Here you can find the source of asString(Queue
private static String asString(Queue<byte[]> values)
//package com.java2s; /*//from ww w . j a v a 2 s. co m * Copyright (c) 2013 Ramon Servadei * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.util.Queue; public class Main { private static String asString(Queue<byte[]> values) { StringBuilder sb = new StringBuilder(); sb.append("["); boolean first = true; for (byte[] bs : values) { if (first) { first = false; } else { sb.append(", "); } sb.append(bs.length).append(" bytes"); } sb.append("]"); return sb.toString(); } }