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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 Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		float f2 = 123_345_667F; 
  13. 		float f1 = 123_.345_667F; 
  14. 		long y = 123_456_L;
  15.  
  16. 	}
  17. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
Main.java:13: error: illegal underscore
		float f1 = 123_.345_667F; 
		              ^
Main.java:14: error: illegal underscore
		long y = 123_456_L;
		                ^
2 errors
stdout
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Standard output is empty
https://ideone.com/00dMHB
language:
Java (12.0.1)
created:
9 years ago
visibility:
public

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