[CodingBat/Java] front22

Algorithm/기타(기업등)

[CodingBat/Java] front22

IagreeBUT 2021. 9. 30. 01:49

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링크

CodingBat Java Warmup-1 front22

Given a string, take the first 2 chars and return the string with the 2 chars added at both the front and back, so "kitten" yields"kikittenki". If the string length is less than 2, use whatever chars are there.

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문제

코드

public String front22(String str) {
  
  if(str.length()>=2){
  String front = str.substring(0,2);
  
  return front + str + front;
  }
  else{
    return str+str+str;
  }
  
}

public String front22(String str) {
  // First figure the number of chars to take
  int take = 2;
  if (take > str.length()) {
    take = str.length();
  }
  
  String front = str.substring(0, take);
  return front + str + front;
}

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