byte数组自动扩容
package com.digican.ztest;import java.io.DataInputStream;import java.io.File;import java.io.FileInputStream;/** * 数组自动扩容；在实际的socket通讯中经常会用到数组自动增加 * @author yaodaqing * */public class TestByte {private static final int BUFFER_SIZE = 512;public static void main(String[] args) {try {DataInputStream dis = new DataInputStream(new FileInputStream(new File("d:/abc.txt")));byte[] b = new byte;int i = 0;int t = 0;while((i = dis.read()) != -1){//开始：数组自动扩容if(t==b.length){byte[] temp = new byte;System.arraycopy(b, 0, temp, 0, b.length);b = temp;temp = null;}b = (byte)i;t++;//结束//此处是处理b的程序。。。}} catch (Exception e) {e.printStackTrace();}}}
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