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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. public class HelloWorld{
  9.  
  10.  
  11.  
  12.  
  13. 	public static void main(String[] args){
  14. 		String s="aaabba";
  15. 		System.out.println(lab6a(s));
  16.  
  17. 	}
  18. 	public static int lab6a(String s){
  19. 		if(s.length()==0)
  20. 		  return 0;
  21. 		if(s.charAt(0)=='a')
  22. 		  return 1+lab6a(s.substring(1));
  23. 		else
  24. 		  return lab6a(s.substring(1));
  25. 	}
  26.  
  27.  
  28. }
  29.  
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
Main.java:8: error: class HelloWorld is public, should be declared in a file named HelloWorld.java
public class HelloWorld{
       ^
1 error
stdout
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Standard output is empty
https://ideone.com/cFT2A7
language:
Java (12.0.1)
created:
9 years ago
visibility:
public

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