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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. /* Name of the class has to be "Main" only if the class is public. */
  7. class Ideone
  8. {
  9. 	public static void main (String[] args) throws java.lang.Exception
  10. 	{
  11. 		String str = "x , y - zzzzzz";
  12. 		System.out.println(str.charAt(0));
  13. 		System.out.println(str.replaceAll("^(.).*", "$1"));
  14. 		System.out.println(str.substring(0, 1));
  15. 	}
  16. }
Success #stdin #stdout 0.1s 320320KB
comments (?)
stdin 
Standard input is empty
stdout 
x
x
x
https://ideone.com/2TeGLk
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
secret

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