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回顾一下Java的 Hello world! public class Hello World(. Use html to show public static void main(String <htmI> System. out. printIn( Hello W <head> <title>hello world </title> </head> <body> Javac Hello World. java Hello world Java hello World class </body> </htm>•回顾一下Java的Hello World！ public class HelloWorld { public static void main(String[] args){ System.out.println(“Hello World!"); } } •Javac HelloWorld.java •Java HelloWorld.class •Use HTML to show <html> <head> <title>Hello World!</title> </head> <body> Hello World! </body> </html>