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How to find the first non-repeated character in a string with Java

1 Answer

0 votes
public class MyClass {
    static Character getFirstNonRepeatedCharacter(String s) { 
        byte[] count = new byte[256]; 
  
        for (int i = 0; i < s.length(); i++) { 
            count[(int)s.charAt(i)]++ ;
        }
  
        for (int i = 0; i < s.length(); i++) { 
            if (count[(int)s.charAt(i)] == 1)
                return s.charAt(i);
        }
  
        return null;
    } 
    public static void main(String args[]) {
        String s = "java php c"; 
          
        Character ch = getFirstNonRepeatedCharacter(s); 
        
        System.out.print(ch); 
    }
}
  
  
/*
run:
  
j
  
*/

 




answered Feb 9 by avibootz
edited Feb 11 by avibootz
...