Java generating a Blanks String

is there a more efficient way to generate a String full of blanks with a customizable size like the following:

private String getBlanks (int numberOfBlanks)
    {
        String theBlanks = "";
        for (int i = 0; i < numberOfBlanks; i++)
        {
            theBlanks = theBlanks + " ";
        }
        return theBlanks;
    }

Perhaps with a StringBuilder or any other type?

EDIT: Since we have Appache Commons Lang the most convinient way of doing is through the use of String Utils - leftPad, thanks 开发者_Python百科everyone for the answers!

Thanks

Maybe like this:

private String getBlanks(int numberOfBlanks) {
       char[] chars = new char[numberOfBlanks];
       Arrays.fill(chars, (char)32);
       return new String(chars);
}

With Guava

String blanks = Strings.repeat(" ", numOfblanks);

Quick hack using StringUtils:

return StringUtils.leftPad("", numberOfBlanks, ' ');

First of all - use a StringBuilder, and then return StringBuilder.toString

You want a StringBuilder:

private String getBlanks (int numberOfBlanks)
    {
        StringBuilder theBlanks = new StringBuilder(numberOfBlanks);
        for (int i = 0; i < numberOfBlanks; i++) theBlanks.append(" ");
        return theBlanks.toString();
    }

String getBlankString(int length){
  StringBuffer sb=new StringBuffer(length);

  for(int i=0;i<length;i++){
    sb.append(" ");
  }
  return sb.toString();
}

private String getBlanks (int numberOfBlanks) {
    StringBuilder sb = new StringBuilder();
    sb.setLength(numberOfBlanks);
    sb.replace(0, numberOfBlanks-1, " ");

    return sb.toString();
}