Java 环境变量的配置
Java_Home: C:Program FilesJavajdk1.7.0_07
Path: %Java_Home%in;%Java_Home%jrein;
ClassPath: .;%Java_Home%in;%Java_Home%libdt.jar;%Java_Home%lib ools.jar
public class HelloWorld{ public static void main(String args[]){ System.out.println("HelloWorld"); } }
javac HelloWorld.java 编译
java HelloWorld 运行