Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

import java.util.Collection;
import java.util.List;
import java.util.Set;

public class Main {

    public static String join(String[] array) {
        return join(array, ",");
    }

    public static String join(String[] array, String delim) {
        if (array == null || array.length == 0) {
            return "";
        }
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < array.length; i++) {
            sb.append(array[i]);
            sb.append(delim);
        }
        return sb.substring(0, sb.length() - delim.length());
    }

    public static String join(List<?> list) {
        return join(list, ",");
    }

    public static String join(Set<?> set) {
        return join(set, ",");
    }

    public static String join(Collection<?> collection) {
        return join(collection, ",");
    }

    public static String join(Number[] numbers) {
        return join(numbers, ",");
    }

    public static String join(Number[] numbers, String delim) {
        if (numbers == null || numbers.length == 0) {
            return "";
        }
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < numbers.length; i++) {
            sb.append(numbers[i]);
            sb.append(delim);
        }
        return sb.substring(0, sb.length() - delim.length());
    }

    public static String join(Collection<?> collection, String join) {
        Object[] obj = collection.toArray();
        String[] arr = new String[obj.length];
        for (int i = 0; i < obj.length; i++) {
            arr[i] = String.valueOf(obj[i]);
        }
        return join(arr, join);
    }
}