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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.  
  8. /* Name of the class has to be "Main" only if the class is public. */
  9. class Ideone
  10. {
  11. 	  public static void createHostArray(String[] root, String[] result, int index) {
  12.  
  13. 	  	String host="";
  14. 	  	int i = index;
  15. 	  	if (index == root.length) {
  16. 	  		return;
  17. 	  	}
  18. 	  	for ( ; i < root.length-1; i++) {
  19.  
  20. 	  		host += root[i] + ".";
  21. 	  	}
  22. 	  	System.out.println(index + "-" + i);
  23. 	  	if (i < root.length) {
  24. 	  		host += root[i];
  25. 	  	}
  26.  
  27. 	  	result[index] = host;
  28. 	  	createHostArray(root, result, ++index);
  29.     }
  30.  
  31. 	public static void main (String[] args) throws java.lang.Exception
  32. 	{
  33. 		String host = "a.b.c.d.e.f";
  34.  
  35. 		String [] tokens = host.split("\\.");
  36.  
  37. 		String [] result = new String[tokens.length];
  38.  
  39. 	  createHostArray(tokens, result, 0);
  40.  
  41. 	  for (String s : result) {
  42. 	  	System.out.println(s);
  43. 	  }
  44.  
  45. 	}
  46. }
  47.  
  48.  
  49.  
  50.  
Success #stdin #stdout 0.06s 380160KB
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Standard input is empty
stdout
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0-5
1-5
2-5
3-5
4-5
5-5
a.b.c.d.e.f
b.c.d.e.f
c.d.e.f
d.e.f
e.f
f
https://ideone.com/MnMZOL
language:
Java (12.0.1)
created:
10 years ago
visibility:
public

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