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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. 	static boolean isAlphabet(char x) {
  11. 		return ((x >= 'A' && x <= 'Z') || (x >= 'a' && x <= 'z'));
  12. 	}
  13.  
  14. 	static void reverse(char ch[]) {
  15.  
  16. 		int l = 0;
  17. 		int startIndex = 0;
  18. 		int endIndex = 0;
  19. 		while (l < ch.length - 1) {
  20. 			if (isAlphabet(ch[l])) {
  21. 				l++;
  22. 			} else {
  23. 				endIndex = l - 1;
  24. 				while (startIndex < endIndex){
  25. 					char temp = ch[startIndex];
  26. 					ch[startIndex] = ch[endIndex];
  27. 					ch[endIndex] = temp;
  28. 					endIndex--;
  29. 					startIndex++;
  30. 				}
  31. 				l++;
  32. 				startIndex = l;
  33. 			}
  34. 		}
  35. 	}
  36.  
  37. 	public static void main(String[] args) throws java.lang.Exception {
  38. 		String inputString = "comp!ex, ex.amp!e";
  39. 		char[] ch = inputString.toCharArray();
  40. 		reverse(ch);
  41. 		String reverseString = new String(ch);
  42. 		System.out.println(reverseString);
  43. 	}
  44. }
Success #stdin #stdout 0.11s 321600KB
comments (?)
stdin 
Standard input is empty
stdout 
pmoc!xe, xe.pma!e
https://ideone.com/xKfBIT
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

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