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java-io-BufferedInputStream.java
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35 lines (31 loc) · 1.08 KB
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BufferedInputStream |
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# InputStream 装饰类,带缓冲区的流
# 构造
BufferedInputStream(InputStream in)
BufferedInputStream(InputStream in, int size)
* 创建具有指定缓冲区大小的 BufferedInputStream 并保存其参数，即输入流 in，以便将来使用。
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方法/字段 |
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int read(byte[] b);
* 把流读取到一个字节数组,返回读取到的字节数
int read()
* 仅仅读取一个字节并且返回
int available() ;
* 返回可以从此输入流读取（或跳过）、且不受此输入流接下来的方法调用阻塞的估计字节数。
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静态方法/字段 |
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Demo |
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FileInputStream fileInputStream = new FileInputStream(PATH);
BufferedInputStream bufferedInputStream = new BufferedInputStream(fileInputStream,1024); //构建缓冲区流,指定缓冲区大小
int len = 0;
byte[] buf = new byte[1024];
while (((len = bufferedInputStream.read(buf)) != -1)){
System.out.println(new String(buf,0,len,"GBK"));
}
bufferedInputStream.close();