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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Main
  6. {
  7. 	public static void main (String[] args) throws java.lang.Exception
  8. 	{
  9. 		Scanner in = new Scanner(System.in);
  10. 		String s = in.next();
  11. 		char[] s1 = s.toCharArray();
  12. 		char temp;
  13. 		for (int i=1;i<s.length();i+=2){
  14. 			temp=s.charAt(i-1);
  15. 			s1[i-1]=s.charAt(i);
  16. 			s1[i]=temp;
  17. 		}
  18. 		String s2 = String.valueOf(s1);
  19. 		System.out.println(s2);
  20.  
  21. 	}
  22. }
Success #stdin #stdout 0.07s 2184192KB
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https://ideone.com/Z0zogq
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
secret

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