Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*=============================================================================#
 # Copyright (c) 2012-2015 Stephan Wahlbrink (WalWare.de) and others.
 # All rights reserved. This program and the accompanying materials
 # are made available under the terms of the Eclipse Public License v1.0
 # which accompanies this distribution, and is available at
 # http://www.eclipse.org/legal/epl-v10.html
 # 
 # Contributors:
 #     Stephan Wahlbrink - initial API and implementation
 #=============================================================================*/

import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.RandomAccess;

public class Main {
    /**
     * @since 1.1
     */
    public static String toString(final List<?> list, final String sep) {
        final int n = list.size();
        if (n <= 0) {
            return ""; //$NON-NLS-1$
        } else if (n == 1) {
            return list.get(0).toString();
        } else if (list instanceof RandomAccess) {
            final StringBuilder sb = new StringBuilder(list.get(0).toString());
            for (int i = 1; i < n; i++) {
                sb.append(sep);
                sb.append(list.get(i).toString());
            }
            return sb.toString();
        } else {
            final Iterator<?> iter = list.iterator();
            final StringBuilder sb = new StringBuilder(iter.next().toString());
            for (int i = 1; i < n; i++) {
                sb.append(sep);
                sb.append(iter.next().toString());
            }
            return sb.toString();
        }
    }

    /**
     * @since 1.5
     */
    public static String toString(final Collection<?> c, final String sep) {
        if (c instanceof List) {
            return toString((List<?>) c, sep);
        }
        final int n = c.size();
        if (n <= 0) {
            return ""; //$NON-NLS-1$
        } else if (n == 1) {
            return c.iterator().next().toString();
        } else {
            final Iterator<?> iter = c.iterator();
            final StringBuilder sb = new StringBuilder(iter.next().toString());
            for (int i = 1; i < n; i++) {
                sb.append(sep);
                sb.append(iter.next().toString());
            }
            return sb.toString();
        }
    }
}