Builds a CSV list from the specified String[], separator string and quote string. - Java java.lang

Java examples for java.lang:String Quote

Description

Builds a CSV list from the specified String[], separator string and quote string.

Demo Code

/* Copyright (c) 2001-2008, The HSQL Development Group
 * All rights reserved./* w  w w  . ja  v  a 2s  . c  o m*/
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * Neither the name of the HSQL Development Group nor the names of its
 * contributors may be used to endorse or promote products derived from this
 * software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

//package com.java2s;

public class Main {
    public static void main(String[] argv) {
        String[] s = new String[] { "1", "abc", "level", null,
                "java2s.com", "asdf 123" };
        String separator = "java2s.com";
        String quote = "java2s.com";
        System.out.println(getList(s, separator, quote));
    }

    /**
     * Builds a CSV list from the specified String[], separator string and
     * quote string. <p>
     *
     * <ul>
     * <li>All arguments are assumed to be non-null.
     * <li>Separates each list element with the value of the
     * <code>separator</code> argument.
     * <li>Prepends and appends each element with the value of the
     *     <code>quote</code> argument.
     * <li> No attempt is made to escape the quote character sequence if it is
     *      found internal to a list element.
     * <ul>
     * @return a CSV list
     * @param separator the <code>String</code> to use as the list element separator
     * @param quote the <code>String</code> with which to quote the list elements
     * @param s array of <code>String</code> objects
     */
    public static String getList(String[] s, String separator, String quote) {

        int len = s.length;
        StringBuffer sb = new StringBuffer(len * 16);

        for (int i = 0; i < len; i++) {
            sb.append(quote);
            sb.append(s[i]);
            sb.append(quote);

            if (i + 1 < len) {
                sb.append(separator);
            }
        }

        return sb.toString();
    }

    public static String getList(Object[] s, String separator, String quote) {

        int len = s.length;
        StringBuffer b = new StringBuffer(len * 16);

        for (int i = 0; i < len; i++) {
            b.append(quote);
            b.append(s[i]);
            b.append(quote);

            if (i + 1 < len) {
                b.append(separator);
            }
        }

        return b.toString();
    }

    /**
     * Builds a CSV list from the specified int[], <code>separator</code>
     * <code>String</code> and <code>quote</code> <code>String</code>. <p>
     *
     * <ul>
     * <li>All arguments are assumed to be non-null.
     * <li>Separates each list element with the value of the
     * <code>separator</code> argument.
     * <li>Prepends and appends each element with the value of the
     *     <code>quote</code> argument.
     * <ul>
     * @return a CSV list
     * @param s the array of int values
     * @param separator the <code>String</code> to use as the separator
     * @param quote the <code>String</code> with which to quote the list elements
     */
    public static String getList(int[] s, String separator, String quote) {

        int len = s.length;
        StringBuffer sb = new StringBuffer(len * 8);

        for (int i = 0; i < len; i++) {
            sb.append(quote);
            sb.append(s[i]);
            sb.append(quote);

            if (i + 1 < len) {
                sb.append(separator);
            }
        }

        return sb.toString();
    }

    /**
     * Builds a CSV list from the specified String[][], separator string and
     * quote string. <p>
     *
     * <ul>
     * <li>All arguments are assumed to be non-null.
     * <li>Uses only the first element in each subarray.
     * <li>Separates each list element with the value of the
     * <code>separator</code> argument.
     * <li>Prepends and appends each element with the value of the
     *     <code>quote</code> argument.
     * <li> No attempt is made to escape the quote character sequence if it is
     *      found internal to a list element.
     * <ul>
     * @return a CSV list
     * @param separator the <code>String</code> to use as the list element separator
     * @param quote the <code>String</code> with which to quote the list elements
     * @param s the array of <code>String</code> array objects
     */
    public static String getList(String[][] s, String separator,
            String quote) {

        int len = s.length;
        StringBuffer sb = new StringBuffer(len * 16);

        for (int i = 0; i < len; i++) {
            sb.append(quote);
            sb.append(s[i][0]);
            sb.append(quote);

            if (i + 1 < len) {
                sb.append(separator);
            }
        }

        return sb.toString();
    }
}

Related Tutorials