Please reply!

[zoster gibrilian]

i need to concatenate 8-length() of 0's before a string that has as length: lenght().
In other words i have to write a loop that will print out (if needed!) 0's in front of a string ... in order to make it a 8 charachter string

P.S.
I can not believe that java does not have a function that prints a charachter n-times. Or does it?

[Joel McNary]

It doesn't, but you can easily write your own:

public static String prefillString(String source, char prependingCharacter, int length){
    if(source== null){
        source = "";
    }
    if(source.length() >= length){
        return source;
    }
    StringBuffer aBuffer = new StringBuffer(source);
    while(aBuffer.length() < length){
        aBuffer.insert(0, prependingCharacter);
    }
    return aBuffer.toString();
}

[Michael Dunn]

Another way, perhaps
String pad = "00000000";
String str = "12345";
str = pad.substring(0,pad.length()-str.length())+str;
System.out.println(str);