java - 为什么jdk1.5 以后就可以不用配置classpath环境变量？

Question

本人初学者，最近在看Java疯狂讲义时里面说jdk1.5以后就不用配置classpath环境变量，配了有时反而会出现错误？这是为什么 ？

Answer 1

He is talking about Windows. Linux still needs to be configured. The reason why windows does not need to be configured is because it uses the registry, so it is not necessary. However, some third-party Java applications still require environment variables, so it is best to configure them too

Answer 2

If an error occurs during configuration, it is most likely that you configured it incorrectly. I remember that higher versions of jdk will configure environment variables by themselves. I am used to checking whether the environment variables are correct after installing jdk. In fact, you can know just by testing it on the command line

Answer 3

There seems to be no reason ^^, the Oracle official website no longer mentions manual configurationclasspath in the installation instructions section

Then you probably don’t have to worry about it, haha

Answer 4

I didn’t do it before, but now I do it, there’s nothing strange about it. Isn’t it good that I did it for you?