fork(5) download
copy 
  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. 	public static void main (String[] args) throws java.lang.Exception {
  11. 		System.out.println("Longest Substring is " + getLongestSubstring("abbcccdf"));
  12. 	}
  13.  
  14. 	public static String getLongestSubstring(String s) {
  15. 			int length = 1;
  16.  
  17.         String longestString = "";
  18.  
  19.         for (int i = 0; i < s.length(); i++) {
  20.             StringBuilder str = new StringBuilder();
  21.             str.append(s.charAt(i));
  22.  
  23.             for (int j = i + 1; j < s.length(); j++) {
  24.                 if (s.charAt(i) == s.charAt(j)) {
  25.                     str.append(s.charAt(j));
  26.                 } else {
  27.                     break;
  28.                 }
  29.             }
  30.             if (length < str.length()) {
  31.                 length = str.length();
  32.                 longestString = str.toString();
  33.             }
  34.  
  35.         }
  36.         return longestString;
  37. 	}
  38. }
Success #stdin #stdout 0.07s 380224KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Longest Substring is ccc
https://ideone.com/JM904Y
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!