j2sdk1.4.2_04环境变量设置

jdk环境变量设置 

jdk下载地址

http://javashoplm.sun.com/ECom/docs/Welcome.jsp?StoreId=22&PartDetailId=j2sdk-1.4.2_04-oth-JPR&SiteId=JSC&TransactionId=noreg

49.36 MB 

j2sdk1.4.2_04环境变量 

JAVA_HOME=C:/j2sdk1.4.2_04
PATH=%JAVA_HOME%/bin
CLASSPATH=.;%JAVA_HOME%/lib/tools.jar 

//Hello.java

public class Hello
{  //an application

 public static void main (String args[ ])
 {

  System.out.println("Hello World!");

 }

}