Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.util.Collection;

public class Main {
    private static final String EMPTY_STRING = "";

    /**
     * Returns a token string from a collection. Uses {@code Object#toString()}
     * to get the collection elements strings.
     *
     * @param collection           collection
     * @param delimiter            delimiter
     * @param delimiterReplacement replacement for all delimiters contained in
     *                             a collection's element
     * @return                     token string
     */
    public static String toTokenString(Collection<? extends Object> collection, String delimiter,
            String delimiterReplacement) {
        if (collection == null) {
            throw new NullPointerException("collection == null");
        }

        if (delimiter == null) {
            throw new NullPointerException("delimiter == null");
        }

        if (delimiterReplacement == null) {
            throw new NullPointerException("delimiterReplacement == null");
        }

        StringBuilder tokenString = new StringBuilder();
        int index = 0;

        for (Object o : collection) {
            tokenString.append(((index == 0) ? EMPTY_STRING : delimiter));
            tokenString.append(o.toString().replace(delimiter, delimiterReplacement));
            index++;
        }

        return tokenString.toString();
    }
}