HelloWorld[Java]

Java 环境变量的配置

Java_Home: C:\Program Files\Java\jdk1.7.0_07

Path: %Java_Home%\bin;%Java_Home%\jre\bin;

ClassPath: .;%Java_Home%\bin;%Java_Home%\lib\dt.jar;%Java_Home%\lib\tools.jar

public class HelloWorld{
  public static void main(String args[]){
    System.out.println("HelloWorld");
  }
}

javac HelloWorld.java 编译

java HelloWorld 运行