Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/**************************************************************************************
 * Copyright (C) 2008 EsperTech, Inc. All rights reserved.                            *
 * http://esper.codehaus.org                                                          *
 * http://www.espertech.com                                                           *
 * ---------------------------------------------------------------------------------- *
 * The software in this package is published under the terms of the GPL license       *
 * a copy of which has been included with this distribution in the license.txt file.  *
 **************************************************************************************/

import java.io.StringWriter;

import java.util.*;

public class Main {
    public static String toString(Collection<Integer> stack, String delimiterChars) {
        if (stack.isEmpty()) {
            return "";
        }
        if (stack.size() == 1) {
            return Integer.toString(stack.iterator().next());
        }
        StringWriter writer = new StringWriter();
        String delimiter = "";
        for (Integer item : stack) {
            writer.append(delimiter);
            writer.append(Integer.toString(item));
            delimiter = delimiterChars;
        }
        return writer.toString();
    }

    /**
     * Returns a list of the elements invoking toString on non-null elements.
     * @param collection to render
     * @param <T> type
     * @return comma-separate list of values (no escape)
     */
    public static <T> String toString(Collection<T> collection) {
        if (collection == null) {
            return "null";
        }
        if (collection.isEmpty()) {
            return "";
        }
        StringBuilder buf = new StringBuilder();
        String delimiter = "";
        for (T t : collection) {
            if (t == null) {
                continue;
            }
            buf.append(delimiter);
            buf.append(t);
            delimiter = ", ";
        }
        return buf.toString();
    }
}