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New To Java The following trails are most useful for beginners: Getting Started– An introduction to Java technology and lessons on installing Java development software and using it to create a simple program. Learning the Java Language– Lessons describing essential concepts such as classes, objects...
javac后面跟着的是java文件的文件名,例如 HelloWorld.java。 该命令用于将 java 源文件编译为 class 字节码文件,如:javac HelloWorld.java。 运行javac命令后,如果成功编译没有错误的话,会出现一个 HelloWorld.class 的文件。 java后面跟着的是java文件中的类名,例如 HelloWorld 就是类名,如: java HelloWorld。 ...
With our online Java compiler, you can edit Java code, and view the result in your browser. Run » publicclassMain{publicstaticvoidmain(String[]args){System.out.println("Hello World!");}} Hello World! Try it Yourself » Click on the "Try it Yourself" button to see how it works....
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publicclassSimple{publicstaticvoidmain(String args[]){ System.out.println("Hello Java"); } } 测试看看 ‹/› 输出结果: HelloJava 应用领域 根据Sun的统计,有30亿个设备运行Java。当前有许多使用Java的设备。其中一些如下: 桌面应用程序,例如acrobat阅读器,媒体播放器,防病毒软件等。
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These trails are available in book form as The Java Tutorial, Sixth Edition. To buy this book, refer to the box to the right. Getting Started— An introduction to Java technology and lessons on installing Java development software and using it to create a simple program. Learning the Java...