Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

public class Main {
    private static final String INVALID_ARGUMENT = "Invalid Argument";

    public static String addPadding(String t, String s, int num) {
        StringBuilder retVal;

        if (null == s || 0 >= num) {
            throw new IllegalArgumentException(INVALID_ARGUMENT);
        }

        if (s.length() <= num) {
            return s.concat(t);
        }

        retVal = new StringBuilder(s);

        for (int i = retVal.length(); i > 0; i -= num) {
            retVal.insert(i, t);
        }
        return retVal.toString();
    }
}