My bad run Eclipse !

I can not run up in the morning Eclipse
I tried Hello World The following shows the column is blank
Tomcat installed a few days ago this affect you ?
environment variables will issue ah !
seeking large cattle solve online
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like this, you first use javac to compile a HelloWorld.java file to see it together properly ?

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

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not running can also try Hello World
Console console is not to close the
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http://bbs. csdn.net/topics/370103511
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open the Task Manager ! javaw.exe found inside the process and then end off this ! you can run up


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give you two solutions:
1. shutdown restart .
2. re-do the system .
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specific point of it
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or after you set the environment variable installed oracle what, put your environment variables to change, you re setting