用填充字符填充数组

//package com.nowjava;
/** 
 来自 N o w J a v a . c o m**/


import java.util.Arrays;


public class Main {

    public static void main(String[] argv) throws Exception {

        int fillingLength = 2;

        char fillingChar = 'a';

        System.out.println(filler(fillingLength, fillingChar));

    }


    public static String filler(int fillingLength, char fillingChar) {

        char[] buf = new char[fillingLength];


        Arrays.fill(buf, 0, buf.