 01-01 08:11:27.038 E/StrictMode( 2641): at android.os.Looper.loopOnce(Looper.java:201) 01-01 08:11:27.038 E/StrictMode( 2641): at android.os.Looper.loop(Looper.java:288) 01-01 08:11:27.038 E/StrictMode( 2641): at android.app.ActivityThread.main(ActivityThread.java:7870) 01-01 08:11:27.038 E/StrictMode( 2641): at java.lang.reflect.Method.invoke(Native Method) 01-01 08:11:27.038 E/StrictMode( 2641): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548) 01-01 08:11:27.038 E/StrictMode( 2641): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)

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