Os:windows7 x64
Jdk:jdk-8u131-windows-x64
Ide:eclipse Oxygen Release (4.7.0)
Code One:
Package cnblog.jizuiku.tool;//classes in other packages to access this class, you need to add a modifier to tools I add the maximum permissions Publicpublic class Tools {public static void SayHello () {System.out.println ("Hello World");}}
Code two:
/** does not pass the class between packets to access **/package Cnblog.jizuiku;class Demo {public static void main (string[] agrs) { Cnblog.jizuiku.Tool.Tools.sayHello ();//Qualify the class package name by the package name: cnblog.jizuiku.tool//want to use the class in this package, you need to compile}}
Results:
Add:
The location of Demo.class is
The location of Tools.class is
Java is good, worth learning.
Learning resources: Itcast Video Library. If you have public resources, can share to me, with your resources to learn also can.
Blog post is to watch the video, into thinking written. It's good that the teacher speaks well. Blog bad, is to give the most bitter not serious.
If you think the blog can be improved, leave a message.
The JavaSE8 base does not access the classes between packages to qualify classes through the package name