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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class A{  
  9.  int a=40; 
  10.  
  11.  public static void main(String args[]){  
  12.   System.out.println(a);  
  13.  
  14.  }  
  15. }
Compilation error #stdin compilation error #stdout 0.04s 4386816KB
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stdin
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Standard input is empty
compilation info 
Main.java:12: error: non-static variable a cannot be referenced from a static context
  System.out.println(a);  
                     ^
1 error
stdout
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Standard output is empty
https://ideone.com/2e6aM1
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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