testbytearrayinputstream.java

本书是一本为Java学习者在基础内容学习结束后进行课程设计时提供参考的指导书

package apibook.c3.s7;

import java.io.*;

//测试ByteArrayInputStream类
public class TestByteArrayInputStream {
  public TestByteArrayInputStream() {
  }
  public static void main(String[] args) {
        byte[] inputbytes = { 'a', 'b', 'c', 'd', 'e'};//字节数组
        ByteArrayInputStream in = new ByteArrayInputStream(inputbytes);

        System.out.println("Available: " + in.available());//输出可用字节数
        int b;

        while ((b=in.read()) >= 0)        //读取"abcde"
            System.out.print((char)b);
        in.reset();//重设流位置
        System.out.println();

        in.skip(3);                       //跳过3个字节"abc"

        while ((b=in.read()) >= 0)        //读字节数据"de"
            System.out.print((char)b);
        System.out.println();
  }

}