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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.  
  11. public static void main(String[] args) {
  12.  
  13. 	String s1 ="abcc";
  14.     String s2 = "cbaa";
  15.  
  16. 		getCommon(s1,s2);
  17.  
  18. 	}
  19.  
  20. public static void getCommon(String s1,String s2){
  21.  
  22.  
  23.      char[] s1Array = s1.toCharArray();  
  24.      char [] s2Array = s2.toCharArray();  
  25.  
  26.  
  27.  Set<Character>s1CharSet = new HashSet<Character>();  
  28.  Set<Character>s2CharSet = new HashSet<Character>();  
  29.  
  30.  for(char c:s1Array){  
  31.      s1CharSet.add(c);  
  32.  }  
  33.  
  34.  for(char c: s2Array){  
  35.      s2CharSet.add(c);  
  36.  }  
  37.  
  38.  s1CharSet.retainAll(s2CharSet);  
  39.  
  40.  if(s1CharSet.size()==0){  
  41.      System.out.println("There are no common characters between the two strings");  
  42.  }  
  43.  
  44.  else{  
  45.      System.out.println(s1CharSet);  
  46.  }  
  47.  
  48.  
  49.  }  
  50.  
  51. }
Success #stdin #stdout 0.07s 380224KB
comments (?)
stdin 
Standard input is empty
stdout 
[b, c, a]
https://ideone.com/XKg6Tq
language:
Java (HotSpot 12)
created:
11 years ago
visibility:
public

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