Java Array to String toString(T[] array)

Description

to String

License

Open Source License

Declaration

public static <T> String toString(T[] array) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2014, 2015 Scott Clarke (scott@dawg6.com).
 *
 * This file is part of Dawg6's Common Libary.
 *
 * Dawg6's Common Libary is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version./*from w  w w  .j av a 2  s.c o m*/
 *
 * Dawg6's Common Libary is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *******************************************************************************/

import java.util.Collection;

import java.util.Map;

public class Main {
    public static <K, V> String toString(Map<K, V> map) {

        if (map == null)
            return "null";

        StringBuffer buf = new StringBuffer();

        buf.append("{");

        boolean first = true;

        for (Map.Entry<K, V> e : map.entrySet()) {
            if (first)
                first = false;
            else
                buf.append(",");

            buf.append("(" + e.getKey() + "," + e.getValue() + ")");
        }

        buf.append("}");

        return buf.toString();
    }

    public static <T> String toString(Collection<T> coll) {

        if (coll == null)
            return "null";

        StringBuffer buf = new StringBuffer();

        buf.append("{");

        boolean first = true;

        for (T t : coll) {

            if (first)
                first = false;
            else
                buf.append(",");

            buf.append(t.toString());
        }

        buf.append("}");

        return buf.toString();
    }

    public static <T> String toString(T[] array) {

        if (array == null)
            return "null";

        StringBuffer buf = new StringBuffer();

        buf.append("[");

        boolean first = true;

        for (T t : array) {

            if (first)
                first = false;
            else
                buf.append(",");

            buf.append(t.toString());
        }

        buf.append("]");

        return buf.toString();
    }
}

Related

1. toString(String[] arguments)
2. toString(String[] array, String delimiter)
3. toString(String[] line)
4. toString(String[] paramNames, Object[] params)
5. toString(T[] array)
6. toString(T[] array, String prefix, String sep, String suffix)
7. toStringArray(Collection strings)
8. toStringArray(Dictionary props, String key, String[] defaultArray)
9. toStringArray(final E[] array)