编写程序

创建并打开HelloWorld.java并书写以下内容

public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello World");
}
}
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编译并运行程序

  1. 进入文件根目录
  2. javac HelloWorld.java
  3. java HelloWorld

输出结果

Hello World
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